Sikorsky Begins Ground Tests Of First Ch-53K Heavy-Lifter

Sikorsky has begun ground runs of the U.S. Marine Corps’ CH-53K heavy-lift helicopter and is aiming for a first flight by the end of the year. The ground test vehicle (GTV), which will never fly, achieved “bare head light off” — engines running and rotor hubs turning, but no blades attached — on Jan...

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