Watch ULA launch the world's largest operational rocket, the Delta IV Heavy!

[Music] [Applause] [Music] [Music] [Music] [Applause] [Music] [Music] [Music] [Applause] [Music] my [Music] [Applause] [Music] [Applause] [Music] [Music] so [Music] hi it's me tim dodd the everyday astronaut welcome to my live coverage of uh delta iv heavy uh this is actually one of my favorite rockets that's currently flying now granted i have a close personal connection to it because it is the first launch that i actually caught with my own eyeballs like i had been to launches before uh i saw a double four heavy launch but i they're always like cloudy or so overcast even though i was like three miles away five kilometers away one time from uh from a delta ii couldn't see it through the fog which was crazy um that sounds familiar uh but yeah so i have just just closed personal i just love the delta iv heavy i think it's super cool and looks like everything is actually green for today's launch so let's go ahead and run you guys through uh the pre-launch preview so you know what to expect on today's launch now of course anytime you guys have any questions about upcoming rocket launches anytime you see that there's a rocket launch coming up and you're like i wonder where this is launching or how much it's doing or when it's like any questions that you guys have which which i see often still online don't forget you can just go to everydayastronaut.com and you can click on pre-launch previews now give me one second here because i realize i left this up okay here we go uh pre-launch previews uh this so yeah every day astronaut click on the upcoming launches and you'll see a list of of upcoming launches today's launch this is the nrol82 on a delta four heavy so this is uh scheduled uh time is subject to change but it's actually looking good right now we are still uh still green as they say uh for weather and the vehicle and that's uh looking like it's going to be taking off here in about 20 or 32 minutes as you can tell uh so that's 1 47 pacific time which is where it's taking off from it's taking off let's get to that in a second or 247 utc so the mission name this is nrol uh which is a national reconnaissance office launch uh so this is nrol82 um the launch provider who is launching this rocket you know who's the the ups or the fedex or the you know whatever insert name there of you know like of your shipping carrier the person delivering this payload the people delivering this payload is united launch alliance ula of course one of the most trusted launch providers and tried and true the customer who's paying for this so the person that wants their package delivered is of course the national reconnaissance reconnaissance office the nro the rocket today is the delta for heavy this is the largest operational flying rocket i mean it is basically it's the exact same height as a falcon 9 but each core instead of being 3.7 meters wide is 5 meters wide so it's substantially larger than a falcon heavy actually you can see my orange one there um it is is larger than a [ __ ] heavy these are not to scale this and this is not the scale um but uh yeah it is the largest operational flying rocket so um that's a fun little thing to keep in mind the uh it's taking off today from also so this is one of my favorite rockets but it's also one of my favorite launch pads slick six out in vandenberg has some of the coolest history um in the world i mean it's just at one point they're going to be launching a space shuttle from there and when you see pictures of that i'll show you that in a little bit when you see pictures of a space shuttle in the mountains of vandenberg air force base on the west coast of the united states it looks i don't know just looks so like 80s and cool and like it's not supposed to have happened well it didn't happen and it should have happened but there's no way it's ever gonna happen i don't know it's hard to explain like it's just it's a little bit of a shame you know it's it's uh but it looks really pretty that's the point of that the payload mass of this is unknown because this is basically a spy satellite uh where is the satellite going we don't really know uh will they be attempting to recover the first stage no this is not a capability of ula where will the first stage land it'll crash into the pacific ocean and there are three cores that will all be doing that um will it be attempted to recover the fairings no this is also not a capability of ula um so are these fans new of course yes they are um the weather is currently 40 go for launch and the conditions are windy and that is actually a fairly big concern with the uh with the delta iv heavy because it's as certain wind directions it's more prone to having scrubs for low level for ground level winds because it's so the broad side of it you know look at look at how wide it is like a sailboat on the side so certain winds can really have a lot of influence on it right at the launch pad so um depending on the wind direction if it's coming straight on it's more like a normal single core rocket where it's you know has a certain threshold but from the other direction 90 degrees from that it has like three times the surface area so it's three times more likely to be scrubbed because of ground winds so um so that's probably one of the things that they're paying attention to today is the winds this will be the 143rd mission for ula that's a lot the 13th mission of a delta 4 heavy this thing does not fly very often it's the 33rd orbital launch attempt of 2021 we're flying a lot this year this will be the 31st mission for the nro the 90th mission for the united states national security uh so of course if you guys want to know more about this mission kind of get more of a rundown on what all this stuff means and what little things we actually know about this particular launch because there's not actually a lot that we know about the mission itself but of course we know a decent amount about you know the delta iv heavy um of course it's it's a pretty well known well well-published rocket and it uses of course the world's most uh or what in the world it's up there i don't want to say the most because i don't want to pigeonhole myself in case i'm slightly off but uh and of course one of my favorite things about it too is it does use the rl10b2 which is an rl10 rocket engine for the upper stage that has an extending bell nozzle extension so the bell nozzle extension is huge this is like stupid big bell nozzle and in order to fit it inside of a pretty standard sized uh inner stage without just making the inner stage crazy crazy long they do actually make it so it extends kind of like those those travel cups have you guys ever seen those like camping cups that like they go and like pop out and they get bigger it's kind of like that but like one section of it and then that actually allows it to get the the expansion necessary to be really efficient in a vacuum super cool um conditions are still good as of right now i like seeing that sweet launch officer says reports conditions are go for liftoff today yes so yeah if you guys want to learn more about the delta iv heavy um about this particular mission which again i just apologize we don't have a ton of information on this mission uh but go ahead and check out this this article is written this one's written today by austin desisto so everyone say thank you to austin how are you guys i hope everyone is uh is ready for hopefully a launch there's actually a lot going on right now there's this launch which to me is a is you know obviously an orbital launch is is obviously really exciting there's also there's also a starship sn15 is looking to do a static fire here relatively soon so you guys might need to be pulling up multiple screens if you wanted on all of the spaceflight action today um i of course i will not be covering that i kind of stopped covering um i kind of stopped covering the the static fires first for starship i mean yes they're still important there's other people covering them of course uh don't forget you know lab padre and nsf normally try to cover those events but personally to me that's there's better use of my time i'm i was really excited as you guys know to finally get a scripted video done and that's because i started saying no to certain things like oh i'll stick around for this or that or stream every little tiny thing here and there it streams i know that they seem like just a little window of time but they actually take up a lot of time especially when you're trying to do starship streams those ones are very very very heavy uh are heavy i've read delta four heavy those ones are they're they're time-heavy they're time-heavy so yeah um today you know again i'm really excited about the delta iv heavy i think this is a really cool rocket um it's the only rocket that flies i think this is the only rocket in history that's entirely hydrogen there's no strap-on solid rocket boosters am i right can you guys think of another entirely hydrogen-based rocket that was all upper stage lower stage so really this is like the lowest carbon emitting rocket flying um yeah pretty pretty cool well let's get to uh um yeah this is exactly christopher smith um has this to say which is exactly what i just said i don't really i haven't covered staticfire since like sn9 i kind of stopped doing them by sn10 just because it became meh right it's just it's a test of some engines i mean yes i'm of course as excited as anybody about you know all the starship stuff but there's i don't want to become a 24-hour news channel just trying to cover starship that my channel is not meant to be that i'm not meant to you know i was explaining this the other day that um you know this channel i've never been one that's supposed to be space news that's not what i that's not what i do it's not what i intend to do uh it's not space news i've always stuck to these kind of uh more broad topics that help you guys understand the physics and choices of space flight i don't really i've only made like two videos ever that were like current event and like in the whole four year history of this channel so i don't i'm always confused people like tim where's your video on hls it's like i made a video last year diving into all the options with hls and it's still completely relevant and how it fits into the artist program blah blah blah but no i didn't make a video about you know the human landing system and starship i i would love to um but i don't i'm trying to stick to the the video list that i have which which i think is is more exciting so um because yeah there's plenty of great people again like mikko the podcast miko with anthony colangelo fantastic rundown on um on the hls system there's a lot of other youtube channels of course you know scott manley covered it there's a lot of people talking about it so i don't see why i would also need to do that same thing this is from musical wolves has the delta iv ever delivered iss supplies this is a great question um yeah the delta iv so there was the delta 4 and there's a delta iv heavy the delta iv medium they would call it which basically was the center core with two additional strap-on solid rocket boosters no delta iv vehicle i don't think has ever visited the international space station as a matter of fact the atlas 5 only did a handful of times if i'm if i'm thinking correctly i think it only the atlas 5 is the only ula rocket to visit the iss and it did it when the cygnus capsule needed a replacement ride instead of using the antares um that was in like 2014 2015 the the explosion was in 2014 so the the contracts oa6 i believe it's always 6 and like oh a they were super out of order um like oh wait four or something were were both um iss missions with the with the atlas v um but yeah that was uh yeah that was uh the only time that a ula rocket i think has actually launched the iss if i remember right let me let me guys know if you guys are uh if you guys know different but i think that's right let's see um so what is the size comparison against the saturn five great question dan the man and guys remember just ask your questions in chat we don't just pick super chats we're trying to make sure that we focus on answering good questions for you guys that's the whole point of this channel is to answer relevant