Details of Pikes Peak flying school conducted by R. Rhea of Colorado Springs who is an invalid; bookkeeping system; depreciation set high so as to increase margin of safety by having new equipment all of time; students compelled to fly definitely defined routes; health regulations.
Invalid conducts flying school
U. S. Air Service
United States Air Services ; 13 , n 8
1928
Aufsatz (Zeitschrift)
Englisch
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