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Gyros?

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Old 11-22-2005, 10:51 AM
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149531
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Default Gyros?

What does a gyro do in an airplane? I use it on a Yak 54 while flying the simulator, I can hover a lot easier however I don't understand the physics.
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Old 11-22-2005, 10:55 AM
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Default RE: Gyros?

The gyro uses a technology called piezo-electric that senses a change in direction. When it senses that the plane yaws to the left, it automatically adds right rudder. the same device (gyro) comes with some video cameras to sense that the camera is moving. (anti-shake device). Many years agom the "gyro" used a mechanical gyroscope (spinning disk) to sense the angular change. Thus the name of the device.
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Old 11-22-2005, 02:01 PM
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Default RE: Gyros?

A spinning disc (gyroscope) has angular momentum in one direction. This spinning mass resists any attempts to change directions. This is what makes a motorcycle and bicycle stay up while riding. The wheels act as large gyroscopes.
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Old 11-22-2005, 03:39 PM
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Default RE: Gyros?

Just curious how that applies to the question as modern Piezo gyros have no moving parts?

To answer the original question, if it senses rotation about an axis it corrects that my moving a servo to counter that movement. Theres single axis gyros that us helicopter types use on the tail rotor servo to keep the tail under control and dual axis aircraft gyros that can control both the elevator and rudder servos.
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Old 11-22-2005, 11:43 PM
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Default RE: Gyros?

Basically gyros provide artificial stability. Gyros can be added if the plane and/or the pilot are not able to provide the desired level of control over position about an axis. A typical use for fixed wing aircraft is to tame a tail dragger that ground loops badly.

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