Parametric studies carried out by Vertol Div of Boeing Co of configurations suitable for several heavy lift missions have shown that transport helicopter, with 12 to 20 ton heavy lift capacity and capability for simultaneous internal and external loading, would provide versatile, multipurpose vehicle for many missions with radii from 0 to 500 nautical mi; results obtained.
Design considerations of heavy lift helicopters
Am Helicopter Soc -- J
American Helicopter Society -- Journal ; 8 , n 1
1963
7 pages
Article (Journal)
English
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