questions about space flight and help answer your questions so just be sure you know we don't have to super chat to get up on screen here uh we're trying to focus on that and but i also have to apologize if you did super chat i might not have a chance to catch it because i'm trying to really focus on on answering questions so the good so dan the man 47 what is the size comparison against the saturn v so it's this is about 70 meters tall again about the exact same height as the saturn v the saturn v of course was a 110 meters tall if i recall off hand um so it's 40 meters shorter the saturn v is um the first bit the first two stages were 10 meters wide then it tapered down to seven this vehicle is actually wider than the saturn v because all together has three five meter cores so it's um you know 15 meters wide a little more than 15 meters wide at the base from one side and five meters wide from the other you know so it's kind of tricky when you have a configuration um like this rocket uh hard to say like how much you know how wide is it when it can be different widths at different angles and such um so it is quite a bit smaller here we go we actually have the live stream coming up here from ula this is great news let me get this kind of pulled up here in the background so you guys can start watching give me one second here um i'm gonna make sure that i am in the right place for this one um and let me go like this so you guys can just kind of see this it's saying it's live but it's not doing anything okay well we'll see if anything actually happens uh yeah okay so um so yeah it's it's still smaller than the than the saturn v but it's bigger in some ways it's not as capable as the saturn v of course the title i did have to change the title for you guys because you were being pedantic it is the cr the largest operational rocket currently flying so of course you know when starship's complete it'll be larger it'll be the largest rocket period ever ever ever why is the play bar staying up get out of there get out of there dr playbar i don't want you i'm just gonna do that there we go okay so yeah there we go it looks like they're coming up on on launch this is a good sign uh so yeah so it is a little bit bigger in some ways okay i don't want okay let's listen in here at space launch complex 6 a delta iv heavy rocket is fueled and ready to launch the nrol 82 mission for the national reconnaissance office good afternoon and welcome to vandenberg air force base in california i'm caroline kirk a systems engineer with ula liftoff is currently planned for 1 47 p.m pacific and the launch team is not working any issues at this time approximately 15 minutes ago the launch count entered a planned hold we have two planned holds in today's nine and a half hour launch count these planned holds give our team additional time to resolve any issues that come up prior to entering the terminal count at the request of our customer today's live mission coverage will conclude following payload fairing jettison scheduled to occur just over six minutes after liftoff in addition to watching our webcast you can follow live mission progress at ula launch dot com i have to do i have to apologize the audio is actually kind of bad on ula's end so i apologize if it sounds kind of crunchy the weather conditions here at vandenberg air force base here's what we're seeing the probability of violating launch constraints is 40 the ground winds are 10 to 15 knots out of the northwest and the temperature is 55 degrees fahrenheit so the weather is within the launch commit criteria and looks favorable for our plan t-zero at 1 47 p.m pacific that's like what 15 degrees celsius for those of you that don't know what fahrenheit is let me let me do that conversion for you guys quick today's flight will head south away from our launch pad here at 13 degrees celsius take a look at what else we can expect to see [Music] so they're going to show the profile here this is a good chance for me to answer a couple more questions because they posted this video on youtube so if you guys want to watch the launch profile uh check that out it's they do a good job of covering those so um this is a great question uh from peter actually we're gonna see it right here this question is why do the flames go so incredibly high just before liftoff on delta heavy compared to the example of the falcon heavy so watch this this is perfect timing because watch this video here you're going to see a flame climb up the side of the rocket big time so what they do is they light one the and this view the right engine first about two seconds before they light the other cores and what they do is they intentionally they have these things called rophies that are giant sparklers basically they don't actually the ropes don't actually have anything to do with the actual ignition of the engines they're just there to make sure they burn off any excess hydrogen because as the engine begins to fuel up and begins to become up to operational temperatures and pressures and do all the things that the engine is doing before ignition there is excess uh there'll be some excess hydrogen that kind of builds up in certain areas and if so if they didn't get rid of that and burn it off it could have this large much larger much more energetic flame wall so instead what they do is they intentionally just light the the excess hydrogen on fire and it climbs up the rocket it gets it a little bit toasty and then they uh then they light the other two engines and by that time a lot of the the excess hydrogen has kind of you know died down a little bit and then they can safely launch the vehicle now this is actually that that flame wall is one of the reasons that it's not human rated this this vehicle the delta iv heavy and the delta iv medium were never considered rated for human flight um the rs-68 isn't a human-rated engine um but also that flame wall was part of the consideration why it would never see um human flight so uh yeah let's see um this is from alexander alexander ash wants to know what is the point in rockets like the ula when they aren't reusable surely it's a waste of money because of space debris stuck in the past well um space debris isn't really much of a bigger concern um the the vehicle will always you know put its uh its remnants into a graveyard orbit or or you know or deorbit itself so it doesn't have anything to do with being reusable now to answer that question i think a lot of it is you guys have to only go back about five years in time to realize just how insane the promise of spacex's rockets were um you know before december 21st 2015 so yeah just over five years ago really no one thought it was possible to do what spacex is doing right now with the falcon 9. and the market moves really really really slowly in the rocket world right the the flights that were booked on this particular rocket were booked you know years and years and years ago the satellites designed for this mission were developed years and years and years ago it just takes a long time for the market to catch up to the to the demand um and as a matter of fact you know even the falcon heavy has only been operational for about three years now and it wasn't going to be winning a billion dollar national reconnaissance we don't even know how much we'll just say a billion dollar a really expensive satellite that's extremely important they're not going to be winning those contracts until they're flying regularly now on these next round of bids on the newest you know the newest things from the national reconnaissance office in the military um spacex is starting to win more and more contracts um ula still was in there because they're so tried and true and reliable but really just what spacex started doing is is just really beyond what 95 percent of the industry thought was even remotely possible right so in order to catch up to where spacex is it's going to take a big change and ula has been making big enough big changes um with their upcoming vulcan rocket now personally of course and a lot of us might have doubts on whether or not it's enough you know if it's too little too late um because it's not going to be fully reusable that they do plan to eventually reuse the engines on the vulcan by recovering them um but they aren't you know it's it's they're taking a lot of precautions on how you can just make it cheaper for manufacturing uh make a lot of common parts have a lot of performance the vulcan is going to be an extremely high performance rocket so hopefully they're you know they're hoping to win out on a lot of those bids because of that and the legacy the heritage of these launch vehicles um is why they keep winning bids like this now um how long is that the real question at this point you know in my mind in a lot of people's mind is for how long can that dominance exist when there are cheaper options on the table right so that's that's kind of where we're at right now with the delta iv and delta four heav or delta four heavy and the atlas v and the vulcan but but again remember rewind five years ago and this was like the only option that cool currently this is the only option still right now the mission that this is flying today uh we don't know the exact parameters it's likely it's direct to geo insertion and a very heavy vehicle um very heavy heavy satellite it might only be capable of doing that on this particular rocket hold on roger vsc lc bse they're getting ready for the go nugget step 1180 verify base bending moment instrumentation is active and data is valid bbm is fully mission capable and recommend placard six alpha roger l-o-l-c network i'll be utilizing placard six alpha copy six alpha today's launch is for the national reconnaissance office or nro this is ula's 31st launch for the nro and ninth use of the delta iv heavy for the nro the nro is a joint organization engaged in the research and development acquisition launch and operation of innovative overhead reconnaissance systems necessary to meet the needs of the intelligence community and the department of defense the nro is recognized for its transformational intelligence collection systems that are used to develop highly accurate military targeting data support international peacekeeping and humanitarian relief operations and to assess the impact of natural disasters all right so until i start talking again i'll answer a few more questions here first keegan thank you yeah the channel's getting very close to 1 million subs which i never would have imagined was going to happen uh in the just i had no idea i had no idea this channel was gonna do that oh on today's payload the details on today's artwork were inspired by a world war ii fighter pilot who was awarded the medal of honor a navy cross and purple heart for heroism and dedication and who had ace fighter pilot skills this patriot was gregory boyington known to many as papi this logo was designed to commemorate the many heroic acts and sacrifices that have been made to protect america the artwork features an eagle symbolizing freedom wearing traditional world war ii flight gear behind the eagle is an f4u corsair the aircraft that pappy boyington flew while in the marine corps additionally we have the latin phrase takatai libertatus custodium quay which translates to silent guardians of freedom below the mission artwork there is an additional patch recognizing the nro's 60th anniversary this year sweet um okay so uh we had a i saw another one okay so stefan wants to know of course uh of course nrol 82 is ula's 90th national security mission gary wentz vice president of government and commercial programs talks about the significance of these missions we're really honored to be here today okay i feel like they they honestly always have these and they're always like we are so happy to be launching so let me answer the question of ula is cool and all uh i agree um but i think we really want to know is when is sn15 uh is it flying this week so uh for me personally my the tim dodd meter is i wouldn't i'll bet the first day that it's actually on the pad attempting to be fueled up and actually like ready to fly um the first attempt i think will be friday in my book and my guess um which means i'm likely going to be heading down back down to boca chica soon um i'm betting it's a little bit of a risk