Tests made in 24-ft open jet wind tunnel, with 12-ft diam rotor having untwisted blades of 6-in. chord; object was to compare forces on rotor with calculated values; author regards tandem rotor helicopter with two equal rotors rotating in opposite directions at same tip speed, as typical multirotor helicopter, and discusses this type only. Before joint meeting of Inst Aeronautical Sciences and Roy Aeronautical Soc.
Research on helicopters at RAE -- With special reference to stability of multi-rotor helicopters
Aeroplane
Aeroplane ; 76 , n 1984 ; p 693-694
1949
2 pages
Article (Journal)
English
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