Requirements and variants of Alvis Leonides 23.HM for Bristol 171 helicopter; details of power plant and transmission shown in cutaway drawing and photographs. (see also Aeroplane v 76 n 1966 Feb 11 1949 p 158-61)
Power for helicopters
Flight
Flight ; 55 , n 2094 ; p 166-170
1949
5 pages
Aufsatz (Zeitschrift)
Englisch
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