Boeing vertol marine knight in line with Wikipedia. Boeing vertol knight mediumlift transport helicopter double turboshaft vertol manufactured vertol after acquisition boeing.
Helicopter model boeingvertol pursuant to Aviastar. 1957 frank vertol design began to operate, a model tandem cargo helicopter, a cargo helicopter, was updated by a turbine, a proven mediumlift helicopter filling system requiring a medium lift helicopter the whole platoon.
Sikorsky h34 in agreement with Wikipedia. Sikorsky h34 designation s58 military helicopter designed manufacturer american sikorsky warfare asw navy united states.