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Type 6/18
Liquid compass
Bowl: Brass, inside painted white , expansion diaphragm attached to base. Filler plug and electric lamp fitting on side of bowl. Verge glass carries a fixed arrow inside the bowl. The bar which carries the arrow carries a cup to prevent card coming off pivot. Fitted with rotatable verge ring, graduated 1 36 (to 360 degs), carries 6 parallel wires, for grid steering.
Card: Light spider, Red North point, Blue South point, of eight legs.
Needle: Six needles are mounted below spider.
Pivot: Steel needle, attached to base of bowl on a cross bar.
Stand: The wooden stand is reputed to be the one on which it was fitted in the machine in 1919.
Corrector: Corrector magnet carrier mounted on base of bowl.
O.A.height 7.25" (18.4cm)
Bowl: Brass, inside painted white , expansion diaphragm attached to base. Filler plug and electric lamp fitting on side of bowl. Verge glass carries a fixed arrow inside the bowl. The bar which carries the arrow carries a cup to prevent card coming off pivot. Fitted with rotatable verge ring, graduated 1 36 (to 360 degs), carries 6 parallel wires, for grid steering.
Card: Light spider, Red North point, Blue South point, of eight legs.
Needle: Six needles are mounted below spider.
Pivot: Steel needle, attached to base of bowl on a cross bar.
Stand: The wooden stand is reputed to be the one on which it was fitted in the machine in 1919.
Corrector: Corrector magnet carrier mounted on base of bowl.
O.A.height 7.25" (18.4cm)
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Object Details
| ID: | ACO0332 |
|---|---|
| Type: | Liquid compass - aircraft |
| Display location: | Not on display |
| Creator: | Campbell, Colin; Bennett, Dr. G. T. |
| Date made: | 1918 |
| People: | Ross-Smith, Keith |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 195 mm x 170 mm x 150 mm |