because i'm hoping that the static fire that there's after the static fire there's a little bit more time you know maybe another static fire too or whatever as there always is on starship so i am personally betting if you want my personal opinion on this i am personally betting that sn15 flies no earlier than friday that's just uh having done this now for you know studied every waking minute of starship and when it might launch for two years now ever since star hopper my gut feeling is is it will always be a few days several days after its first static fire um you know at least like three or four days so um that's my personal that's my yeah the tim dodd meter on this one is no earlier than friday at this point if it doesn't static fire today still maybe friday say it doesn't satisfy until tomorrow tomorrow still maybe friday but maybe even more likely monday then in my in my opinion so um oh osm verify the whole fire switch is in the proceed position today's flight is dedicated to frontline workers who have been vital to the fight against covet 19. this mission is also in memory of two nro teammates a few moments ago mission director colonel chad davis remembers these friends and colleagues lisa wilson and ross kabayashi let's listen in i do want to hear these today's launch is dedicated to the memory of past nro teammates notably including lisa wilson engineer friend wife mother and grandmother who for 30 32 years provided unbounded support and technical direction for critical space lift missions resulting in precise orbital insertion of satellite vehicles lisa's achievements are to be remembered as an example of service of the freedoms we stand for go for flight and ross kobayashi mentor friend husband and father who for 25 years had been part of the osl mission assurance team responsible for the assessment of launch vehicle risks and the success of over 50 national launches across the titan atlas and delta launch systems ross served as the technical chair for 28 intro launches leading the efforts to safely shepherd the payloads to orbit culminating with the launch of nro l71 from slick six fight on forever ross mdl i think that's true this is delta mission control honestly that's so cool to me i mean that would be an amazing way to be memorialized super cool for launch continue in a few moments launch conductor scott barney will pull the launch team for the final go to pick up the count 27 engineers and managers are pulled for system status and readiness to proceed this is the final status check before launch for all delta vehicle systems ground systems the spacecraft and the u.s air force western range the vehicle system readiness poll includes electrical systems hydraulics pneumatics propulsion systems flight control and propellants let's listen in as scott barney performs the final polling of the launch team this is honestly like one of my favorite parts terminal count first stage propulsion go hydraulics go locks go lh2 go second station box go lh2 go electrical systems airborne go ground go facility go rffts go flight control go com go gc cube go operation support go pneumatics go umbilicals go house gas go ecs go redline monitor go quality go op safety manager go ula safety officer go vehicle system engineer go anomaly chief go range coordinator clear to proceed launch director launch vehicle is ready to launch mission director you have permission to launch proceeding with account the count of six minutes alc verify t0 is set for 20 colon 47.00 verified meq establish swing arm lock pins pull active yes polling is complete and the launch team has given the go for launch the countdown will resume approximately two minutes from now at t minus four minutes and counting we will enter the terminal count and begin securing the second stage liquid oxygen tank at t minus 3 minutes and 32 seconds cbc liquid hydrogen and liquid oxygen tank securing is started including closing the propellant fill and drain valves also at t minus 3 minutes and 32 seconds vehicle transfer from ground facility power to its own internal battery power will be complete at t minus three minutes the vehicle ordnance system will be armed and the cbc liquid oxygen and liquid hydrogen propellant tanks are verified to be at flight pressure and flight level at two minutes prior to liftoff the team will verify that the hydraulic system is pressurized and confirms cbc dcss and fts battery voltages at t minus 1 minute and 20 seconds the team will begin securing the second stage liquid hydrogen tank at t minus 60 seconds western range readiness is verified at t minus 50 seconds the dcss liquid hydrogen tank is secured at flight level at t minus 15 seconds the launch table hbos are ignited at the base of the vehicle to burn off excess hydrogen at t minus seven seconds the starboard cbc engine is ignited at t minus five seconds the port and center cpc engines are ignited liftoff will at t0 so i'm working on actually like totally syncing up our clocks because they just give us an approximate time so we're going to wait until so notice that my clock was ticking the whole time and they put theirs in a hold because they have this whole built and hold things different so i'm trying to give you guys the actual time until launch there we go 355. grandpa was enabled the countdown clock has resumed we've entered the terminal count and our go for launch at 1 47 p.m pacific time so in my opinion guys i think i think this is going to go today i think they're going to just get this off the pad level gonna get this off the pad right away because the last delta four heavy they launched scrubbed for months and months i don't think the nro was very happy i think they probably sat back and guys we have to knock this one out of the park that's what i think they're going for today i mean obviously they don't want to scrub a launch ever it just costs more for them it frustrates the customer but i really think there is some extra urgency on this particular launch to just get it absolutely right so i my bets are that there as long as the weather's okay but this vehicle has been checked over with the finest tooths of combs's finest toothed comb and all the ground systems are totally ready for today that's my bet i really hope i'm right because i really want to see this thing launched today uh so what do you guys think i i hope that we we see this we'll answer a bunch of questions after the launch um i'll be on this will be a short launch because they won't even show us the upper stage trajectory because of it being national security so um i will stick around and answer lots of questions for you guys here so um just get ready we are now at t minus 40 seconds or so um so the other concern though is is the ground hydraulics and some of the closeout valves when it's cryogenic fuel like this it's all liquid hydrogen which is extremely cold in liquid oxygen which is still cold um but this is where the things tend to get finicky with this rocket because the you know the cryo valves can stick and stuff like that so let's see if they're going to get through all the way down to t0 and get a good launch today so let's listen in here oh i should definitely mention this rocket has triple pointy end and triple flaming end and i'm very flaming into that i better double check that i want to confirm the pointy end is up and the flaming end is down my friends 159 here we go vehicle 155 launch sequencer start they're getting pretty deep into the countdown i like this this is this is looking good 140. fcs launcher 37 so the flight termination system was just enabled so at this point there's actually a uh the actual device on board that if it were to go off direction they can terminate the rocket 90 seconds the launch vehicle payload ground systems and western range are go for launch 120 supposed to use arms fcs count started all right guys we are t minus one minute here k minus one minute inches starbucks scope rock report range status rock range is green that's good that's the range safety officer all right so don't forget guys we're going to see this thing literally light itself on fire at starting about t-minus seven seconds or so that's normal 30 seconds status go nrol 82 sweet they're doing it guys the clock did turn off fifteen seconds ten nine ten minus ten nine eight seven six five there we go two one and yes yes liftoff of the united launch alliance delta iv heavy rocket carried the nrol 82 mission for the national reconnaissance office on the pitch over maneuver the parameters look good on all three cores i knew it i knew it so california if you live in southern california ventura la san diego look west and within about the first two minutes you'll actually be able to see this rocket because it's extremely bright partial thrust achieved you are hearing the voice of rob kesselman providing launch vehicle ascent data now 50 seconds into flight vehicle is 3 miles in altitude 5 miles downrange distance traveling at 970 miles per hour do you want to point out real quick the uh now look at how bright these engines are in the fact that there is an orange flame this rocket burns hydrogen so it's flame is actually supposed to be completely clear just like the space shuttle's main engines uh runs on liquid hydrogen so the byproduct is literally just cloud it was just water vapor which is actually what we're seeing right now as it goes through a certain portion of the atmosphere where where it's easier to make condensation like that but notice that the flame is orange and that's because this rocket has a really uh a more simple rocket engine uh than having to regenerate the the walls with with the fuel instead they literally have an ablatively cooled nozzle the rs-68a has the whole like the whole rocket nozzle is intentionally flakes away and when it flakes away it takes some carbon away with it so it's what you're seeing is that bright orange flaming glow of carbon same with like an rp-1 engine with a say a falcon 9 or falcon heavy what you're seeing is the carbon that's emitted the extra carbon from the exhaust igniting in the atmosphere as an after burning effect this rocket is quite literally eating some of its nozzle and ejecting some of that carbon out that out the back of it so yeah i just think that's fascinating that it still glows orange even though it's completely clear flame uh because it's eating its own engine onto closed loop guidance vehicle body rates are nominal it's doing a little roll here yeah this is basically an engine rich nozzle that's exactly an engine a nozzle rich engine three minutes remain in the booster phase of flight intentional oh that's a cool shuttle racket now weighs just one half of what it did at liftoff burning propellant at a rate of almost 5000 pounds per second that's a cool shot i love seeing those telescopes out one minute until port and starboard booster engine cut off so everything's looking good so far guys vehicle systems look healthy at this time the attitude control system the option autopilot has controlled all vehicle body rates in your zero so get ready in about 30 seconds approximately 30 seconds remaining now until the port and starboard booster engines cut off yeah so that's a camera looking down the center core you're seeing the nose cone of one of the the engines there boosters are now throttling down at the partial thrust level and separation of the strap-on booster core booster is now throttling back up that's i love that shot core booster is operating as expected at the 100 throttle level here's something that's kind of interesting the way it controls is roll because it only has a single engine right so how do you control the roll you know if you have just one engine going up through the middle of your booster how do you control the roll if that engine you know you can control pitch and yaw but how would you control roll what they actually did and it's really smart they took the exhaust from the the gas generators because it only uses gas generators it's not closed cycle it's open cycle they use the exhaust from those put them out like stuck them way out on the engines and put little gimbals on those so they can actually point those in opposite directions and use the exhaust from the gas generator to help steer the rocket which i think is actually really cool really really cool and simple solution all right so