Aircraft bubble sextant.

Bubble sextant made by Henry Hughes and Son Ltd

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Bubble sextant made by Henry Hughes and Son Ltd
Science Museum Group
© The Board of Trustees of the Science Museum

Bubble sextant made by Henry Hughes and Son Ltd., London, about 1946. Marked on the left side of the casing: Bubble Sextant | MK XII N° 17 | H. Hughes & Son Ltd | London | Brit. Pat 480112 490621 | and foreign patents. Scale from 0° to 80° every 1°. Vernier to 1'. Black crackle-lacquered alloy casing incorporating artificial materials, housing optical equipment, a clockwork averaging mechanism, and electrical equipment; two wooden handles. Three shades (all grey/green). Two spare lamp bulbs and some unidentified parts are missing. In a fitted wooden box painted green, with a leather strap.

Details

Category:
Navigation
Object Number:
1956-238
type:
bubble sextant and aircraft sextant
credit:
Central Navigation and Control School (RAF)