Rotary-wing Ultralight Aircraft

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aeroallan

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Apr 3, 2008
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According to this youtube video
an ultralight autogyro has been built and flown. Have you done this?
Are you aware of an ultralight autogyro? I am extremely interested in anybody who
has built and flown an autogyro that weighs less than 254# and qualifies as an ultralight airplane.
An autogyro is a VSTOL aircraft, meaning it ascends and descends at steeper angles than a fixed-wing
aircraft.
 

Dillpickle

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Piny Woods, Tx
[QUOTE
An autogyro is a VSTOL aircraft, meaning it ascends and descends at steeper angles than a fixed-wing
aircraft.
[/QUOTE]
Ehh....Pterodactyl Ascender had a ROC of over 1000 FPS, and the Kasperwing could descend **** near vertically, and both could be flown as true ULs. I don’t know of a true UL gyro with that climb performance. Gyros are fun, and high on the cool factor. They may or may not be the best option. What is the flight mission?
 
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Dana

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Most gyros aren't STOL, unless they have collective for a "jump takeoff" they usually have long takeoff rolls, and not vertical climb, though they can land near vertically.
 

aeroallan

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Is a "jump takeoff" a mechanism to transfer torque from the propellor to the wing rotor just long enough to lift the autogyro off the ground ?
 

jedi

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Sahuarita Arizona, Renton Washington, USA
Yes and No.

"jump takeoff" uses the engine to spin the rotor to a high speed while on the ground then unpowers the rotor and changes the rotor blade pitch and utilizes the rotor blade inertia to jump off the ground.

Most autogyros use a pre rotor to spin the rotor to a much lower speed and then use the forward speed on the take off roll to bring the rotor up to flight speed. This can be done without changing the rotor pitch which greatly reduces the rotor mechanics.

By the time you build the jump takeoff rotor you are half way to making a helicopter. Might as well go all the way in most instances.
 

dino

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Once you get it to jump it’s as complicated as a helicopter and still can’t hover
 

henryk

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krakow,poland
Once you get it to jump it’s as complicated as a helicopter and still can’t hover
-it exist simple solution=

=REACTIONLESS electric powerfull prerotation (CR FLIGHT mode)=VTOL helicopter like=,
without changing the rotor pitch ...only rotor RPM controll.

=rotors can be different diameter.
 

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Aesquire

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Jul 28, 2014
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Rochester, NY, USA

Jump Gyro.

Note the builder is a helicopter pilot and built his own helicopter Before tackling a Jump Gyro.

And it's heavier than a pt-103 U.S. Ultralight, but quite the nice job.
 
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Giancarlo Martino

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Feb 19, 2021
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Holasoy nuevo en el grupo he visto videos del Pitcairn P36 que es un autogyro que despega en salto alguien sabe como funciona su mecanismo de despegue no sé si es un colectivo u otra forma gracias
 

Erik Snyman

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Oct 9, 2019
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-it exist simple solution=

=REACTIONLESS electric powerfull prerotation (CR FLIGHT mode)=VTOL helicopter like=,
without changing the rotor pitch ...only rotor RPM controll.

=rotors can be different diameter.
Henryk, is the propeller fixed to the rotor, or does it move independently of the main rotor?
Erik in Oz.
 

henryk

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krakow,poland
Henryk, is the propeller fixed to the rotor, or does it move independently of the main rotor?
Erik in Oz.
=upper (0.7 m diameter) propeller on the motors rotor (1 kW modellar),
lower (1.3 m diameter helicopter blades) on the stator ,vie bearing to the frame...

(under motor=sliding 3 phase contacts to the BLDC controller )
 

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