they're getting this will burn for another minute or so i believe booster performance continues to look good at this time so don't forget what they actually do there's no fuel cross feed between these boosters they just throttle down the center core so that it you know after it gets off lift off it you know helps aid and getting all that heavy rocket off the pad then they begin to fuel it they they throttle it down so they just save fuel in the center core so once they jettison the boosters they they ramp up that throttle back up on that center core because they saved enough fuel to basically have it burn for an extra two minutes now throttling down so basically you know if you think about it if it needs to burn for six minutes if for two of those minutes it's burning at half throttle or whatever do the math i don't know yeah so we have stage separation yes now watch this appointment has begun for a second you can kind of see the nozzle there we go we have ignition on the r10 s1 i'm sorry but that is so cool i know this rocket is old school but it is so cool and i think this is going to be the end of their webcast now because it's the national reconnaissance office i just think it's it's cool i like the way i like it here's a national reconnaissance office celebrates its 60th anniversary from its inception in 1961 the nro has used its incredible intelligence collection capabilities to meet the nation's challenges let's take a look back at the agency that has pushed the envelope of u.s space-based intelligence collection with courage and ingenuity okay cool so again they post these online uh this is probably literally the end of the webcast for them so i'm gonna answer some more guys questions um yeah um let's see um we kind of talked about this really quickly um carson lund again guys remember if you have questions about what you just saw get it in the youtube chat remember you don't need a super chat to get our attention uh if we have time today i'll go ahead and answer as many as i can but um carson lund a chat from youtube just asks uh would this rocket ever be human rated no it's it first off there's only three more now this is the fourth one ever fourth to last ever there's only three more this rocket will be completely obsolete um once it's done so of course it will never change it to make it human rated and it was never designed to be human radio there's actually quite a few considerations you know that would be drastic design decisions different engine different likely different fuel i mean yeah there was really no no chance of that vehicle ever being human rated and now it for sure will not be um this is a great question from s from stavato04 what makes the delta iv heavy better or different to other vehicles how is it special really good question so one of the biggest things is it flies currently flies the largest up and most powerful upper stage so the bigger your upper stage is you know the more potential it has and it's a hydrogen upper stage so it has um a lot of it's extremely efficient when it runs on that rl10b2 engine that upper stage can do a ton of work so you just have to get it up there it's so big and heavy you have to get it have a big rocket capable of putting it up there so what they do this means they can put a satellite on it um they can get it up into orbit they can get it out to its geostationary transfer orbit which is that elliptical orbit that takes it from low earth orbit out to the what is it 27 000 kilometers or 28 thousand kilometers or whatever i don't remember exactly 40 thousand i don't remember let me know far out there and normally a normal rocket like a you know falcon 9 or a falcon heavy or an atlas v they tend to just leave it there and then it's up to the satellite once it gets up to its apigee to its highest point to actually increase its own orbit with very low power thrusters and it can take months to actually get into its final parking orbit now one of the capabilities of the delta iv heavy because it has such a powerful and massive upper stage as it still has enough fuel left in its tanks after that geostationary transfer orbit to get up to apogee coast up there re-light its engine again and put the satellite straight into geostationary orbit it's just called a directed geo insertion it's really hard to do because you have to save enough fuel to be able to do that additional burn which is a substantial burn and uh yeah i that's i don't know if that's exactly what this particular mission required if this is a directed geo mission or not but it's safe to say that you know it's a capability like that that that the national reconnaissance office potentially needed so basically delivering the satellite straight to where it needs to go and get it deployed in days rather than months so good thing this thing took off today i'm really happy and i'm proud of of ula for knocking it out of the park again like we expect to see from them this is why they get paid the big bucks is because they they had a target date and they actually knocked it out of the park so um yeah so good question um let's see if they're going to give us any more updates likely we won't get anywhere else delta mission control at t plus 10 minutes ralph kesselman just confirmed the successful completion of the early phase of today's flight and all systems continue to operate nominally i'd like to thank rob for his support of today's show for more information about this mission please follow us on facebook and on twitter or our blog at ulalaunch.com we'll leave you now with another look at the lift off of the delta iv heavy rocket carrying nrol82 for the national reconnaissance office i'm caroline kirk and on behalf of the entire launch team thank you for joining us and have a great day eight seven six i always appreciate that they do these instant replays right away too so yeah we'll watch this replay and then we'll just answer some more questions for about the next half hour or so for you guys um this is a good question um sb uh sabuni says why did delta heavy choose the fuel they use so really there's pros and cons to quite literally every decision on a rocket you change one little thing and it changes everything right you can't just be like i'm gonna do this so likely they were trying to i don't necessarily know why go for hydrogen over uh you know you can get a lot more performance potential performance out of that's that's it for the broadcast um you can get a lot more potential performance um out of hydrogen than you can rp1 or any other fuel um it's it's the most for liquid fuel well it's not the most because you can actually use some there's some like tri-fuel options that are really high efficiency um but for like off the shelf fuels hydrogen liquid hydrogen has a lot of performance you can burn it um it just has a lot more potential energy so if you make a rocket in theory out of all hydrogen you would think it has a lot of performance now the problem hydrogen is so on dense it's so sparse that this rocket actually has like half the thrust of the falcon heavy because it's uh although it's huge and looks massive it's not nearly as heavy because the it has huge tanks because hydrogen is so sparse or so undense that it just takes up a lot of volume it's very volumptuous i don't know if that's correct but it it so the rocket looks a lot bigger than it is so if this was a comparable say falcon uh or a comparable rocket with um with purely even methane would be a lot more dense um or or rp1 it would be a lot heavier vehicle um so it's kind of this weird trade-off there's lots of decisions to be made um i can't speak for why exactly they made all these decisions for this particular rocket but yes yes i did say volume choice from andy b thank you for the super chat do you think that ingenuity could use its rotor wash to dust off the solar panels of opportunity well if there are no solar panels on op wait on opi oh no because it's way too far away opportunity is like on the even if it was within 200 kilometers which if you think about how big mars is that's nothing that'd be right next door the ingenuity's not flying over there well okay i'm not gonna say it's not because you frankly you never know with jpl knowing them this little thing that was supposed to only fly at best five times basically it might end up flying for like 30 years because they over engineered it and it's gonna just they're like you know what screw it let's let's do that let's fly over to another rover i'm not going to say it's i mean it is pretty much out of the question but i'm not going to say no i don't want to be peter becker to eat my hat here so maybe i mean no but no no but maybe no absolutely not um yeah uh okay so this is from um adam mish says do you happen to have any idea how this rocket capabilities will compare to the fully operational starship i feel like we did that in a video did we not do we not have a video that shows the exact um performance difference between delta iv heavy i'm trying to think of what that would be um but it's a different class of rocket now this is a heavy lift launch vehicle it's not a super heavy launch vehicle so that is i know that people go well you can compare the two but it's kind of like comparing a 747 versus you know something a lot smaller like a 737 you know there's they're different class of of of jetliners so um yeah i think um and by the way yeah that's true ula will basically be um you know delta iv will heavy will almost be done by the time starship's operational um so it's but i think i had that uh i might have been in the blue origin and the is the blue uh is uh new glenn the king i'll just type that in we'll probably find this article um i think let's see maybe not do we not have that as i don't know if we had that as a or just this well hi it's me come with me we're gonna go on a little stroll here through uh the engines thrust capability here we go so this is an old video of mine so sorry that it's ugly but uh yeah that shows how this is basically to geostationary transfer orbit you can see the delta iv heavy has a lot of capability there um and i think we also had a leo capability too if i remember right where was it uh i don't know old video not very well laid out not very good not very good but um it will be substantially less capable than starship except for to to geo it's similar because starship can only take what is it 12 or 14 tons to geo geostationary transfer orbit not to direct to geo because it has to lug around all the dead weight you know starship's dry mass is huge because all that landing hardware carries around it's it's cargo bay it's in order to do high performance missions like geostationary transfer orbits or g directed geo they have to do refueling so um it has you know of course has a lot of potential to do a lot more but yeah all right um this is ssg ssg stanford thank you um when we all we all know you are bob ross's secret love child when are you going to start making paintings these happy little launches that is very strange i've someone once did say i was the bob ross of something and i just had never recovered from that that is the highest compliment i think one can get but i just don't think that's anywhere true i think bob ross is a saint and i am just not i do want to do some paintings though i have an idea for a painting series that i want to do um i think that a lot of people forget that everyday astronaut actually started off as an art project and it wound up here which is weird but i growing up i always thought i was just going to be a professional artist happen uh okay i guess it i mean in a way no the photography i did was not i was not living off fine art photography ever on any stretch of the imagination uh so no i was never capable of being a full-time photography artist let alone a i wanted to draw when i was like growing up i just assumed i'll be a good enough drawer that i can just make a living drawing well i also thought i'd be at one point a scorpion trainer and another point i thought i was going to be a tractor when i grew up that obviously didn't work out and i also thought i'd be a prosthetic engineer so i've had a quite a slew of different options but i just most of my my pre-adult life i thought i'd be a professional draw drawer all right this is um hey tim i was wondering what you thought of the