Bladeless Drone: First Flight

hi I'm Stefano I've been flying some small drones for a while now but naturally I wanted to look to larger faster Jones but my dad always thought that'd be way too dangerous check that out how to emit he was right Jones are pretty dangerous that's when I started to do my research and with the prop guards prop guards cover the outside of the propellers just to make sure that your hands can't get into them but they leave a lot of open space so it's still not that safe [Music] [Music] that's a nice urn to look more abducted Finn's little ducted-fan drums are cool but the bigger they got them working so that's when I thought there had to be something better so I thought embed the ducted fan inside of a long tube this keeps your hands from getting in and getting into the blades so now your hands can't get caught the environment can't get caught and the entire drone is much safer getting into plastics and patients put in the end once I finally got applying it fooled me [Music] here's a demonstration of how safe it is to fly right next to people [Music] I have to admit but totally awesome [Music] so I'm pretty excited with the way the drone turned out after you year of hard work it's safe to fly around both people and objects I hope you liked the video and thanks for watching [Music] [Applause] [Music] [Applause] [Music] [Applause] [Music] [Music] [Music] [Applause] [Music] [Applause] [Music] [Applause] [Music] [Applause] [Music] [Music] [Music] [Music] [Music] you

Channel: Stefano Rivellini

Views: 2,973,858

Rating: 4.822793 out of 5

Keywords: worlds first bladeless drone, commercial drone, industrial inspection drone, drone, bladeless drone, confined space drone, vtol, Filming and aerial photography, disaster management drone, rescue drone, Geographic mapping of inaccessible terrain and locations, Building safety inspections, Law enforcement and border control surveillance, military, ducted fan drone, ducted fan, dji, quadcopter, drones, confined space, industrial drone, fpv, quad, carbonfiber, composites

Id: 5L6FSdUmEpg

Length: 5min 48sec (348 seconds)

Published: Sun Oct 14 2018

Reddit Comments

[u/syntax_erorr]

...But it has blades, just not exposed blades.

[u/CakeComa]

Internally it seems it still makes use of blades.

[u/Aepko]

Thats a lot of extra weight

[u/blady_blah]

I think the real question is one of efficiency. How much flight time are you trading off vs a comparable duct-less design? How does this compare with just building a cage around the traditional blades? That seems to be a simpler competing strategy for building a safer drone, but again you're trading off flight time for safety. So what's the more efficient approach?

Not to knock what you guys did, because it's damn cool, but I think this could be much more interesting solution would be to use one larger engine and control how much thrust goes down each tube. That could allow for a single larger bladed motor (with blade guards) or a jet engine and have advantages over a four motor design.

This is really cool and you guys did a great job on building it!

[u/RalphNLD]

How do this drone achieve yaw control?

EDIT: to elaborate, on a normal quadcopter this is achieved by using the props' torque to yaw. Two props will turn clockwise, while the other two will turn counter-clockwise. By varying the thrust to either the clockwise or counter-clockwise props, it turns in that respective direction. This is the same phenomenon that causes real helicopters to spin without a tail rotor.

Ducted fans don't generate much torque, and it doesn't look like his nozzles rotate.

EDIT 2: I think what he's doing is slightly angling the nozzles in the same direction the props would normally torque to. This is a pretty clever solution, as this means he could probably just use a normal controller.

[u/UnspecificMedStudent]

Why is it not possible to cover the blade-occupied volume in a wire mesh?

[u/half_dragon_dire]

All I could think of when he started testing it in his backyard was "Man, his neighbors must *love* him." I get annoyed at leaf blowers across the street, I can't imagine living next to this guy and his howling banshee experiments.

[u/Fourhand_451]

That’s the loudest thing I’ve ever heard