Fan Wing
Thread Starter
Joined: Nov 2007
Posts: 414
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From: Hoylake
Fan Wing
This may have been posted in the past, but I cant find anything.
YouTube - FanWing Demonstration Flight at ParcAberporth International UAV/S Event June 2008
What would happen in an engine failure situation, do you think or know if it will glide?
Regards
NT
YouTube - FanWing Demonstration Flight at ParcAberporth International UAV/S Event June 2008
What would happen in an engine failure situation, do you think or know if it will glide?
Regards
NT
Joined: Mar 2005
Posts: 1,338
Likes: 1
From: Uh... Where was I?
I don't think so, for the same reason it is not affected by turbulence in the same manner as a conventional wing.
Its shape is airplane like but I think it is something between an airplane and a helicopter.
It has a propulsive system that provides both Lift and Thrust. Like helicopters. It is not a fixed wing. Maybe it has some kind of autorotation if the fan fails, but I think that this UAV would glide more or less like a stone after the engine failed. Let alone if the fan stops completely...
It can be useful for Big Brother surveillance over cities, until one of them crashes into someone.
Its shape is airplane like but I think it is something between an airplane and a helicopter.
It has a propulsive system that provides both Lift and Thrust. Like helicopters. It is not a fixed wing. Maybe it has some kind of autorotation if the fan fails, but I think that this UAV would glide more or less like a stone after the engine failed. Let alone if the fan stops completely...
It can be useful for Big Brother surveillance over cities, until one of them crashes into someone.
Joined: Jan 2008
Posts: 761
Likes: 9
From: Herts, UK
Looks like it has a good future.
Low power/unit lift (not as low as helicopter for vertical lift) but fwd speed not limited by upwind rotor tip-speed
It will autorotate at about 3:1 glide once the motor is declutched.
VTOL version capability proven
What happens if the rotor seizes/stops is the question (for full-sized and manned flight), but this hasn't inhibited adoption of helicopters, lose the rotor, lose any lift... it may be that a degree of stalled but controlled descent may be possible.
Low power/unit lift (not as low as helicopter for vertical lift) but fwd speed not limited by upwind rotor tip-speed
It will autorotate at about 3:1 glide once the motor is declutched.
VTOL version capability proven
What happens if the rotor seizes/stops is the question (for full-sized and manned flight), but this hasn't inhibited adoption of helicopters, lose the rotor, lose any lift... it may be that a degree of stalled but controlled descent may be possible.
Joined: Jan 2008
Posts: 761
Likes: 9
From: Herts, UK
No, but I do like the concept, first new idea for quite a while and I sense there could well be some interesting applications.
The (asserted) fact that gust-response and general turbulence handling is different and better than a conventional wing and discrete thrust generator is very interesting.
As is the distribution of thrust over a large area (always a good thing, partic. noise-wise)
This is a 'circulation theory of lift' implementation, much like the rotating vertical rotor 'substitute for sail' idea for yachts
I'd have liked to have had this idea myself
The (asserted) fact that gust-response and general turbulence handling is different and better than a conventional wing and discrete thrust generator is very interesting.
As is the distribution of thrust over a large area (always a good thing, partic. noise-wise)
This is a 'circulation theory of lift' implementation, much like the rotating vertical rotor 'substitute for sail' idea for yachts
I'd have liked to have had this idea myself
Joined: Feb 2005
Posts: 4,581
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From: flyover country USA
Check out the Custer Channel Wing.
