Statistics and charts given; author submits figure of 256 thousand million dollars as total expenditure that has been incurred up to less than year ago, since Wright brothers made their contribution towards aviation. 38th Wilbur Wright Memorial Lecture.
Some aspects of expenditure on aviation
Roy Aeronautical Soc -- J
Royal Aeronautical Society -- Journal ; 54 , n 475
1950
28 pages
Article (Journal)
English
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