By Biggers James C.   Orloff Kenneth L.   in Journal of the American Helicopter Society

ISSN:2161-6027|20|1|2-10

AHS International‎(1975)‎

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By Ballard John D.   Orloff Kenneth L.   Luebs Alan   in Journal of the American Helicopter Society

ISSN:2161-6027|25|1|30-35

AHS International‎(1980)‎

Access to resources Favorite 11.429775