One of most significant years in history of aviation; at beginning industry was owned by comparatively small number of men, at end, by public and banking groups; demand for stocks increased; mergers have some disadvantages; very real increase in prosperity of air-mail lines; improvement in details of design; N.A.C.A. cowling for radial engines; Handley Page slot; most favorable outlook for 1929.
The industry's progress during 1928
Aviation
Aviation ; 26 , n 1
1929
2 Figs.
Aufsatz (Zeitschrift)
Englisch
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