Compass Bowl, for Direct Reading Compass, WWI F-101 Voodoo with a maximum airspeed of

with a maximum airspeed of 350 Knots

or to determine correction factors for fixed compasses

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

Fuel Flow Indicator

A-3 or AN-5780)

Compass Bowl, for Direct Reading Compass, WWI F-101 Voodoo with a maximum airspeed ofHere 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