main rotor blade area
31Bell 407 — Infobox Aircraft name = Bell 407 caption = Bell 407 at Airport Niederrhein, Germany type = Multipurpose utility helicopter manufacturer = Bell Helicopter Textron designer = first flight = introduced = 1996 retired = status = Active service… …
32Bell 429 — Infobox Aircraft name= Bell 429 caption= Bell 429 Mock up type=Multipurpose utility helicopter manufacturer=Bell Helicopter Textron designer= first flight= February 27 2006 [http://www.flug revue.rotor.com/FRTypen/FRB429.htm Flug Revue] ]… …
33Environmental effects of wind power — Compared to the environmental effects of traditional energy sources, the environmental effects of wind power are relatively minor. Wind power consumes no fuel, and emits no air pollution, unlike fossil fuel power sources. The energy consumed to… …
34Eurocopter AS365 Dauphin — SA 365 Dauphin 2 AS365 Dauphin French Navy AS365 F Dauphin rescue helicopter on the deck of the Charles De Gaulle carrier (5 June 2004) …
35AH-1 Cobra — For an overview of the whole Huey family of aircraft see Bell Huey Infobox Aircraft name=AH 1 HueyCobra/Cobra caption=A Bell AH 1G HueyCobra type=Attack helicopter manufacturer=Bell Helicopter designer= first flight=7 September 1965… …
36HAL Dhruv — Dhruv Dhruv helicopter of the Indian Air Force Sarang Helicopter Display Team arriv …
37Westland 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=… …
38Bell 412 — For an overview of the whole Huey family of aircraft see Bell Huey Infobox Aircraft name=Bell 412 caption=Norwegian Bell 412SP helicopters taking part in the NATO exercise Strong Resolve 2002 type=Multipurpose utility helicopter manufacturer=Bell …
39Westland 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… …
40AH-56 Cheyenne — Infobox Aircraft name= AH 56 Cheyenne caption= AH 56 Cheyenne during testing type= Attack helicopter manufacturer= Lockheed designer= first flight= 21 September 1967 introduced= retired= status= Canceled primary user= more users= produced= number …