success of moxie on mars also we'll be covering over any of ingenuity's flights in the future a great question uh agent kevin so basically um those would be really boring streams because we don't get the video back from those flights there so far i think the most recent one was 50 seconds incredible huge milestone way beyond what i was hoping i mean i'm super happy with ingenuity success but those would be terrible live streams because they'd be like well we got data back that confirms it had flown i'll be like yay and then we wait like two days to get the data back from the actual you know to get a some kind of video file of it because it is on mars and there's very low bandwidth between earth and mars so no i will not be doing any of those but i am very excited about moxie now moxie is a in-situ production plant for making oxygen on the surface of mars a huge deal very very big deal and so far it's been going great it's been going exactly as planned it is just just like ingenuity moxie is a technology demonstrator it doesn't have any you know like mission critical purposes or any or any real thing other than to test the theory that they work right so um there is you know this is this is looking good for being able to produce oxygen for for humans on mars which is extremely extremely important or even producing um you know this is a little bit different um than producing um the fuel on uh for starship on mars because obviously mars you have uh you do have you have if first for starship on mars you have to produce uh liquid methane and liquid oxygen and they can do that using the sabati a process so by taking some of the ice water turning it into you know melting it into pure water splitting that up using electrolysis i believe and then injecting carbon from the atmosphere to make it into liquid methane and it also produces liquid oxygen which is uh or oxygen which is a total awesome side effect so yeah so but still moxie is you know some of that portion is there's a lot of similar chemistry so introducing it on mars is awesome and making sure that it all works out is super super cool um let's see here thank you very much for the membership so hampis says the delta iv heavy is the largest operational rocket but this falcon heavy is most capable right depends uh some some missions the um when reused falcon heavy is less capable by pretty much every metric um but when it's if it's expended it can outperform in most metrics i still think there are a few situations that the delta iv heavy will outperform falcon heavy um specifically i think that geo straight to geo uh metric where the upper stage does a lot more of the legwork we won't likely see too many fully expended falcon heavies obviously there will be some and it will be the maximum performance version of the falcon heavy but the delta iv heavy still has an awful lot of performance due to the you know the the high performance nature of the engines and everything like that so um let's see um this is from uh from vladimir says when we do some videos about russian rockets can't wait well that is a great question so i've talked about it a few times on twitter but um we are we'll be doing a big push here really soon the plan at this point is to actually i we've had so much work done on the video all about the history of the soviet and and russian and ukraine uh and just for prior so i'll just say prior soviet unions uh engines and all their their whole history and how they've kind of evolved and stuff like that we've had so much work it's been over a year of work even granted for the last like six months there hasn't been much work on it but i think we're going to just do it right and i think we're going to just film it in in russia so go to russia get lots of good high quality b-roll of a lot of these engines that are over there so we require a lot of cooperation um get out to kazakhstan uh maybe try to see braun and if not then at least we can see it in germany um but we're gonna try really hard to actually produce a proper full-blown documentary that is like you know full two hours with you know original content original interviews original b-roll um and just really not rely on these old grainy re-uploads on youtube you know try to get it so it's actually good you know like you know me in my obsession with with quality um a lot of the stuff in this video will just be at this point just cgi you know and like no casper's done an amazing job of making every engine we will be using that in the charts and stuff so don't panic casper we will still be using all of your renders that i that i hired you out to make but um you know at the same time there's nothing like seeing original or or maybe try to get some films and and re-digitize them so they're high quality you know i want to do this right and of course when this is done it will be completely free on youtube i'm not going to be selling it off to netflix or anything i really do believe that having information out there for free is uh is the best situation for everybody i think that works best for everyone so it will be free once it's done but it's gonna be a lot of work it's gonna be an uphill battle but i think it'll be absolutely worth it and you guys know me and my rabbit holes this is one of them um ozzy g um comments on the impact spacex is potentially having on the bokeh chica beach there's been recent backlash from locals brownsville native here ozzy great question that is a loaded question as you know um yeah the locals have had access to that beach since the beginning of time you know it is a um a local a local public access beach where you can drive on the beach there's no other commercial development anywhere nearby there's no hotels you can just enjoy the beach it'd be completely one with nature and it does suck that spacex you know with their mission is is tying up a lot of the time and access to the beach personally my personal bet would be what would be a great compromise would be to gain access to the north end of the beach from south padre that way even on you know certain days where they have a smaller you know if they're just doing some testing of like say you know a wet dress rehearsal or a static fire people can still use the north like two miles out of the five mile beach or something like that you know then they block off access from there on or something um so they'd either have to do a tunnel or a huge huge bridge or a ferry or something to get people to the north side of the beach but that way they they spacex can utilize that part stretch of the highway there you know close it all off have it as their own person i think this will happen personally in the next two or three years but i do think either spacex will have if they if they don't want to try to get you know maintain access to the north end of the beach i think the next best option would be to try to buy up a bunch of land um on on south padre island up north and have it be a public beach of the same size just basically you know square foot per square foot or acre per acre or whatever um and and have that be a public access beach because i do think there's um yeah i mean there should be you know just because a corporation wants to do something awesome doesn't mean they have the right to um you know there should be there should be a trade and a fair way of doing things in my opinion obviously you guys know i'm the biggest fan of spacex so i want them to continue with starships development as fast as they can and with as few hindrances as possible but it's not fair to the local community to be taking away access to a public beach so um yeah there's there's some compromise there and i'm sure they'll figure it out all right um from antonio uh love your channel are there are the launch parameters for ulaa the same as nasa and spacex so there's the i mean each rocket in particular has a particular set of things that would um you know cause it to scrub or things that they need to take off kind of on the pre-flight checklist but as far as flying the actual rocket uh the range safety officers are almost always the same they're actually usually air force range safety officers so when nasa launches um a spacex rocket or spacex run launches or ula launches at you know vandenberg well i guess sorry i should say when they launch from florida you know they use patrick's air force base there for the range safety and then when they're launching from vandenberg they use you know vandenberg air force base for range safety to make sure that the areas are clear so it just depends the actual perimeter you know different vehicles have different um capabilities for weather the falcon 9 is very prone to scrubs if the upper level winds are too strong because it's so skinny it could snap from big strong cross-directional wind changes that's something that delta iv doesn't have to worry about quite as much um as but then the delta iv heavy is more prone to ground winds compared to say the falcon 9. so um you know there's there's different different bounds for basically every rocket and everything so but as far as the actual range clearances that is done um they pretty much all abide by the same range clearances so yeah um this is from nico spacex uh is like apple in 2007 nobody believed in the iphone but apple only focused in the vision in the future they changed the whole industry this is absolutely true you know they were as an uphill battle when they first released the the iphone everyone's going this is so stupid and now you will not find a new phone that doesn't look and basically do the same functions as what apple innovated on for the original iphone um let's see um this is from tarandis says ula has historically remarkable accuracy for launches accuracy literally here in terms of correct orbits whether leo or out into the solar system you are correct so of course that is absolutely right that is one of the things that they kind of brag a lot about is how precise they actually nail their target a lot of times tori bruno the ceo of ula will put up the actual like a bullseye and show how close exactly they were in their uh and their altitude their their inclination all that stuff and how close and they're i mean they are like bang on and that is important because if you if you don't absolutely nail the destination of the orbit uh the the spacecraft he has to use its own onboard fuel which there are limited amounts of fuel for the spacecraft to be able to do any onboard maneuvering so fast to waste a bunch of its fuel just to correct the orbit um then you're you're shortening the lifespan of the payload so yeah um let's see um don't don't trip i'm not sure it may have been visible today i did mention it it i mean from distance wise absolutely you'd be capable of seeing it whether or not you'd spot the bright trail of it i i don't know it is obviously a lot more um you'd easily see it at night but during the bright day i'm not sure um so this is from um how you might have how you might have animated that this is a great question and i know i say that often but this is a really good one this is the topic of a video that i have begun scripting although it's probably gonna get pushed back quite a while we have a lot of other videos to get to first but why not use this rocket to send people to the moon instead of the one they are wasting money on well this rocket would not get the orion camp capsule to the moon it can't it cannot do it um the orion capsule is uh how heavy is it we talked about it in my sls versus uh starship video uh but we talked about how heavy the iron capsules are forget i think it's like 17 tons or um with its you know with its ex the european uh service module it's big it's really heavy delta iv heavy even though it's extremely powerful is not capable of getting that thing out on a tli or translunar injection it will just simply fall short it would not be able to do it and it's not human rated nor will it ever be human rated so um yeah that's that's why um connor says do i like joe barnard joey if joe's watching he knows he knows the answer to this because he can feel it in his heart you guys most of you probably know the answer to this because you also can feel it in your heart how who doesn't not only like joe bernard who doesn't love joe doberner i think that's that might be physically impossible so um the answer