Building A Wingless Airplane - And Flying It's Tail | Scrappy #49

[Music] so it's physics math and engineering machine it draft it build it test it break it every time something new gets built the entire world advances laying in bed at night it's designing new parts designing new suspension designing new wings that's so close i just put some degreaser on i got to wipe it down but you can see this is all carbon um it's going to need virtually no body work at all we're going to put on just heavy primer and i think that will be all i need to do is a heavy primer sand it down and i really don't think i'm going to have any filler at all at this point so i'm really happy with how this has turned out i'm going to quickly wipe this off several times so i don't get any dust coming through we'll just keep layering layer until it comes off completely clean put some fruits uh can't talk primer sand it paint it let's get to work all right guys i'm super excited that so many of you had interest in my little spar sample test so i want to give you a quick update i really had just made this set i thought i'm going to just cut up 10 or 20 maybe a couple dozen tops of people that might have interest and you guys blew my mind i mean hundreds of you bought these sets so i want to give you an update there were none built there were nothing to ship right away but i am working on them i actually am super excited because i have my kids working on them so my son's cutting them up and the kids are helping d burm and sand them and get them ready so we are working on them but so many of you ordered that i decided to go ahead and order some more spars of the different sizes the set is a full three set of scrappy spar scrappys rear spar a carbon cup uh standard cub rear spar but i wanted the whole set to go out i didn't have enough to do that for as many of you that ordered um so anyway i ordered more they're on the way i'm going to start shipping them right away i'm going to ship them in the order i get them made as fast as we can and when i run out of the parts that can finish out what i have as soon as they show up just be patient like pretend you didn't order them or something whenever they're done i will ship them i promise i'll maybe throw in some other stuff maybe some draco stickers and little kids tattoo temporary tattoos i don't know i'll i'll do something i'll throw in some extra stuff for it i went ahead and made up a little postcard of scrappy i put all the stats of all the testing both uh solidworks analysis and the actual testing differences and i'll throw that in a little kit so thank you guys is what i'm trying to say and thank you for being patient because some of you are going to get them immediately and some of you it might be a while because some of the aluminum places are saying they might not even ship for a couple of months no problem if you want to send an email and you don't need them happy to send the money back but if some of you didn't see it and want to buy them i'm going to make enough and just send tell me get on my page order them up so i get a final count anyway um also i just got back from sun and fun and oh my gosh you guys are so awesome i met hundreds of people there if not thousands um and so many of you made your own t-shirts scrappy t-shirts back to work uh draco i i couldn't believe meeting all of you was just an absolute blast and it worked so good because i get messages um in various ways i get emails to four different companies of people reaching out messenger and facebook and on youtube and i literally receive thousands of messages and i try my best to read them and it's physically impossible i tried something one day i said i'm gonna try and catch up on at least 2 000 messages i was behind and i tried replying to all of them what happened is i got about 200 in and about 195 of you replied which meant that i started going backwards and a lot of them had four more questions and so my 200 goal went to 800 more messages to read guys here's what i want you to do please keep sending me messages i will do my best to read them but my apologies i know some of you have written 5 10 15 pages and more i can't physically keep up but i will continue to try but if you come to an air show that's when i'm setting aside work i'm setting aside everything else and i just want to visit reach out at an air show come up and say hi in the meantime i'm going to read all i can thank you all for watching thank you for those of you who ordered these my kids are gonna be super busy so they already know how to work let's make them work thanks again you guys know the drill i'm gonna get back to work [Music] i'm super excited to finally be done this is the air intakes the rubber boots are on the tie to the front cowling it's three parts the air filter goes in here but i'm going to go ahead and attach these two pieces come apart at the middle put a little bead of rtv around the joint so it literally will be airtight and then this part if i need to work on the engine comes off independently and these will stay on until the point if i need to do an overhaul pop that little light bead of rtv that connects it to the engine and pull them right back off this comes off that's where my oil fill with my oil funnel is built in so let's get it installed super excited it's going on for the last time back to work hey guys i need your help if any of you are artistic stick around till the end of the video after the end credits if you want to do something with me and i'll give away some prizes thousand bucks and cash a few other things got to work okay guys i'm going to quickly answer a couple questions some of you had the air filter going into scrappy some were worried it might not be big enough and most of the people that ask that question is coming from an automotive side simply 780 cubic inches on an aircraft only flows the volume of about 350 cubic inches on an automobile the difference is six to seven thousand rpm on a race engine in an automobile in an aircraft i'm running 2700 so i'm running half the air volume you would expect add on top of that then in an aircraft you get the benefit of always flying around we actually make ram air pressure just from flying so you size an air filter not like a car you size it as aircraft would and there is a big adjustment for that so i do know that this air filter works on this engine this is what i used to set some world records three closed course world records in my race plane i pulled it out of it's also run at reno and i did four measuring devices to measure the air ram air pressure inside the upper deck pressure plenum air right before the air filter air right behind the air filter to measure the delta between the air passing through and how much pressure i