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Old Jan 11, 2013, 12:22 PM
I am what I teach
Tucson AZ
Joined Mar 2007
462 Posts
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Tesla VTOL

Just came across this -

"January 3, 1928, U.S. Patent 1,655,114 - The last patent issued to Nikola Tesla. It was for a biplane capable of taking off vertically (VTOL aircraft) and then be "gradually tilted through manipulation of the elevator devices" in flight until it was flying like a conventional plane. Tesla stated it would weigh 800 pounds and would sell at $1,000 for both military and consumer uses. It may be the earliest known design for what became the tiltrotor/tilt-wing concept as well as the earliest proposal for the use of turbine engines in rotor aircraft."

So who will be the first to make a scale modle of it!
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Old Jan 18, 2013, 09:53 PM
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United States, MN, Savage
Joined Apr 2009
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Very cool find. Thanks for posting.
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Old Jan 27, 2013, 11:01 PM
I'm goin' Falcon nuts
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White Salmon, Wa
Joined Oct 2003
2,588 Posts
Very cool but where's the anti-torque come from? It looks like it would spin out of control.
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Old Jan 28, 2013, 07:07 AM
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Joined Oct 2004
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The control surfaces numbered 7 and 8 are immersed in the slipstream (well, at least in the intentions of the inventor) and probably would be acting as anti-torque as well as hovering controls. The dimensions and initial angles would need a lot of tweaking, and stability in forward flight would be problematic. But it's not an impossible contraption.
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Old Jan 28, 2013, 09:49 AM
Winging it >
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Joined May 2006
9,414 Posts
Here is the closest thing to Tesla's design. I think it is close enough to show Tesla's concept was plausible.

Tilt Rotor Variable Pitch Range (Locking) Free Wing Coaxial Helicopter (1 min 15 sec)
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