Aircraft bubble sextant.

Bubble sextant probably made by Henry Hughes and Son Ltd

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

Bubble sextant probably made by Henry Hughes and Son Ltd, London, about 1942. Marked on the left side of the casing: A.M. | Bubble Sextant | Mark IXA. | Ref. No. 6B/218 | Brits. Pats | 480112 490621 | and pending. Marked on the right side of the casing: Serial no.8903/42. Black crackle-lacquered alloy casing incorporating artificial materials, housing optical equipment, a clockwork averaging mechanism, electrical equipment, and a rubber eyecup. No box.

Details

Category:
Navigation
Object Number:
1956-237
Materials:
steel (metal), brass (copper, zinc alloy), fibreglass, mirror-glass (silvered), acrylic and rubber (unidentified)
Measurements:
overall: 305 mm x 260 mm x 290 mm, 2.42kg
type:
bubble sextant and aircraft sextant
credit:
Central Navigation and Control School (RAF)

Parts

Attachment for bubble sextant

Averaging attachment for Bubble sextant probably made by Henry Hughes and Son Ltd, London, about 1942.

Measurements:
overall: 105 mm, .08kg
Materials:
glass and steel (metal)
Object Number:
1956-237/1
type:
bubble sextant and aircraft sextant
Image ©
The Board of Trustees of the Science Museum