01206nam1-22003491i-450-99000025893040332120001010000025893FED01000025893(Aleph)000025893FED0100002589320001010d--------km-y0itay50------baitay-------001yyAIR navigationpublished under the supervision of the Training Division, Bureau of Aeronautics, U. S. Navy.New YorkMcGraw-Hill1943-3 v. 29 cmFlight preparation training series0019900002636905033212001 1. : Introduction to earth; XI, [2], 79 p.ill.clc.:035-010/10019900002637104033212001 3. : Dead Reckoning and lines of position;[XII], 77, [1], A-ii p.clc.:035-010/3Meccanica del voloTRAINING DIVISION BUREAU OF AEROAUTICS U. S. NAVYITUNINARICAUNIMARCBK99000025893040332109 035-010/3478DINAE09 035-010/2478DINAE09 035-010/1478DINAEDINAEAir Navigation60584UNINAING01