Gyro Basics

Question 1

What is a gyroscope?

Answer 1

Spinning mass which maintains rigidity.

Question 2

What three things increase gyroscopic rigidity?

Answer 2

Higher gyro RPM - greater gyro mass - mass located at a greater distance from spin acis

Question 3

What is the RPM of a gyroscope?

Answer 3

15000-25000

Question 4

What direction does a gyroscope move if pushed?

Answer 4

90 degrees on procession.

Question 5

What is a gimbal?

Answer 5

Bearings and supporting frames on a gyroscope.

Question 6

How many degrees of freedom does a displacement gyroscope have?

Answer 6

2.

Question 7

Which axis is not counted as a degree of freedom in a displacement gyroscope?

Answer 7

Spin axis.

Question 8

How many degrees of freedom does a rate gyroscope have?

Answer 8

1.

Question 9

A gyroscopic wander topples. What plane is this movement?

Answer 9

Vertical.

Question 10

A gyroscopic wander drifts. What plane is this movement?

Answer 10

Horizontal.

Question 11

How fast does the earth rotate in kts?

Answer 11

600kts

Question 12

How many degrees rotation per hour at the earth?

Answer 12

15.04

Question 13

At the equator blank is max and blank is zero.

Answer 13

Topple - drift

Question 14

What are the two ways a mechanical gyroscope can be driven by?

Answer 14

Air using vacuum pump or electrically.

Question 15

What are the two types of apparent wander?

Answer 15

Transport wander and earth rotation.

Question 16

What are the two types of real wander?

Answer 16

Random wander and latitude compensation.

Question 17

How is transport wander caused?

Answer 17

A gyroscope moving across the earth.

Question 18

What compensates for the earths rotation?

Answer 18

Latitude nut.

Question 19

How is random wander caused?

Answer 19

Mechanical imperfections.

Question 20

I

Question 21

What C of G does a pendulous unit have

Answer 21

Low.