Pigs.9,10 N.A.C.A. Technical Memorandum No. 664 IMMEO] Seriously damaged Slightly damaged Destroyed er^-—i Coiroerc i a 1 Training =L Tra scellaneous Mi 0 50. 100 150 200 Totrl Ko. of accidents Total accidents - Commercial \ Training \ Miscellaneous Feb. April June Aug. Oct. Dec, Number of… … Feb. April June Aug. Oct. Dec. Fig. 10 Number of flying hours in 1930 for different m-onths and different kinds of flight.
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