P&W completes PW4090 endurance run

1996-01-10T00:00:00

PRATT & WHITNEY HAVE completed an 850-cycle endurance run on the PW4090 growth engine for the Boeing 777. The 400kN (90,000lb)-thrust engine was run at its maximum turbine-inlet temperatures and was intentionally unbalanced in a ground run simulating between two and six years of airline operations "under maximum conditions", P&W ...

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