Un-Folding a Quadcopter to Increase Efficiency - Part 1
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If you take a large, efficient wing and fold it up into a box, you can turn it into a quadcopter. This sounds kind of silly, but I promise there’s some distinct benefits to controllability in hover, and efficiency in forward flight.
*Patreon:* https://www.patreon.com/NicholasRehm
*How a tailsitter transition works:* https://www.youtube.com/watch?v=RabFZzRyZo8&
*Can wingtip-mounted motors improve efficiency?:* https://www.youtube.com/watch?v=Vi9FqIAG0Rg&
*Peter’s mini quadrotor biplane:* https://www.youtube.com/watch?v=wABg5nVsi3M&
Tail-sitter VTOL designs are a hilariously simple approach to the challenges of mashing an airplane and a helicopter together. Just make a flying wing take off from its tail and pitch over 90 degrees into forward flight. But to improve the efficiency of forward flight generally means to degrade the controllability in hover, since increasing the size of your wing also increases the amount of surface area that can be blown around by the wind. For tailsitters, forward flight efficiency and hover controllability have always been in direct conflict. This design is my attempt at remedying this classic tradeoff, to see just how big of a wing we can turn into a tailsitter. Folding it up allows for motors to be placed in each corner like a quadcopter, dramatically improving control authority, while reducing the wind-facing surface area in hover. If you found this video interesting and want to follow along as we inch closer into forward flight, don’t forget to subscribe!
Intro: 00:00
Design Overview: 00:57
The Build: 03:25
First Flights: 05:15
Forward Flight Game Plan: 07:14
Transition Testing: 08:00
Conclusions: 09:56
#FoldWing #VTOL
Видео Un-Folding a Quadcopter to Increase Efficiency - Part 1 канала Nicholas Rehm
If you take a large, efficient wing and fold it up into a box, you can turn it into a quadcopter. This sounds kind of silly, but I promise there’s some distinct benefits to controllability in hover, and efficiency in forward flight.
*Patreon:* https://www.patreon.com/NicholasRehm
*How a tailsitter transition works:* https://www.youtube.com/watch?v=RabFZzRyZo8&
*Can wingtip-mounted motors improve efficiency?:* https://www.youtube.com/watch?v=Vi9FqIAG0Rg&
*Peter’s mini quadrotor biplane:* https://www.youtube.com/watch?v=wABg5nVsi3M&
Tail-sitter VTOL designs are a hilariously simple approach to the challenges of mashing an airplane and a helicopter together. Just make a flying wing take off from its tail and pitch over 90 degrees into forward flight. But to improve the efficiency of forward flight generally means to degrade the controllability in hover, since increasing the size of your wing also increases the amount of surface area that can be blown around by the wind. For tailsitters, forward flight efficiency and hover controllability have always been in direct conflict. This design is my attempt at remedying this classic tradeoff, to see just how big of a wing we can turn into a tailsitter. Folding it up allows for motors to be placed in each corner like a quadcopter, dramatically improving control authority, while reducing the wind-facing surface area in hover. If you found this video interesting and want to follow along as we inch closer into forward flight, don’t forget to subscribe!
Intro: 00:00
Design Overview: 00:57
The Build: 03:25
First Flights: 05:15
Forward Flight Game Plan: 07:14
Transition Testing: 08:00
Conclusions: 09:56
#FoldWing #VTOL
Видео Un-Folding a Quadcopter to Increase Efficiency - Part 1 канала Nicholas Rehm
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