September 20, 2010 (by Erin Dick) - Pratt & Whitney’s F119 engine powering the F-22 Raptor has successfully completed 8,650 total accumulated cycles, or TACs, representing the first time a fifth generation fighter engine has demonstrated the ability to meet full life requirements.
A Pratt and Whitney F119 engine runs in full afterburner during an engine test in the "hush house" at Tyndall AFB. The base is the first to receive upgrades to its engine test facilities, allowing maintainers to accommodate and test the F/A-22 Raptor's 35,000-pound thrust-class engine. [U.S. Air Force photo by 2nd Lt. Albert Bosco]
Production engine P730210 has completed Accelerated Mission Testing (AMT) simulating 15 years of operational service, compressed into four years of test and evaluation. The engine ran for nearly 1,700 hours, accumulating 8,650 cycles. The F119 has accumulated more than 300,000 hours and is the only fifth generation engine in operational use today.
"This milestone marks a significant accomplishment for the only operational fifth generation fighter engine in service today and demonstrates the maturity of this highly advanced propulsion system," said Bennett Croswell, vice president of F135/F119 Engine Programs. "This is a clear and unequivocal demonstration of the outstanding durability and reliability of the F119 engine system and all of its components."
Following completion of the testing, the F119 engine was disassembled and inspected revealing all the parts in excellent condition.
"This engine has the most impressive durability results of any engine I have reviewed in my career and is a very good indicator for the future performance of the Pratt & Whitney F135 engine powering the F-35," said Tom Johnson, chief engineer of the F135 Program and a 31-year veteran of several Pratt & Whitney engine programs. "The F119 engine shares its mature, proven core with the F135 engine, and this common technology derived from the proven F119 offers a significant advantage to the F135 with respect to maturity and single engine safety."
A significant portion of the hardware from P730210 will be re-installed for continued testing beyond the original design specification requirements and will provide the foundation for additional cost savings and increased capability for the USAF under an F119 life extension program.
"Pratt & Whitney is proud of the exceptional record of the F119 engine, and the experiences and capabilities demonstrated by the F119 deliver built-in maturity for the F135 engine," Croswell said.
Pratt & Whitney continues to deliver both F119s and F135s from the fifth generation production line, with approximately 350 F119 engines and 9 F135 engines delivered to date.