tail-rotor blade
71OH-6 Cayuse — Infobox Aircraft name= OH 6 Cayuse/ Loach caption= Right side view of the OH 6 Cayuse helicopter in flight. type= Light observation helicopter manufacturer= Hughes Tool Co. Aircraft Division designer= first flight= 27 February 1963 introduced=… …
72Westland Westminster — Infobox Aircraft name=Westminster caption= type=Heavy lift helicopter manufacturer=Westland Aircraft designer= first flight=15 June 1958 introduced= retired= status=Cancelled project primary user= more users= produced= number built=2 unit cost=… …
73Boeing-Sikorsky RAH-66 Comanche — RAH 66 Comanche …
74YH-32 Hornet — Infobox Aircraft name= YH 32 Hornet caption=Hiller YH 32 Hornet in museum display type=Experimental helicopter manufacturer=Hiller Aircraft designer= first flight=1950 introduced=1954 retired= status= primary user=United States Army more… …
75Westland 30 — infobox Aircraft name = Westland 30 type = Helicopter manufacturer = Westland Aircraft caption = A Westland 30 100, the initial production model designer = first flight = 10 April 1979 introduced = 1981 retired = status = primary user = British… …
76MD Helicopters MD Explorer — MD Explorer One of 5 MD 900/902 of the Baden Württemberg State Police Role Light …
77Kamov Ka-60 — Infobox Aircraft name= Ka 60 Kasatka caption= Ka 60 1 at Moscow Air Show, 2001 type= Transport/utility helicopter manufacturer= Kamov designer= first flight= 24 December, 1998 introduced= retired= status= primary user= Russian Air Force more… …
78Brownout (aviation) — In aviation, a brownout (or brown out ) is an in flight visibility restriction due to dust or sand in the air.cite book publisher = National Transportation Safety Board title = Special Investigation Report on Emergency Medical Services Operations …
79Sikorsky S-92 — Infobox Aircraft name= S 92 / H 92 caption= A CHC Helikopter Service S 92 type= Medium lift transport/utility helicopter national origin = United States manufacturer= Sikorsky Aircraft designer= first flight= December 1998 introduced= 2004… …
80Bell Huey — The Bell Huey family of helicopters includes a wide range of civil and military aircraft produced since 1956 and still manufactured in 2008.This H 1 family of aircraft includes the utility UH 1 Iroquois and the derivative AH 1 Cobra attack… …
