Analysis of figures taken from Bureau of Census or from Aeronautics Branch of Department of Commerce; tables show classification of licensed and identified aircraft as of Mar. 30 and July 15, 1929, by state, periodic airplane license and identification, and commercial aircraft and engine production by type; chart gives curves for American airplane production, 1921-1929; rate of increase remarkably steady over past four years, with average rate of increase for non-military aircraft alone of 130 per cent per annum; military production fading into insignificance.
Production and license data
Aviation
Aviation ; 27 , n 14
1929
4 pages
3 Figs.
Article (Journal)
English
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