There are 3 commercial scheduled helicopter airlines; New York Airways, Chicago Airways and Los Angeles Airways operations of which are conducted in accordance with Visual Flight Rules (VFR) in Visual Meteorological Conditions (VMC) and those with Instrument Flight Rules (IFR) in Instrument Meteorological Conditions (IMC); establishment of helicopter routes and other measurements taken; examples of experience gained.
Lessons gained in helicopter air traffic control from federal aviation agency activities
Roy Aeronautical Soc -- J
Royal Aeronautical Society -- Journal ; 66 , n 620
1962
4 pages
Aufsatz (Zeitschrift)
Englisch
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