Will Support First 12 Production F-35 Lightning IIs

Pratt & Whitney was awarded a production contract worth up to $491 million (including options) for F135 propulsion systems to power the F-35 Lightning II. This second F135 low rate initial production contract will support 12 F-35 production aircraft, including six short-takeoff/vertical-landing (STOVL) and six conventional take-off/landing (CTOL). Propulsion system deliveries are scheduled to begin in third quarter 2009.

"This is our second production contract for CTOL engines and the introduction of the first production deliveries for the STOVL configuration," said Bill Gostic, vice president, Pratt & Whitney F135 engine programs. "This milestone indicates the continued maturity of the F135 engine powering the F-35 today, and validates the confidence our customer has in the CTOL and STOVL propulsion systems."

In addition to F135 propulsion systems, the contract covers program management, initial logistics support, engineering assistance, spare propulsion systems and parts, and production tooling. This award is one in a series of milestones for the F135 engine program, including exceeding 10,000 ground test hours as part of the system development and demonstration program; logging 51 successful flight tests and more than 54 flight test hours of the F135-powered CTOL F-35 aircraft; and completing 13 flights of the F-35B powered by Pratt & Whitney's F135 STOVL propulsion system.

Rated at more than 40,000 pounds of thrust, the F135 is currently the most powerful fighter engine ever built, and an evolution of the F119 engine for the F-22 Raptor. By the time the F-35 enters operation, the F119 engines will have logged more than 480,000 flight hours.

In addition, the F135 will have logged 16,000 flight hours and more than 17,000 ground test hours. The ground and flight test experience demonstrate the maturity and the associated reliability of the F135 engine for armed forces around the world.

The F135 STOVL propulsion system team consists of Pratt & Whitney, the prime contractor with responsibility for the main engine and system integration; Rolls-Royce of the United Kingdom, which provides lift components for the STOVL F-35B; and United Technologies Corp.'s Hamilton Sundstrand unit, provider of the engine control system and gearbox.

FMI: www.pratt-whitney.com, www.jsf.mil