Pratt & Whitney F135 Engine Achieves 8,000 SDD Ground Test Hours

Released on Wednesday, August 1, 2007
SDD - System Development and Demonstration
EAST HARTFORD, Conn., August 1, 2007 - The Pratt & Whitney F135 engine exceeded 8,000 system design and development (SDD) ground test hours this week. This achievement, in addition to the 3,600 test hours accumulated during the F-35 concept demonstration program, puts total engine test program hours logged at more than 11,000. Pratt & Whitney is a United Technologies Corp. (NYSE:UTX) company.

"This testing milestone, combined with the successful F-35 flight test program, demonstrates the maturity, flexibility and reliability of Pratt & Whitney's F135 propulsion system," said Bill Gostic, vice president, Pratt & Whitney F135 engine program. "We remain focused on exceeding our customers' expectations by assuring the flawless performance of the F135."

Achieving 8,000 SDD ground test hours is one of a series of milestones for the F135 propulsion system development program. Pratt & Whitney's F135 powered the F-35 Lightning II's first flight in December 2006, and continues to power the flight test program with 19 flight tests to date and more than 20 flight test hours.

Pratt & Whitney's F135 engine is an evolution of the F119 engine for the F-22 Raptor. Together the F135 and F119 will have logged more than 600,000 hours before the F-35's introduction into operational service in 2012. Rated at more than 40,000 pounds of thrust, the F135 is the most powerful fighter engine ever built.

Pratt & Whitney is a world leader in the design, manufacture and service of aircraft engines, space propulsion systems and industrial gas turbines. United Technologies, based in Hartford, Conn., is a diversified company providing high technology products and services to the global aerospace and building industries.

Source: Pratt & Whitney F135 Engine Achieves 8,000 SDD Ground Test Hours

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