By Hansford Robert E.   in Journal of the American Helicopter Society

ISSN:2161-6027|39|4|70-81

AHS International‎(1994)‎

Access to resources Favorite 17.15427

By Hansford Robert E.   in Journal of the American Helicopter Society

ISSN:2161-6027|32|3|43-53

AHS International‎(1987)‎

Access to resources Favorite 17.15427

By Hansford Robert E.   in Journal of the American Helicopter Society

ISSN:2161-6027|24|4|3-11

AHS International‎(1979)‎

Access to resources Favorite 17.15427

By Hansford Robert E.   in Journal of the American Helicopter Society

ISSN:2161-6027|31|2|58-65

AHS International‎(1986)‎

Access to resources Favorite 17.15427

By Hansford Robert E.   Vorwald John   in Journal of the American Helicopter Society

ISSN:2161-6027|43|1|76-87

AHS International‎(1998)‎

Access to resources Favorite 13.919346