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Type O.2
Liquid compass
Bowl: Brass painted grey. Has domed glass. Azimuth circle and sights. Has fill hole on side of bowl. Bowl held in a brass outer bowl. White inside with black lubber wire. White lubber line on outside of bowl.
Card:Thin rim with hollow centre. Float at centre and spokes to rim. White with black markings graduated to 4 cardinal points and to 360 degrees. has 8 radial damper arms coming from rim of card.
Needle: Four needles set in tubes slung beneath card.
Pivot: Unsighted
Azimuth Circle: Has securing lever and spirit bubble level. Prismatic sights with hinged jet reflector blank off plate.V and nipple line up. Two hinged filters.
O.A. height 7" (17.9cm)
Bowl: Brass painted grey. Has domed glass. Azimuth circle and sights. Has fill hole on side of bowl. Bowl held in a brass outer bowl. White inside with black lubber wire. White lubber line on outside of bowl.
Card:Thin rim with hollow centre. Float at centre and spokes to rim. White with black markings graduated to 4 cardinal points and to 360 degrees. has 8 radial damper arms coming from rim of card.
Needle: Four needles set in tubes slung beneath card.
Pivot: Unsighted
Azimuth Circle: Has securing lever and spirit bubble level. Prismatic sights with hinged jet reflector blank off plate.V and nipple line up. Two hinged filters.
O.A. height 7" (17.9cm)
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Object Details
| ID: | ACO0348 |
|---|---|
| Type: | Liquid compass - aircraft |
| Display location: | Not on display |
| Creator: | Air Ministry |
| Date made: | 1924 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 162 mm; Diameter: 170 mm |
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