By Gunsallus Clifford T.   Bowes Michael A.   in Journal of the American Helicopter Society

ISSN:2161-6027|30|1|28-34

AHS International‎(1985)‎

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By Gunsallus Clifford T.   Nagy Edward   Stennett Patrick G.   Flannelly William G.   in Journal of the American Helicopter Society

ISSN:2161-6027|35|2|35-41

AHS International‎(1990)‎

Access to resources Favorite 10.690475