lost right there and the creating a vacuum and then also right inside the primary air box and the traditional one that's right at the intake of the engine itself that displays on the engine so i have a box that measures all those locations so i always check that do a mass airflow check the next question i have is do you have a drain for water so for a lot of you worried what happens if you fly into rain well it's amazing aircraft engines they fly into rain all the time and what has happened the water actually just flows in goes through the air filter and the engine just eats it up and that sounds a little crazy but we aren't taking the garden hose and putting it in it's only taking in what the max rain can allow but as an added backup for safety of if i was washing the plane or if i went into extra heavy rain i go a little bit beyond then i always put a drain in the bottom trap that i created inside the intake of the filter and there's a drain and it drains out the bottom of the plane and since it's on the upper deck high pressure side of the filter if water does go in there in flight i have air created pressure pushing and it just will spit the water back out at high velocities i do like to have a secondary way to push the water out that a lot of aircraft if you fly in the rain the filter is literally right on the front of the airplane and that rain just goes through it and if you're a race guy you understand why that doesn't hurt it because in racing if you want to cool your engine down you inject water into it you literally inject water the next thing i have people ask about is what about an alternate air source that is absolutely going in this is the start of it um this is so that where the air comes through the filter right now i've got it just piped into the engine to do some airflow testing and ground checks but that bend is coming out and there'll be a sweep carbon band with a bypass secondary carbon tube this one that will go to a spring-loaded door that spring will be sized so that at full power under all conditions it stays shut and all the air is coming through the filter however if the filter were to clog up with dirt or that's unlikely it means i wasn't doing a good job at maintenance but that could happen or the more likely scenario which hopefully will never happen with scrappy i'm not building an ice-capable aircraft but if you inadvertently flew into ice and you had ice and snow crushed up and clogged the filter you need to have an alternate air source so that will come through this tube on a bypass out the right side of the engine with a spring gate and the only time it will ever open is as the filter starts to clog if it starts to clog the engine will create a vacuum and start to open the spring rate door only what it has to so it can keep pulling as much air through the filter as possible that air for those of you are wondering is coming from the low pressure side of the engine which is below the cylinders after the air has gone through the cylinders to cool them now there is now a little bit warmer and it comes from under the engine on the low pressure deck side that's my alternate air source thanks for asking the questions we'll get it done later you guys know the drill much work okay guys we're getting closer i just put this on and finished the last final little bit of sanding we got lucky on this one it turned out really good i'm super excited about it it's unbelievably lightweight it feels um light enough or lighter it's just the way feeling such a big cowling like it came out of a mold completely we're having a cowling that was 20 or 30 molds and pieces put together and then sand it all out and and uh we sanded out all the joints and the overlaps and then we bagged layers over top of it to suck it up and get the thickness it's dang near accounting right out of a mold so i'm really proud of it super excited to get it done it's crazy amount of work to get to this i don't recommend it kind of sucks but in the end today it's worth it i'm really happy i'm gonna do a white base and then we'll put some silver on it a couple logos on it you guys know the drill all right guys i'm getting ready to put the final touches on scrappy we've already test run it drove it all over the airport and i've got all the lines ran and already done obviously oil lines gas lines however i always like to do it one time with just some cheap quick easy hoses made from a local house of hose specialty style shop but it's not what i really want to run ultimately on the aircraft long term but so many times i'll do it and then i want to change the length a half inch or quarter inch so i like to run it one way and then when the whole plane's done ready to cowl up i go back through and look hey can i save two inches of line here and save some weight so i called up aircraft specialty and they make custom aviation lines so here's some oil lines i'm changing out these are fuel lines they're fire sleeved and protected and uh having a abrasion resistant edge so and then these are super cool these are brake lines you can see right down here i had to use a couple different fittings but if you look right here um they're able to do adaption where i actually have one size fitting on this size of the hose and a different size on this one they can adapt it in my hose itself and save me several ounces per line so i'm gonna get these installed on my brakes the other line's hooked up we'll tidy this up then we'll throw the cowling on all right guys so i wanted to talk a little bit about this part this is simply a naca it goes on the bottom of the cowling right there and you can see when i built this i made two inlets the purpose of that is oftentimes one of the problems with heating and cooling is that they pull nacas from different locations or they have two nacas and even if one's right next to the other the air the way it's coming around the fuselage off the prop puts more air in one nacca than another so it still works but doing two holes through a single naca for your heat and your air allows those two lines one will pass through all the heat systems in the exhaust the other line goes to the fresh air but what's critical is when they come together in my mixing valve where i can adjust hot and cold the pressure because they're coming in the same location is equal and if you have equal pressure then the dial that goes from hot to cold adjustment is very linear and flat sometimes a lot of people do two different knackers and sometimes in two different locations or on the same location opposite sides of fuselage but because the air swirls one direction off the crop you might have to turn the dial all the way to hot and if you barely move it it goes ice cold because one nacca has so much power when the