. "high-output" . "Bomber B" . . . "\\\"high-power\\\" powerplant system" . "Bomber B" . . . "high power output aircraft engines" . . "serious problems in developing" . "\\\"high-power\\\" engines" . "\\\"high-output\\\"" . . "equal to or more than the 1,500 kW (2,000 PS) figure" . . "had so much trouble crafting into combat-reliable aviation powerplants" . "over-1,500 kW" .