What is the "Gyro System" for planes and rockets?

Question

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Answer 1

it helps with direction finding and to keep the vehicle in a specific attitude.

Answer 2

A Gyro or Gyroscope system is an instrument that does not change its orientation from the one initially placed when it was put to motion. It is usually made off a constantly rotating wheel on an axle that can move freely to all positions relative to their stand which is fixed on a vehicle, aircraft, ship or spacecraft. They work on the principle of the preservation of momentum. The large compasses they use on ships are gyroscopic. Nowdays electronic gyros are also used on radio controlled helicopters to make it easier to fly them. In avionics they are called intertial navigation systems. In spacecraft and rockets they are used to determine its orientation even when there is no gravity.

Wikipedia has a good article http://en.wikipedia.org/wiki/Gyroscope

Answer 3

In aerospace there are two basic systems for controlling attitude by taking advantage of angular momentum.

These are CMGs (control moment gyros) and Momentum or Reaction Wheels. you can read more here:

http://en.wikipedia.org/wiki/Control_Moment_Gyroscope

CMGs pack more punch and for heavy or highly agile craft are the desirable solution. Reaction wheels can be more precise and tend to be lighter.

Also, gyros can also be used to determine the attitude of the craft (as opposed to just being used to change it.)

Answer 4

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Answer 5

gyroscopes are rotating discs(greek "gyro" = rotate. "scope" means measure... it's an instrument that keeps rotating). They keep rotating in the same direction, whatever you do to them... They keep pointing in the directiong of the star they pointed when you made them start to spin : it helps with navigation.