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HomeAircraftHelicopterAutogyros - Gyrocopters › Dummy don't know the diff,,,,
11-07-2004 01:03 AM  13 years agoPost 1
wurthless

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Redding Ca.

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New guy on the block, Hello everyone, nice place to find out about helicopters!!!! Been lurking fo awhile and had a few ???? Right off the top what is the difference between a heli and a gyro, in therory and flight characteristics. Thanks,,,,Mike

QUICK! ,,,can someone turn the gravity off for just a second,,,,

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11-08-2004 12:27 AM  13 years agoPost 2
Fullagas

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Michigan

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.
what is the difference between a heli and a gyro
A heli main rotor is powered by a motor, whereas an autogyro's main rotor is not powered, but is spun by the air going 'through' the disc. Think of it as the autogyro is always in a small descent, even when flying level. A self-propelled autogyro uses a motor to push or pull it through the air, and the air going by spins the main rotor up, creating lift. Helicopters use the same principle of autorotation of the main rotor to keep it turning in the case of an engine failure. Autogyros don't need a tail rotor, because no motor torque is fed to the main rotor while in flight.

To complicate matters further, there are a few full-size autogyros that use a device called a pre-rotator, which uses the motor to initially get the main rotor turning. This is called a 'jump' take-off.

.

Flying helis since gyros had springs.

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11-12-2004 05:43 AM  13 years agoPost 3
wurthless

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Redding Ca.

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Thanks,,,
Been aeway from the puter for awhile ,,just read your post thanks for the help...Mike

QUICK! ,,,can someone turn the gravity off for just a second,,,,

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