NAVAIR and Sikorsky put engine issues to bed (updated)
A joint collaboration between NAVAIR and Sikorsky has led to the pair solving CH-53K King Stallion engine problems that have long been troubling the programme.
One of the most significant technical hurdles, first identified by NAVAIR in 2018, was exhaust gas re-ingestion (EGR) which can cause excessive life cycle costs, engine overheating and engines stalling.
Sikorsky told Shephard in January that it had assigned a ‘dedicated team’ of engineers to help resolve the problem and had expected to have a ‘demonstrated solution’ in place before the end of 2019.
‘Our early investment in the CH-53K all digital design enabled
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