Liquid compass - aircraft
Liquid compass.
Bowl: Black painted metal, filler plug at side, expansion chamber at base. Fitted with a verge ring, graduated to 360 degrees anti-clockwise, which has an outer rotatable ring which carries a course indicating pointer. The lubber line is engraved in red on the verge glass. Inside of bowl painted black. Mounted in a black painted gimbal ring which is attached to a special mounting carrying a spindle with two racks for correcting magnets with a circular cover. The mounting is carried in a ring which permits the whole unit to be moved in azimuth and two 20 degree scales and provided. Attached to a wood bracket which is secured to a portion of the aircraft and has the remains of a deviation table.
Card: Enamelled rim, white with black markings, graduated to 360 degrees, attached to an unpainted aluminium float at centre.
Needle: Unsighted.
Pivot: Unsighted.
The bowl of this compass was filled with paraffin, now empty.
O. A. Height 8.0" (20.3 cm)
Bowl: Black painted metal, filler plug at side, expansion chamber at base. Fitted with a verge ring, graduated to 360 degrees anti-clockwise, which has an outer rotatable ring which carries a course indicating pointer. The lubber line is engraved in red on the verge glass. Inside of bowl painted black. Mounted in a black painted gimbal ring which is attached to a special mounting carrying a spindle with two racks for correcting magnets with a circular cover. The mounting is carried in a ring which permits the whole unit to be moved in azimuth and two 20 degree scales and provided. Attached to a wood bracket which is secured to a portion of the aircraft and has the remains of a deviation table.
Card: Enamelled rim, white with black markings, graduated to 360 degrees, attached to an unpainted aluminium float at centre.
Needle: Unsighted.
Pivot: Unsighted.
The bowl of this compass was filled with paraffin, now empty.
O. A. Height 8.0" (20.3 cm)
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Object Details
ID: | ACO0555 |
---|---|
Type: | Liquid compass - aircraft |
Display location: | Not on display |
Creator: | Nautical Instrument Manufactory |
Date made: | 1914-18; 1914-1918 |
Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
Measurements: | Overall: 205 mm x 230 mm x 185 mm x 1.6 mm |
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