Gyros

Question 1

What is a gyroscope?

Answer 1

A spinning mass which maintains rigidity in space due to its inertia

Question 2

What does gyro rigidity increase with?

Answer 2

High gyro RPM

Greater gyro mass

Mass located at a greater distance from the gyros spin axis

Question 3

Why is a gyro contained in gimbals?

Answer 3

To maintain some/all of its orientation in inertial space as the a/c pitch, yaws and rolls

Question 4

How many gimbals, degrees and axes of freedom does a displacement gyro have?

Answer 4

2 GIMBALS

2 DEGREES of freedom

3 AXES of freedom

Question 5

How many gimbals, degrees and axes of freedom does a rate gyro have?

Answer 5

1 GIMBAL

1 DEGREE of freedom

2 AXES of freedom

Question 6

What is gyro wander?

Answer 6

Topple = motion in vertical plane

Drift = motion in horizontal plane

Question 7

What is apparent wander caused by?

Answer 7

Change of orientation of the observer relative to the gyro

Question 8

What is real wander?

Answer 8

Actual change of orientation of a gyro

Question 9

Why do directional gyros drift over time?

Answer 9

Earth rotation

A/C manoeuvres

Transport error