do i like joe bernard i don't like joe bernard i love joe bernard he's actually a good friend of mine we've hung out uh a couple times um he actually helped i shot years ago three years ago now um i shot a v a full series for facebook when facebook was doing like original series called facebook watch um so i did a series called spacing out with everyday astronaut and joe was was in that series so we hung out for like two or three days uh out in tennessee it was super fun uh we stay in touch often uh he hung out we hung out down in florida again and he's i'm trying to get him out to see a starship launch to see an sn launch and i think i'll get him out there uh and in which case he'll definitely be like co-hosting with me the whole time so it's going to be oh yeah there we go ryan is 22.7 metric tons it's a big old thing so yes i love joe bernard you guys hopefully all like him i had a shout out of him in the most recent video from his attempts at doing suicide burns with a solid rocket motor so yeah obviously a huge fan huge huge fan um okay so again i kind of touched on this a little bit everyday space um asking why are they not using falcon heavy for this mission wouldn't it be cheaper so again when they bid out this mission lots of these nro missions were bid out like five six years ago falcon heavy was completely still most people were saying impossible and that it'd never fly um so by the time falcon heavy flew and actually proved that it's capable of doing what it's doing um now it got into the newer bids that most of those bids just came up last year in 2020. so um falcon heavy in 2020 was winning bids for missions that we'll see in like 2023 2024 2025 but until then we're seeing a lot of these missions that were bid on six years ago before falcon heavy was ever even a you know a thing so a lot of it was like yes of course but again the industry moves kind of slow so um it goes both ways too if you have say the satellites shrinking and you don't need as big of a rocket to fly it might take a while for the launch providers to start making smaller rockets to just cater to those to those smaller satellites because you know you don't need to buy a whole falcon 9 if you're putting up something that the falcon 9's you know could launch 10 of them or something you only need to launch one so i mean obviously you can do ride shares and things like that but it took a while for the industry to start making small set launchers like rocket lab and this whole slew of other new small set launchers but but vice versa it takes a while if someone develops a cheaper rocket for the industry to catch up to that as well to catch up to those capabilities like when starship goes operational it's going to take like three or four or five years for the industry to catch up to that being like oh wait we can make a satellite as big and heavy as we want and it'll be cheaper than anything we've ever flown on before so why let's not spend all this time with research and development and all this extra engineering trying to shave off every gram let's just make it the size of a house and have it be three times heavier than anything we'd ever care to launch normally and we'll still fly it on a two million dollar rocket or you know whatever it ends up being it'll take a while though for the industry to shift to that so a first there'll be years where we're saying the same thing where any other rocket flying will be like wouldn't it be cheaper on starship and be like well probably but that was not an option when this when this contract was won so um yeah let's see here uh this is from carson says hey tim i'm crossing my fingers you are going to dear going to go on dear moon uh when will you find out if you are going also is your suit going to be orange i don't know about the orange suit that would be awesome i might have to see if we could get a custom suit that like pays pays homage to the old suit that would be awesome if that happened if we go to deermoon.earth um i don't know i i don't know the answer to this i just know from this timeline here uh it does say that the step four and step five we don't really have dates but basically the final interview and medical checkup would be by late 2021 so my guess is we will know by june who was chosen so in the next month or so yeah i i don't know i mean i have no idea who they'll choose you know what their what things they're looking for um and and the people going on dear moon i i have no idea um i do want to think that i you know i'm not i'm not the best that i'm not gonna even remotely pretend to be the best youtuber or the best science communicator or the best artist at by even any stretch of the imagination or the best musician i i'm not any of those things but i hope that my passion for what i do uh does count for something because i i genuinely absolutely love what i do um i love the future that we're living in um and uh it's ironic the first video i ever really put up on youtube where i'm standing in front of a camera explaining something was talking about dear moon before it was dear moon it was the uh falcon heavy flying people around the moon released it on february 27 2017 it was my first video really ever on like my first youtube video that wasn't just like a you know restream or something from something i did on twitch or something like that um so it would be irony coming around it would be full circle if it just happened that that that little step of making a little youtube video ended up being yeah that would be that would be nuts um let's see um oh this is cool from chef dwayne says your your father was a world war ii pilot flew the p-51d that is awesome um i believe that is very very cool president wait presidential uh unit citation amongst others that is awesome isn't the pvc one that's the mustang correct i went on a limb there and just threw it out there um yeah but uh i i used to love many um old-school world war ii uh planes so much so um this is from logan are you gonna be releasing some new t-shirts t-shirt prints soon yes we're going to have a handful coming out in july a really cool series that i'm excited about we're also going to be releasing a shirt for when we do uh what do we do around like when we kind of announce the russia trip so that one's going to be awesome that one actually i'm most excited about that's going to be the coolest shirt you guys have ever seen in the store i promise um this is from sam um eight hours for your space shuttle discovery yes uh very very cool that lego set is amazing uh you guys will hear more about that in a little bit uh this is from david how's it going david wells all three pointy ends looking good today it was phenomenal pointiest of ends all three matching pointy ends that's something that i like is that the fairing size is the same as the nose cones on those boosters all three looked great very very flamey ends too so very pointy and very flamey thank you david for saying hi um south armstrong will starship utilize centrifugal forces for artificial gravity on the way to mars this comes up a lot a lot that people are like it needs to have artificial gravity it's only going to mars for like six months maximum that's the normal amount of you know zero gravity experienced on the iss as far as priorities that's very low you know radiation is a much bigger concern on a trip to mars than the zero g aspect now granted one of the things that would be hard is after six months of zero g your body is very weak when you experience gravity so when you land on mars the question is with 38 gravity do you recover quicker because you know it's not quite as stressful as on your body it's not quite as strenuous you're can you just kind of get it like will you just be able to stand up and walk or do you have to have a full day of recouping once your vehicle is safely on the surface of mars and like just crawling around for the first day inside the cabin before you do anything we don't really know but you know we don't know if there's a direct correlation between the amount of gravity and same with like bone loss like is 38 gravity um meaning your bone loss and your bone density loss is 38 that of earth so you you know you experience it two and a half times faster than you would here on earth um or you know it's two and a half times worse or and it's the moon at one six is it six times worse bone density loss on earth and if you know our opposite end is zero g is x amount like is it linear does it you know is it like 50 gravity is like 99 as good as zero you know what i mean like so there's there's a lot of there's a lot of things there as far as spinning centrifugally i don't really see that happening any time soon it would absolutely potentially be an option with nine meters well no it's not actually an option at nine meters because nine meters you have to have a pretty vast distance to not get sick so even if you're in a nine meter wide spacecraft spinning uh through the center of it your head would be experiencing a different speed than your feet and you'd always feel like you're falling so you your brain and your inner ear will be like oh constantly and you will feel very sick so the only option to really with a starship of this size the current iteration of starship to be able to you know introduce artificial gravity is to actually tether two together and spin them like nose to nose and of course someday we might see something like that there's i'm not going to say we won't see that because that's absolutely there is some potential there now uh again is it worth it do we do we need to do that is that something we have to focus on to get to mars probably not that's probably pretty low on the list but as far as luxury items of going to mars yes sign me up for having some artificial gravity um that's really confusing how was i how was i seconds faster than the ula lightroom that doesn't make any sense because i was just pulling from their youtube feed so hmm that makes no sense maybe you needed to refresh on your end um thank you so much from um the shara says thanks for always converting fahrenheit to uh fahrenheit miles to centigrade in kilometers an hour keep it up love your content from sri lanka well thank you so much um hang in there i know you guys are are struggling out there a lot right now with with kovid that is some scary stuff so just hang in there stay strong be safe and and stay healthy my friend uh but yeah i always want to try to convert to uh to the standard you know to to metric standards um because vast majority of our audience has no idea what like 30 degrees fahrenheit is and how fast 100 miles an hour is whereas most people in the united states have some we use a lot more metric than people realize like we're in the us i think we're more familiar with metric system than the rest of the world is to the english system and we're the vast fast fast minority where like one percent of the population uses the the english system uh or imperial and everyone else uses metrics so i like to try to you know and and all these engineers you know they all use uh they all use metric all these rocket companies will use metric spacex doesn't allow any imperial anything like in their doors uh my friend makes kombucha or kombucha i don't know exactly how you pronounce it uh and he converted to 100 metric because he wants to be able to easily scale up like if they have a milliliter or something he wants more of he's like i'll just do simple math as if it was like now you had two cups there how many liters in a gallon you know like i don't know uh yeah so there we go um so deep quake why aren't we spending this kind of money on reducing the existing co2 in the atmosphere well uh elon musk and uh peter uh is it peter diamandi um with the xprize program are raising a hundred million dollars if you can solve how to pull co2 from the atmosphere so go for it like you can be making money learning how to extract co2 from the atmosphere um it's one of those life isn't this or that you know it's not like if we didn't launch this rocket today we would have put that money straight into carbon monoxide carbon carbon dioxide removal you know and carbon removal from that like it just doesn't life doesn't work that way if i buy a pizza today that doesn't mean that i took someone else's pizza right it's like that's just not how the economy