By Granger Gordon   Mayerjak Robert   in Journal of the American Helicopter Society

ISSN:2161-6027|32|2|51-55

AHS International‎(1987)‎

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By Mayerjak Robert J.   Singley George T.   in Journal of the American Helicopter Society

ISSN:2161-6027|23|4|10-17

AHS International‎(1978)‎

Access to resources Favorite 10.613018