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Errors of Some Sextant Sights with a Bubble, from the Queen Elizabeth 2

Published online by Cambridge University Press:  18 January 2010

Frances W. Wright
Frances W. Wright
Affiliation:
(Smithsonian Institution, Astrophysical Observatory)
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As a passenger on the Queen Elizabeth 2 on a westward crossing of the Atlantic in late May 1972, I took sextant sights with my standard marine Plath sextant and also with the ‘bubble’ attachment for this instrument. Inspired by Francis Rogers' discussion of the development of bubble sextants, my project was to compare the accuracy of the bubble sights with that of the conventional marine sextant sights, which require the horizon.

Type
Forum
Information
The Journal of Navigation , Volume 26 , Issue 2 , April 1973 , pp. 236 - 238
Copyright
Copyright © The Royal Institute of Navigation 1973

References

REFERENCES

1Rogers, Francis M. (1971). Precision Astrolabe, Portuguese Navigators and Transoceanic Aviation, Academia Internacional da Cultura Portuguesa, Lisboa.Google Scholar
2Dunlap, G. D. and Shufeldt, H. H. (1969). Dutton's Navigation and Piloting. U.S. Naval Institute, Annapolis, Maryland, U.S.A.Google Scholar