Comparison of current helicopter, advanced helicopter, and low-disk loading VTOL shows that latter suffers empty weight disadvantage which makes it uneconomical from standpoint of payload lift capability over 600 nautical mi range; however, when payload productivity is considered, advanced VTOL shows advantage for mission greater than 200 nautical mi.
Relative worth of VTOL aircraft types
Am Helicopter Soc -- J
American Helicopter Society -- Journal ; 5 , n 3
1960
6 pages
Aufsatz (Zeitschrift)
Englisch
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