Aircraft bubble sextant.

Made:
1919-1922 in Farnborough
maker:
Lionel Barton Booth
and
Royal Aircraft Establishment
Bubble sextant designed by Lionel Barton Booth and made by the Bubble sextant designed by Lionel Barton Booth and made by the Bubble sextant designed by Lionel Barton Booth and made by the

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Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

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License this image for commercial use at Science and Society Picture Library

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Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

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License this image for commercial use at Science and Society Picture Library

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Bubble sextant designed by Lionel Barton Booth and made by the
Science Museum Group
© The Board of Trustees of the Science Museum

Bubble sextant designed by Lionel Barton Booth and made by the
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Bubble sextant designed by Lionel Barton Booth and made by the
Science Museum Group Collection
© The Board of Trustees of the Science Museum, London

Bubble sextant designed by Lionel Barton Booth and made by the Royal Aircraft Establishment, Farnborough, about 1920. Marked on the side of the case: R.A.E. Sextant | Mk V | N° 1. Scale ... Vernier ... Two shades (...). Not seen WMB.

The R.A.E. (Royal Aircraft Establishment) Mark V bubble sextant was probably developed around 1920. The Mark I was patented in 1919, the Mark VI was patented in 1923; copies of these patents are in the object file. This example of Mark V (no 1) was the first of this type to be made, that was used by aviators until about 1939.

Details

Category:
Navigation
Object Number:
1922-669
Materials:
wood (unidentified), steel (metal), plastic (unidentified), mirror-glass (silvered), electrical components and fibre (unidentified)
Measurements:
overall: 92 mm x 200 mm x 75 mm, 1.45kg
type:
bubble sextant and aircraft sextant
credit:
Air Ministry Laboratory