Force United States Navy United States Army Surviving aircraft Specifications (QH-50C) See also References Notes Bibliography Apostolo, Giorgio. The Illustrated Encyclopedia of Helicopters. New York: Bonanza Books, 1984. . . Taylor, John W.R. Jane's All The World's Aircraft 1969–70. London: Jane's Yearbooks, 1969. External links QH-50 DASH History on Gyrodyne Helicopters site QH-50 DASH in U.S. Navy Service QH-50 DASH in Japanese Navy Service Gyrodyne DSN/QH-50 DASH on designation-systems.net Gyrodyne DNS/QH-50 DASH Production List in helis.com database H-50 1950s United States helicopters 1950s United States military utility aircraft Single-turbine helicopters Coaxial rotor helicopters Unmanned aerial vehicles of the United States Unmanned helicopters United States military helicopters Aircraft first flown in 1959