NAVAIR engineers help solve Sikorsky CH-53K exhaust re-ingestion problem

Engineers from Naval Air Systems Command (NAVAIR) helped Sikorsky solve the CH-53K King Stallion heavy-lift helicopter’s gas re-ingestion problem. The US Marine Corps (USMC) helicopter gets its heavy lifting capacity from three General Electric T-408 engines, rated at 7,500shp (5,520kW) each. However, Sikorsky has struggled to integrate the big engines, with exhaust gas re-ingestion being the “most troublesome” issue, NAVAIR says on 17 December.

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