Directional Gyro Flashcards
1
Q
DG
A
is syncronized with magnetic heading
2
Q
type
A
Orizontal Gyro
2 degree of freedom
Compare aircraft axis to gyro axis
outer gimbal drive the display
3
Q
Cagin
A
mechanical force the gyro to allign
Pull
roate to correct heading
release the knob
4
Q
Driving system
A
Pneumatic 10000 rpm
DC Motor 12/15000
AC Motor 24000
5
Q
Pneumatic
A
Erection
Coarse by air jet
Fine erection by wedge plate
6
Q
DGI
A
DG must resync every 10 min must be in straight and level flight resync after heavy maneuvring 55° air diven 85° electrical doesn't affect accelerator or turning error allow pitch and roll
7
Q
Latitude Knob
A
it is a screw with a mass that it is used to create an opposite drift to earth rate utilize the precession, it can correct only in a specific latitude
Unscrew in NH
Screw in SH
8
Q
Error
A
gimbal - it is limit when too much bank is applied
random wander - real(imperfection or force)
apparent wander
error varying rotor rpm - in a air sunction on High Alt
transport wander
