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Home Defence & Military News Air Force News

F135 Program Reaches 5,000 SDD Test Hours, Remains on Track to Support JSF's First Flight

by Editor
April 26, 2006
in Air Force News
2 min read
0
14
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Pratt & Whitney, EAST HARTFORD: Pratt & Whitney's F135 engine program has achieved more than 5,000 hours of System Development and Demonstration (SDD) ground testing and is on schedule to support the first flight of the F-35 Joint Strike Fighter (JSF) this fall. The 5,000 SDD hours are in addition to the more than 3,600 hours accumulated during the concept demonstration phase of the F-35 program, reflecting the F135's maturity and reliability. Pratt & Whitney is a unit of United Technologies Corp. 
 
Most recently, the F135 team completed the accelerated mission test required for flight clearance. This test is considered among the most challenging that development engines undergo, and initial hardware reviews show the engine performed exceptionally. The F135 program is on schedule to complete all flight clearance testing next month. 
 
“The ground test program for the F135 has been extremely successful, and the engine continues to meet or exceed expectations,” said Bill Gostic, Vice President of F135 Engine Programs for Pratt & Whitney. “The F135 program continues to be on plan as we lead up to the F-35's first flight later this year.” 
 
There are currently nine ground test engines in the F135 SDD program. The first flight test F135 engine was delivered to Lockheed Martin ahead of schedule in December 2005. The engine was installed in the first Conventional Take Off and Landing variant F-35 aircraft in February. 
 
The technologically advanced F135 engine is an evolution of the highly successful F119 engine for the F-22 Raptor. Together the F135 and F119 will have logged approximately 1 million flight hours before the F-35's introduction into operational service in 2012. 
 
The F135 propulsion system team consists of Pratt & Whitney, the prime contractor with responsibility for the main engine and system integration; Rolls-Royce, providing lift components for the STOVL F-35B variant; and Hamilton Sundstrand, provider of the F135's control system, external accessories and gearbox.  
 
Pratt & Whitney is a world leader in the design, manufacture and service of aircraft engines, space propulsion systems and industrial gas turbines. United Technologies provides high-technology products and services to the aerospace and building industries. 

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