and how the world works um there there are a lot of gray areas there's a lot of overlap and a lot of the reason that we know anything about co2 and its effect on our planet is because of of rockets and because of satellites measuring our atmosphere measuring the the height of the of the you know the of the sea measuring the height and density of trees measuring so many things that we know about our planet and about other planets as analogs you know to be able to compare against uh how all these effects matter say on venus with a runaway grass greenhouse gas effect or mars with virtually no atmosphere you know we can we can study those and it's because of rockets in spaceflight that we know anything about this so the answer i just don't i don't think it's as simple as we didn't launch this therefore we could have done this better i think it's always an evolution we need to be doing both things we need to be continuing to do our things but working on ways to mitigate and lower uh our our greenhouse gas effect you know on earth and i think rockets you know again of course if you type in rocket pollution on in your google search uh there's this article from this on this website called everydayastronaut.com how much do rockets pollute and the big reminder here for everyone that ever has questions about how much rockets pollute and what their you know what their output is uh the biggest takeaway obviously is the final numbers at the end of the video um as far as comparing it to the airline industry here's how much the airline industry emits for co2 and here's how much the spaceflight industry had uh emitted in the same year so and in the the airline industry is a tiny fraction of of all co2 so what it comes down to is even currently commercial airline industry airlining all airplanes commercial airplanes only are 2.4 of global co2 emissions they're not even a big as far as fish to fry don't worry about even the airline industry hardly focus on other things like road transportation and industry heavy industry focus on that first then you know maybe focus on there's a lot bigger fish to fry than even the airline industry that being said rockets current co2 output is 0.00059 percent so if we're worried about co2 emissions focusing on something as sparse and as as uncommon as rocket travel is definitely not the right place to start in my opinion not the correct thing to focus on let's focus on the biggest fish to fry the where you have the most gains you can make where you can you know if we have finite finances and finite resources let's focus on the ones that can make the biggest change uh with the least impact on our economy with the least impact on society where we can see growth in jobs and things like that so transferring some of the old-school ways of producing energy train these people into new jobs that can produce clean energy there's a lot of other options to reducing co2 if you're worried about it compared to compared to just like being like well we shouldn't launch rockets anymore because they pollute um yeah that's that's my question that's my answer to that um but uh yeah if you have more questions about that watch that video i did a lot of research on that video i'm quite passionate about that because it is something that people talk about all the time i know that wasn't your direct question but i hope that i still helped answer it um well thank you very much tyler uh this is um from bruxes may i request a video on post launch booster crash splashdown cleanup something i've never heard anything about that was actually supposed to be part two of this video about how much rockets polluted is what is their what's their pollution like on the ground how much you know what are we putting in the oceans what's that impact how much does you know but the truth is this the first video did horribly it did really bad um for the effort to youtube uh watch ratio it did horribly so i'm not honestly that uh motivated to make the follow-ups to these videos um i just have so many other videos that i want to work on so um that is something i would i would love it so i'd love to do some day in infinity shroud says the space shuttle wasn't fully clear it had a purplish glow to it in the cone of the water vapor um at some point yes in the the mock diamond and a little bit of it you know it because water obviously will have a little bit different spectral uh effect on on light compared to just what we're used to so that you know that's why the sky is blue so it's a similar phenomenon there but for the most part it was quite literally transparent because it was uh you know it's water vapor um thank you very much ethan uh let's see this is from david williams willis says this is the delta iv heavy's final flight as the largest operational rocket its next launch won't be until 2022 and by then sls and starship will have flown i you're pro you're absolutely right i mean this is barring some major setback in either program or both programs um this might may have been the last time in history that the delta iv heavy carried the title as the largest operational rocket um so yeah sls will be king uh well it depends on sls which will launch first orbital sls versus starship i mean anyone's bet at this point it's hard to tell with starship because it it's just going on a you know you can plot the course of sls very very um very easily you know like it's very predictable you can plot its chart there's there's published dates there's milestones that are like written in in stone with nasa and and the you know the companies building uh the sls it's a lot more written in stone sls on the earth i mean starship on the other hand is like you know we hear really really really aggressive timelines on the rocket uh you know i think it was in 20 at the end of 2019 elon said starship would be orbital in six months um at the beginning this year they're saying in july they're hoping to have an orbital i still don't quite buy july orbital just seeing how much more has to be done um with the pad and the infrastructure and with the rocket itself you know obviously we have to have a successful landing and then see sn20 and the booster and all that you know all the things i don't see it going orbital in july but this year still might not be out of the question i don't know it's anybody's guess at this point uh mr uh muskrat says can the engine nozzle type of blade of regeneratively cooled etcetera have an effect on isp so the specific impulse you know i i think it does i think it can um i don't but i yeah um someone needs to uh double check i don't exactly know how or why because you are ejecting mass so it does affect it does affect the isp but i i can't think of it's an improvement or a i mean you're you're dropping you're dropping mass so you're lightening up the rocket a little more i know that's not a direct correlation to the isp but overall efficiency of the rocket but um that's that's a good question that's a little bit beyond my pay grade and i'll happily admit that i don't exactly know the answer but maybe that's something i'll try to ask around about musical wolves how many pounds of propellant is needed for engine chill for starship that's a great question too it's beyond my pay grade i don't have the exact answers for that but they likely you know they flow it pretty you know there's a decent amount of flow going through the turbo pumps um and the and the walls of the nozzle and everything when they're doing an engine chill down um how much i'm unfortunately can't say now likely with with it being liquid oxygen the cool thing is they can just pump it out and they can continue to to back pressure and keep filling up the tanks on the ground so while it's connected to umbilicals you'll oftentimes see them topping off liquid oxygen right up until t minus one minute so those prior you know 10 or 15 minutes of engine chill are usually done while attached you know while it's attached to the ground system so um you know then it just turns into gaseous oxygen we can reclaim it later no big deal okay so um let's see um let's see this is interesting domi says can orion technically launch on starship if sls isn't ready and the belly flop is unsafe i mean again when you're making decisions about what vehicles flying you know what what rockets launch what vehicles and things like that there isn't just uh you don't just copy and paste it's not kerbable space program we can't just say like pop it on there no big deal there are a lot of considerations when building a launch infrastructure even like how tall is the tower you know right if you built this ground system and how do you get crew onto the tower we've already spent over a billion dollars on one of the mobile launch towers i don't want to spend another billion dollars trying to build a slightly different height tower because now we have a different place for the crew to get on when it's attached to a different height rocket and all these all these other considerations i mean i no i mean it's just not really an option sls will fly it will launch orion that's set in stone um how many times that's maybe more up for debate will it be i think the question in my head is less than eight or more than eight times um that's my truth i think that's kind of the reality of it um that's kind of my number is about eight but um i'll also be shocked if it doesn't fly three times i'll be shocked because there's hardware out there for three so yeah um i i just don't think we'd see that you know i think nasa would totally pivot if if something is not if there's something completely flawed with the orion and sls system um i think we'll see nasa massively pivot personally um tucker m says as much as i love spacex i realize expendable launch vehicles still have a purpose in space exploration i believe that's a key to how we'll make human life multi-planetary go delta iv heavy well tucker i i really appreciate that sentiment um but i still i do personally believe the future of space flight and the future of how the industry is moving is into cheaper and reusable launch vehicles um i think that's a trend that will just continue to grow i don't see it going back in the opposite direction it's a shame that the space shuttle wasn't didn't live up to its full promises because i think it put left such a bad taste in it in its mouth from you know because it was it's an incredible vehicle like let's not kid ourselves the space shuttle was amazing but it it didn't quite do everything it was supposed to do um in you know in the timely manner and as much as it was supposed to cost and everything and uh i i wish that it had done better or that they had evolved it to do better and live up to those promises more but i don't think that expendable launch vehicles really have much place in the future in 15 years i'll be shocked if there's fully expendable launch vehicles i think there'll be at least 10 more years of expendable launch vehicles in existence but i don't think um by 2035 2040 i just don't think there'll be any any expendable launch vehicles but i think they're you know reliable like there's a lot of reasons to still be using them now because the development cost and the risk of trying to rely on a fully reusable vehicle is still quite high so until that is is done um yeah thank you very much martin um from uh let's see this is from uh jasminder uh hey tim what if you just create just one new channel for live streams only like everydayastronaut live something like this and channel for main videos only i just don't see the point of breaking them up personally um all you're doing then is diverse like you're you're splitting your audience and it just feels like i don't do enough on on the main everyday astronaut channel you know already as is i want to do a lot more on this channel life has been nuts this year so far um i want to be able to focus more and more on making content um and uh i feel like just splitting channels all it's doing is lessening each channel's impact so um yeah that's that's kind of why um from martin says uh would there be a benefit of sideways had extra fuel and pumped into the main booster at a late stage more fuel after separation yes uh so fuel crossfeed is actually advantageous because you can run basically all the engines at a higher throttle setting minimize gravity drag there's some