Me thinks that's a CH46, not sure, never seen one, but definitely not a CH47.
Its an old bird isn't it.
The ADI is probably same as CH47, worked on them a bit. I remember we has jitter issues with the gain control amp in these and with the internal gears caused a little jitter in the ADI ball! We eventfully trotted down to 12SQN and asked them what they thought of this....Pilots and techs just laughed at us and said the effect..."aircraft shakes that much it would be impossible to see"!
Went home feeling like fools as we had be chasing this for weeks.
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