Compass Bowl, for Direct Reading Compass, WWI F-101 Voodoo Ref 6A/0726

Ref 6A/0726

Fuel Flow Indicator

there is a locking screw that captures the rotating ring and preventing unintended rotation

Supermarine Seagull V

or to determine correction factors for fixed compasses

Compass Bowl, for Direct Reading Compass, WWI F-101 Voodoo Ref 6A/0726Here is a Compass Bowl from a WWI era aeronautical compass. The brass bowl would have been mounted by the 3 rubber covered metal pegs to a frame, with the frame attached to the instrument panel or to a pedestal. The compass card, which is missing, would rest on the center spring mounted pole, allowing it to float in the compass fluid and to rotate as necessary to point north. There would have been a directional ring affixed to the top flange which