Firefighting Frontlines - The U.S. Forest Service defies the flames with a fleet of around 125 contract helicopters.
Rotor & wing ; 48 , 8
2014
Article (Journal)
Unknown
British Library Conference Proceedings | 1995
|Online Contents | 1998
Fleet Air Arm Helicopters : since 1943
SLUB | 2011
|Online Contents | 1995
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