F135 Engine Exceeds 12,000 Engine Test Hours as Pratt & Whitney Prepares to Deliver First Production Engines

The Pratt & Whitney F135 engine has surpassed 12,000 engine test hours as part of the system development and demonstration (SDD) phase of the development program.

This achievement, in addition to the 3,600 test hours accumulated during the F-35 concept demonstration program, puts F135 engine test hours at more than 15,600. Pratt & Whitney is a United Technologies Corp. (NYSE:UTX) company.

"Pratt & Whitney is proud of the F135's performance in the successful ground and flight test programs," said Warren Boley, vice president, Pratt & Whitney F135 engine programs.

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