July 1, 201312 yr Bell 47/Bell H-13 Sioux http://en.wikipedia.org/wiki/Bell_47 http://en.wikipedia.org/wiki/H-13_Sioux "The Bell H-13 Sioux was a two-bladed, single engine, light helicopter built by Bell Helicopter." --Wikipedia Thousands of these light observation helicopters were built; many were used as medical evacuation helicopters (yes, this is the one from M*A*S*H); they were used by dozens of countries. Some appear to still be in use by coast guards, etc. ANW HUD-4 v1.2
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