Operating principles of most important instruments, including relative accuracy of bubble sextant with observations made from stationary platform compared with observations made from moving plane, Weems aircraft plotter used by Army and Navy, Gatty ground speed and drift indicator and dead reckoner (VC-O), published by hydrographic office.
Present status of air navigation
U S Naval Inst -- Proc
United States Naval Institute -- Proceedings ; 59 , n 361
1933
6 pages
Aufsatz (Zeitschrift)
Englisch
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