ISBN 0-7643-0190-X. Markman, Steve, and William G. Holder. Straight Up A History of VerticalFlight. Schiffer military/aviation history. Atglen, PA: Schiffer Pub, 2000
Astronautics). pp. 66. ISBN 1-56347-188-4. "Reduced disk loading in the vertical mode also results in lower downwash and improved capability for autorotation
^ Frawley 2003, p. 151. ^ "NOTAR Fleet Marks 500,000 Flight Hours". American Helicopter Society. Retrieved: 25 February 2007. ^ "The Boeing Logbook: 1983-1987"
銅星章(Vデバイス(英語版)付) 戦功十字章(英語版)(イタリア) 保国勳章(英語版)統一章(韓国) 1962 AHS International VerticalFlightSociety "Honorary Fellow" 1974 Army Aviation Association of America Hall