The autogyro as flying car (in 4 parts)

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Jstorrshall

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Sep 3, 2013
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Location
Melfa, VA USA
"The key would be partially powering the rotors, with a direct drive motor right on the rotor hub."

=see Jumping Gyro

https://www.youtube.com/watch?v=t6xjCUVuUzg&t=23s

-it is reactionless methode of rotor drive...(no need in two propellers).
Yes, DeGraw is quite impressive. Pitcairn experimented with jump-takeoff in the 1930s and others have also done in the meantime. But look at his rotor head: one of the reasons it's so impressive is that it's quite complex. Cost has got to be getting up into helicopter territory.

The other thing is that jump takeoffs are somewhat difficult and dangerous: http://www.aero-news.net/index.cfm?do=main.textpost&id=f6d57ee1-1f25-448a-8903-38adc97f210f
 

henryk

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Mar 8, 2010
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krakow,poland
Yes, DeGraw is quite impressive. Pitcairn experimented with jump-takeoff in the 1930s and others have also done in the meantime. But look at his rotor head: one of the reasons it's so impressive is that it's quite complex. Cost has got to be getting up into helicopter territory.

The other thing is that jump takeoffs are somewhat difficult and dangerous: http://www.aero-news.net/index.cfm?do=main.textpost&id=f6d57ee1-1f25-448a-8903-38adc97f210f
-the same can be with "normal" autogyro...

-auer concept (modell tested) is much simpler=electric motor with conterrotating
propellers (take off,landing,post-rotation) +propeller thruster for cruise regime.
 

Jstorrshall

Member
Joined
Sep 3, 2013
Messages
20
Location
Melfa, VA USA
-auer concept (modell tested) is much simpler=electric motor with conterrotating
propellers (take off,landing,post-rotation) +propeller thruster for cruise regime.
Well, I don't know what your concept is (can you give me a link?), but yes a standard quadrotor configuration is simpler than the gyro I've outlined above. The big problem is power -- a quadrotor needs a lot of power. Batteries are way too heavy. In 10 years or so we'll probably have fuel cells that are good enough, but in the meantime you would need a turbine/generator.
 

henryk

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Mar 8, 2010
Messages
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krakow,poland
Well, I don't know what your concept is (can you give me a link?), but yes a standard quadrotor configuration is simpler than the gyro I've outlined above. The big problem is power -- a quadrotor needs a lot of power. Batteries are way too heavy. In 10 years or so we'll probably have fuel cells that are good enough, but in the meantime you would need a turbine/generator.
-sorry,patent pending...

=very simple,gearless,autorotation recovery system,=

15 kG thrust force/1 kW (24 V * 45 A ) -minus BLDC motor and controller efficiancy...(at 12 kG/ m^2 )
 
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