Our next open source project = Jump-takeoff

XXavier

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The clutch might probably be of the pulley type, as used today by Magni, ELA and Auto-Gyro. It's simple, reliable, and the torque transmitted is usually sufficient. The Weir W.3 used a 50-hp engine...
 

XXavier

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More info on the 'autodynamic rotor' here...

1144634
 

All_In

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Thank you, Javier and Mac. You guys make the forum Rock!
 

Smack

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John, attached is my version of your project description form.
Slightly re-worded to allow a bit broader solution spectrum.
Brian
 

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  • JumpTakeOff Sponsorship Application - Brian1.pdf
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All_In

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John, attached is my version of your project description form.
Slightly re-worded to allow a bit broader solution spectrum.
Brian
Thank you, Brian!!! U-Rock!
 

Smack

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John, if your project is using a direct-drive type of motor system, you might want to include a 'recharge' / 'braking' component in the project.
Elaborating: the motor could eliminate the need for a rotor brake (weight reduction to compensate for motor system).
Brian
 

All_In

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I did add a charging system to the jump-take-off. We will steal it and add it to the pre-rotator.
 

Eric S

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I was searching for something else and ran across this old thread. Does anyone know if this jump project ever went anywhere?
 

Resasi

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I must admit that my fascination with gyros was initially sparked by Jay Carter's vertical jump Butterfly and the Carter Copter.

I followed their progress for a while, even put a deposit down for the proposed two seater... that never was. It was only later when Rusty Nance who test flew both revealed how poorly the Butterfly with the depleted uranium weights on it rotors handled, other than making spectacular leaps, that I realised that it was rather a one trick pony.

I have no doubt that it is possible, Dick and Carol's two machines seem to fly very well, but the fact that it has not yet become a staple gyrocopter feature would seem to indicate that it has it's downsides.

In general cost, weight, complexity, and reliability are all good reasons that more exotic features do not commonly/regularly appear on flying machines. That is not to say that these features cannot be achieved as each of those problems are over come.
 

Smack

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I was searching for something else and ran across this old thread. Does anyone know if this jump project ever went anywhere?
I think that if something worthwhile had emerged, we would have heard about it.
Sadly, I think there was a lot of fluff, but no known substance.
 

okikuma

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Now if someone desires to resurrect this idea...

1674142690546.png
Definitely will have jump capability and one will be able to build turbine rotorcraft time too.

Wayne
 
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