there's some benefits there to actually dumping your side boosters slightly earlier and having a fully fueled center stage you'll actually gain a decent amount of delta v you'll gain a decent amount of extra performance but there's a lot of extra complexity in doing that like that's not a simple that's not a simple thing so yeah good question though um silent uh why is the delta iv heavy rocket obsolete so expensive and what makes vulcan cheaper so one of the things is i mean it's three cores so you have a lot more rocket to build um the rs-68 is an engine that's there's only one of them per core so they just don't make a lot of rs68s there's no reason to make them cheat you know there's not a big enough scale of production to make a cheaper engine they're large i mean that engine attaches to a five meter it's a large engine it's a really really big engine you know and i think people forget how big and expensive that is now um vulcan will only be using two main engines it'll be using the be4 which is going to be a more mass-produced engine of course produced by uh by blue origin um so assuming that it you know lives up to its goal having having cheaper those engines will be a lot cheaper than the rs-68a they um these will be using a lot cheaper fuel methane is substantially cheaper than using liquid hydrogen so right there's another big step in the right direction they're commonizing a lot of their parts in manufacturing so that'll make the rocket cheaper too and hopefully just by increasing their launch i mean i think i think vulcan's going to be able to compete with the falcon 9 almost on some missions and some performance metrics um for price because it's is uh they're hoping to get it down to be that cheap now the problem the thing is the rl10 upper stage engine um there will be two on vulcan most the time right or is it just one up to two um is really expensive too really really expensive but they are making steps to make that cheaper but yeah um south armstrong we talked about that earlier sorry i went into it pretty deep uh but thank you for the question hopefully you caught that answer um from matisse if starship full stack becomes operational reliable why would nasa go through the trouble putting a starship lunar lander on top of sls um no it's not ever going to go on you need to watch my video um just type in on google artemis versus apollo and hopefully one of the first things you'll see uh everybody astronaut.com artimo versus artemis versus apollo i also of course have a video version of this as well definitely watch this video because we explained that the lunar lander flies completely separately the lunar lander will launch on on super heavy and it'll meet it out there in lunar orbit so this video was a year old but it actually lives up to the only thing we didn't know is which lunar lander they're going to choose but we went through kind of most of the options on how to get it out there how they're going to meet in what's called near-rected linear halo orbit we kind of go over the the capabilities of the sls versus the saturn v the missions and how they actually look so it's definitely worth check this this article out you'll actually learn quite a bit about how starship will fit into um into the uh artemis program how it fits alongside the sls rocket and uh yeah hopefully it answers your questions so yeah um thank you very much uh gadget merc um this is always confusing to me uh mookie machine i so as you saw on the countdown they'll just hold four minutes on the clock and they'll continue doing things and do this poll and the all that stuff and then the last four minutes are the part that is fully automated so that's all that's automated in their countdown the rest of it is not so because of that they don't want they want some basically wiggle room for human error and be like all right you know how is everything going bob are you good over there yep we're looking good here you know kind of doing things manual with leading up to a certain point so at about t minus six minutes they'll close out the go no go pull and then at t minus four minutes is when they go into the final uh terminal count of the rocket the rocket has taken over the rest of the countdown and the rest of the the the whole system so at that point they can officially set the clock to be t minus four but it is kind of confusing um let's see joe is using ozone as an oxidative too crazy for even elon i love to see a video on uh the crazy potential fuels oxidizer like the tri-fuels you mentioned that'd be a good idea actually like what is the yeah um i don't know about using ozone as an oxidizer i don't know um yeah good question i maybe that'll find its way into a video in the future spaces these enthusiasts want to know is there a plan or are there plans for a ula reusable rocket yes the vulcan this middle one here you can kind of tell it's like the love child between a delta iv and a atlas v does have plans for engine reusability they are planning to drop the engines off of the the booster and then recover them and swoop them up out of the air with a helicopter kind of like how rocket lab is going to be catching their electron rocket with the helicopter and also their upper stage is actually designed to do kind of like what starship's doing where it's going to meet up with another upper stage transfer all the fuel over and they can actually refill the the upper stage um and hopefully be able to use those up reuse those upper stages in orbit which is key because getting them to orbits the hard part once they're in orbit you have a lot of potential to to do a lot more performance so chris scorpio trainer class fund thank you i my dreams will come true someday um yeah uh so abraham wants to know if there's any concerns for boaters on crew one splashdown i think they'll have it figured out this time i don't think they understood the implication of landing that close to shore last time i think they'll have it taken care of this time um cameron why bring moxie to mars just simulate mars co2 here you can run simulations all you want you can do you can simulate the whole rocket launch why we can simulate living on the moon why not just why ever go to the moon there's nothing like doing it in you know on the actual planet or or in the real environment that it's going to be in simulations are great um obviously starship has had simulations so far sn8 through 11 of how it's supposed to work hasn't worked yet so there's nothing like actually flying it and using it same thing for moxie moxie's best used and you can only really test it out and prove it out on the surface of mars because you just never know all right um let's see well we see a fuel depot in leo and will they get rid of helium um so i i i'm kind of anti-fuel depot for the most part because um the smartest thing to do a fuel depot is just literally you're you're paying the mass penalty of having the skin up there already the other option is you have your rocket that you want to be fueled be up in orbit and then you fuel it up and that way you aren't you're never just left with just the the massive the dry mass of your fuel depot you you know you're if you're launching up and then filling it up anyway why aren't you filling up just the ship that you want to go somewhere further you know if you need that capability instead all you're doing is you're just letting it sit up there boil off and you have the dead mass of this fuel depot so you might as well just go straight to refueling up your upper stage so um so armond wants to know and discord how are they going to be refueling the starship moon lander let's just fly starship tankers to the moon now that i don't actually know um yeah uh they they likely will be uh i don't know if they're gonna be refueling it in an elliptical orbit you know and or if they're sending tankers up to near rectilinear halo orbit or to orbit around the moon i don't actually know that's a really good question and i think we'll have to learn more about it i'm going to wrap this up because i do actually want to catch the ns uh the sn15 static fire so josh um do you have a remote live feed for when you're not in texas sn15 ground venting as of right now um nope we don't do that we're not doing that we still set it up each time um i will be covering s50 or sn15 when it does launch though i promise um but not static fires i don't really do that uh matt horkham uh do you worry that spacex's market domination will turn it into a bloated monster like ula has been i think it's uh it'd be ignorant to claim that boeing don't have a history of radical aerospace development that's a loaded question there matt um i mean there's always room for competition i mean the spacex might dominate for a while but if they get to if they rest on the laurels too much and get too greedy about it there will be other competitors that will come out and knock them off their high horse similar to how yeah kind of like ula and boeing have had kind of space dominance for the last you know 20 years for the commercial market in the us and now they're kind of getting kicked off of that the high horse a little bit so yeah i mean that's a risk but that's what the open market is for brian claussen hey tim rocking out uh waiting for the ula launch your last spacex belly flap video is great cube of great work thank you brian thank you for saying hi always good to hear from you thank you so much max just caught up on the stream after the launch while those arms really heated away thanks for the awesome coverage well thank you so much for watching with me max um go for launch 13 why is spacex already testing sn15 before sn12 they scrapped 12 13 and 14 they didn't have a ton of hardware for them they uh they were obsolete hardware though they were already moving on by sn8 once sn8 launcher were already like oh we got to make some changes a lot of the changes from eight and nine we're seeing in sn15 so they started making hardware changes they were building them before they were ready to test them basically and we knew this is a problem when you're building them that quickly at some point you're getting so far ahead of yourself where you want to make changes so that the vehicles that you build if you get too far out before you test these new ideas and have new problems crop up you're just testing obsolete hardware which is pointless so that's what they're doing they're going from 11 to 15. um nope thomas no views i'm going to sign off here so i can watch myself on some other channels um david willis um while we're on top of sls i it just passed miami it's getting really close to the ksc that is very cool i can't wait to see that baby uh get into the vehicle assembly building start stacking i hope i can get some footage of it someday um and i said snope no static fire views guys not here um gadget thank you so much and um from matisse i feel what was your i feel of course they fly separate what was that about though um oh yeah about sls carrying starship yeah totally separate guys that's i got all caught up thank you so much for all your awesome questions and thank you so much for your support um that's gonna do it for me uh i'm i'll see you guys next time hopefully for sn15 i'm working on some other stuff in the background so maybe you'll have a no i don't want to promise a video anytime soon because you know how life works i'm going to hop off though so i can watch probably pull up our friends at you know nasa space flight or lab padre to check out if the static fire goes well of ns15 but that is going to do it for me i'm tim dodd the everyday astronaut bringing space down to earth for everyday people goodbye everybody [Music] [Music] so [Music] so [Music] foreign [Music] [Music] [Music] [Applause] [Music] [Applause] [Music] [Applause] [Music] [Applause] [Music] you

Channel: Everyday Astronaut

Views: 329,165

Keywords: rocket launch live, live rocket, tim dodd, everyday astronaut, Tim Dodd live, Everyday Astronaut live, Live rocket launch to space, orbital rocket, Starlink, United Launch Alliance, Delta IV Heavy, ULA, ULA Launch, ULA Rocket Launch, Delta IV Heavy Launch, Tory Bruno, NROL82, NROL-82, Delta IV Heavy launch, Delta IV Heavy rocket, Largest rocket, Largest rocket launch live, SLC6, SLC-6

Id: 4C_HRGrtBjg

Length: 105min 2sec (6302 seconds)

Published: Mon Apr 26 2021