Hovercraft Design and Theory - Excercise 1

Hovercraft Design and Theory

The image of V22 Osprey shows what can be done with tilting rotors,although Hovcopt would employ a different method of tilting the rotors which gives more control over un-equal lift.The usual method is to tilt the rotor head only.

 

Low flying aircraft face special hazards and the safety record of the Osprey reflects this. I really like the idea of the Osprey............it's concept seems so much simpler than comparible VOTL craft and helicopters/gyrocopters..

I don't know if it's true but there is a WWII legend of a P-47 Thunderbolt hitting a telephone pole (and or wires) which took four feet off one of it's wings. They say the plane flew safely back to base and landed without incident.

Too bad there is not a plane/helicopter without external moving parts that can pass through obstacles/trees without coming apart in a million pieces. A kind of a "tank of the sky" - oh and it would have to float.

 

Hovercraft Design and Theory.

The old aircraft had big radial engines and the old circut racers of the 30`s and 40`s had big engine cowls and the props barely protuded past the cowls and were prett fast,and also such planes as the WW2 Corsair.The design ilustrated is not intended as a production design but is a graphic representation of a basic plan.

 

Did anything ever get built to test this Hovercopter idea ?

 

Not that I know of, but it is inserted into more than just one thread in the forum. You may wish to do a "Search".

 

maybe there is some space in between a helicopter, hovercraft, a hovercraft WIG and what have we
for a fanwing http://www.gizmag.com/d-dalus-uav-d...aign=2aca5ad069-UA-2235360-4&utm_medium=email
also discussed here http://www.boatdesign.net/forums/boat-design/heliferry-concept-innovative-boat-design-4605.html

 

That's a reaching statement if ever I've read one.

Interesting approach though.

 

D-Dalus Aircraft

Austrian research company IAT21 has presented a new type of aircraft at the Paris Air Show which has the potential to become aviation's first disruptive technology since the jet engine. Neither fixed wing nor rotor craft, the D-Dalus uses four, mechanically-linked, contra-rotating, cylindrical turbines for its propulsion, and by altering the angle of the blades, it can launch vertically, hover perfectly still, move in any direction, and thrust upwards and hence "glue down" upon landing, which it can easily do on the deck of a ship, or even a moving vehicle. It's also almost silent, has the dynamic stability to enter buildings, handles rough weather with ease, flies very long distances very quickly and can lift very heavy loads. It's also so simple that it requires little maintenance and requires no more maintenance expertise than an auto mechanic. It accordingly holds immense promise as a platform for personal flight, for military usage, search and rescue, and much more.

Lots of pess releases and photos on Google. Here is one article that brought it to my attention:
How D-Dalus Flies Like Nothing Else | Popular Science



...also posted over here where I had previously brought up the subject of 'quad rotor aircraft'
http://www.boatdesign.net/forums/boat-design/quadrotor-helicopters-33586.html#post557005

 

sort of a fanwing but here with its trust down between the mechanicly linked counter rotating voight sneider rotors
it say's "Servo motors communicate with the rotor assemblies to automatically correct the craft’s speed,
position and balance by adjusting the blades’ angle" that could be computer controlled i asume but where is the motor?
classified militairy spendings or could that be a turbojet driving those 2000 rpm fans making it some sort of vtol turboprop?

long time ago as a child on an aviation fair i played with a small glas windtunnel with systems for lift in it
remember playing with a wing, autogiro, fanwing and these old aerodynes (second half of the page)

 

Great link, I bookmarked it.