Features of 2-place, side by side, coaxial, counterrotating machine with two blades per rotor; fuselage of duralumin is constructed in such way that nose and tail can be removed to make commercial duster or sprayer of standard model; engine is 125-hp Continental; hovering tests conducted free of ground effect at altitude of 2000 ft, and autorotative glides and manuevers made with satisfactory results.
Jensen helicopter's model 21
Am Helicopter
American Helicopter ; 12 , n 10
1948
2 pages
Aufsatz (Zeitschrift)
Englisch
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