two blend it sends the pressure back the other way i put this on the belly because the bottom of the cowling is tipped up like that so the air goes straight into it and gets the maximum blast so that's the bottom and i want to introduce another helper working we got ron over there tinkering away this is my oldest son dylan [Laughter] he just got a tattoo right here and i just smacked it [Laughter] this is my oldest son dylan he has been helping out recently sanding on all kinds of parts he's really good at doing fine line tape lines for paint it's been awesome having him tinker away over here but my oldest is now helping me out he's working here full time so if you thought we got a lot done before i got another payday on the job back to work [Music] so [Music] all right we're down to the last of the paint so put a clear coat over the metallic silver put on my stencil for the black so i've got flat going on my life combing right here one more layer of black on my grill to my intake vent for the hot and cold air so i'll spray the two black strip the plastic off and then clear everything at once including the top cowling which is out there ready to come in i'm leaving it out because it doesn't have any black on it but as soon as i get that sprayed i'll bring it in pull it off clear it and finally be done with paint on scrappy other than paint on wings but the plane will be done that's working [Music] [Music] all right guys we're getting closer the cowling is finally painted so i'm super excited to get to this phase now we're going to start in uh attaching the lights this should be a danger snap fit and it is so we're going to stick in this light this light this light we're just drilling out right now all the holes for the nut plates and you can see this will go right there the air vent nacas will go here and another grill over there okay guys what i'm doing now i've got two done one to go mashed off an area now the lights are bonded in just with silicone and they're put pressed into a double step so they've never come out as it is but as an added precaution i could put glue down in beds with little bolts and washers to hold it this is a little cleaner i like this better this is a polyurethane windshield adhesive um you got to have a special gun to push it out it's really strong the downside to using this is my connection is if i need to replace the light it's going to take me probably a half hour to get it out the good side to it is there won't be any vibration whatsoever it's completely watertight and it's never going to move the other nice thing about using a polyurethane bond in like this especially where i've got the front so flush that and completely sealed is that i won't get that vibration chafing that creates that black powdery dust around the light lenses um that always just looks dirty so this is absolutely permanent i would never do this with a light that isn't led these are all led they'll probably outlive me so this is something i feel very comfortable with but if i did need to replace it a little bit of screwdriver work on the back pull all the polyurethane off pop it out from the front just breaking that silicone seal i'd have to just clean it all up and then re-bond it back in it really would be a half hour maybe 45 minute project but this as it is is completely permanent back to work [Laughter] all right guys it's officially time to call up scrappy for the first time fully painted put the grills on it i'm super excited and look how cute scrappy looks really low to the ground this is my how to get in a cup easy way it's 20 inches lower we just dropped the suspension down so we could call it up which has been nice to work on i put it way up high to work underneath it drop it down low to work on the top but ron are you ready yes for two months let's call it up and hot rod around the airport for a minute make sure everything's good back to work yes [Music] so [Music] [Applause] [Music] [Applause] [Music] [Music] [Music] [Applause] [Music] [Applause] [Music] [Applause] [Music] [Music] [Applause] [Music] [Applause] [Music] [Applause] wow it's a good day i'm gonna put some wings on this bad boy [Music] [Music] all right for those of you who stuck around clear until after the credits thank you for watching and following along i'm actually trying to enlist some support and help from my design creative friends out there so here's what i need i'm trying to get some more shirts hats gear out of the request of many people asking i really haven't done much with it so what i'd like to do is enlist your help to try and come up with fun ways to get scrappy new clothes and for other people who might want gear uh submit any ideas you have drawings artwork to design at mikepady.com send it as a pdf file so that we can use it but here's what i want to do i want you to send in any ideas you have any artwork you can come up with you can grab the artwork off my website of current stuff i have i'll put everything out there grab it use it anything you can find online go for it twist it manipulate it i really want your creative ideas in it so i'm trying to come up with these shirts and hats and if you can come up with the ideas and i end up picking them and putting them on my website and i'll try and pick a bunch of them if they go on my website i'll pay you a hundred dollars for every idea i use so i don't care how many times you enter take it all i it'd be great to have your ideas also i'm going to make it so you can make a bit more than that i'm going to have all the ideas when i get enough of them collected i'll put them on one of these youtube videos show it all off tell people to go to my page check it out and that way we can let all of you decide what gear you like the best and whatever sells the most i'm gonna send a thousand dollars to the first place 500 to the second 250 to the third and a bunch of other little gifts for people who helped out along the way and if it's the same person wins it all i love you you're helping me out i'm too busy building planes to do gear so help scrappy get a new uniform and uh i appreciate you guys i love you all you guys know the drill i think about to work [Music] you

Channel: Mike Patey

Views: 967,360

Keywords: Air racing, turbulence, Draco, wilga, mike patey, STOL aircraft, Bush Flying, Flying Cowboys, Mark Patey, Mike Patey, Pylon Racing, Patey Twins, Fastest Turbo Prop, Turbine Lancair, Turbine Legacy, Hillside Landing, Crosswind Landings, Water Landings, Water ski airplane, Best tugs, Grip lock ties, Back to work, Carbon Fiber Molds, Carbon fiber layout, how to carbon fiber, custom parts, world record aircraft, experimental, super cub, engineering, how it's made

Id: sde-kKkOfgI

Length: 26min 18sec (1578 seconds)

Published: Sat May 15 2021