Third Stream

摘要

The P&W F135 is a larger-diameter, higher-airflow derivative of the company's F119 engine which powers the F-22 Raptor. The F135 was chosen for the $4 billion System Development and Demonstration contract on October 26, 2001, by the US Department of Defense because both Lockheed Martin and Boeing had selected it (in the form of augmented F119s) to power their respective X-35 and X-32 Joint Strike Fighter (JSF) demonstrators. Lockheed Martin won the JSF contract with its X-35. The Pentagon also found attractive the fact that the F135 shared a high degree of commonality with the F119 engine, two of which power each F-22 Raptor.