Sikorsky Conducts First APU Test on CH-53K

LIGHT OFF: Sikorsky’s CH-53K Heavy-Lift helicopter has conducted the first test of its Auxiliary Power Unit (APU) engine, signaling the program is ready to begin formal integration testing early next year. The APU provides power to a 45-kilovolt-ampere generator, a 58-horsepower hydraulic pump and...

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