Explains principles upon which flapping flight of birds depend and shows how velocities, power expended, and gliding angles can be approximately calculated; birds are considered to be flying on horizontal course with constant velocity. See also Notes by Oscar F. Gnosspelius, pp. 543-547, 1 fig.
The flight of birds
Roy. Aeronautical Soc. -- Jl
Royal Aeronautical Society -- Journal ; 29 , n 178
1925
9 pages
6 Figs.
Article (Journal)
English
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