Napier Gazelle engine installed in prototype of Westland Wessex naval helicopter designed primarily as power unit for helicopters, but can also be used as propeller/turbine engine; advantage for helicopter propulsion is that it can maintain high power output whether helicopter is in hovering or in forward flight. (See also Engineering v 183 n 4758 May 17 1957 p 629-30; Am Helicopter v 47 n 7 June 1957 p 10-3, 15-6)
Free-turbine engine for helicopters with shaft drive
English Elec J
English Electric Journal ; 15 , n 3
1957
11 pages
Article (Journal)
English
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