The Remote Indicating Compass - Ch 15

Question 1

Features

Answer 1

The best of a DGI and a DIC

Providing long term and short term accuracy

Question 2

Components

Answer 2

Gyro (Basic DI if used on its own)
Stator: Replicates the magnetic info from the flux valve
Flux Valve: detects variations in flux on the wingtip

Question 3

Flux Valve

Answer 3

Mounted on Hooke Joint - 3 legs wrapped in a coil
Coil through the middle is an exciter coil
Current becomes modified by Earths magnetic field and is relayed to RIC

Question 4

Stator

Answer 4

Replicates what is happening in the flux valve

Displays magnetic flux as heading

Question 5

Correction

Answer 5

Compensates for error by moving the gyro (automatic)

There is an error detector which detects differences between the Gyro HDG and the Mag. HDG

Amplifies this signal, precession motor then moves the Gyro until error is gone

Question 6

Annunciator

Answer 6

Shows slaving circuit to the torque motor - synchronisation

Flicks left and right normally (if stopped = error)

If toppled completely you will have to re-erect

Question 7

Slaved Operation

Answer 7

Slaving gyro to the flux Valve (normal operation)

Question 8

Free Operation

Answer 8

Now acts like a DI (gyro only)

Used like this when at high lat