Anyone recognize this homebuilt twin-rotor helo?

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GlassVampire

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May 13, 2009
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Wellington, KS
Someone posted this on a FB page I'm a member of and we are trying to find more info about it. All we have is this pic, though supposedly it was built by someone in Africa (go figure) and has been flown (I"m somewhat dubious on that last feat). The rotors are articulated and both are powered (so I've been told). Anyone else seen it?

:whistle:

10005830_1607975866090898_7882672451288570641_o.jpg
 

rbrochey

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Oct 17, 2010
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Gallup, New Mexico USA
I like it... put some floats on it and only fly above a lake... wait I know... we could all pitch in about 10K each to develop it... then market it exclusively to exiled Nigerian Kings... ;)
 

TFF

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Memphis, TN
The stick looks like it is screwed into the instrument panel, and the CG is so nose heavy it would roll over if it could lift up. Just a fancy version that all of us dreamed we could build in the garage when we were 10.
 

BJC

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97FL, Florida, USA
Someone posted this on a FB page I'm a member of and we are trying to find more info about it. All we have is this pic, though supposedly it was built by someone in Africa (go figure) and has been flown (I"m somewhat dubious on that last feat). The rotors are articulated and both are powered (so I've been told). Anyone else seen it?

:whistle:

View attachment 38207
Looks like a Moller Air Car Mark 1.


BJC
 

GlassVampire

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May 13, 2009
Messages
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Wellington, KS
Awww come on guys, haven't you ever had a dream? :lick: You have to hand it to the builder though, they tried- they just need some direction and aerodynamics/engineering lessons. Turn this into a learning experience- what do you think about using twin non coaxial rotors to cancel out torque?
Would two smaller diameter props (as shown in this one) weigh less than one larger one up top(as in the case of most gyrocoptors)? What would be the advantages and disadvantages of going this route as opposed to the standard one rotor route?
 

TFF

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Apr 28, 2010
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Memphis, TN
Weight in blades is what makes autorotations not dangerous. Light blades dont retain inertia well. Also having blades at close to neck hight is not my idea of fun; although if one came off it would not matter if you died from decapitation or impact. driveshaft breakage would be a constant scare. And if you actually got it flying ,you can put one set of blades in a settling with power situation by flying laterally. It might be good cutting overhanging limbs on my driveway. Dreams are fun, but helicopters and way substandard engineering just makes Darwin awards.
 
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