The JSF (Joint Strike Fighter) program aims to propel vectored thrust aircraft such as the Lockheed F-35 and F-22 or the Boeing F-32.

-To do this, P-W has presented the modified F-119, which is renamed JSF-119 with vectoring nozzles and outlets for the F-22.

“JSF-119 en banco”

General Electric together with Allison and RR presented the YF-120 bypass engine, the YF-120F.

-They had also presented another candidate, the F110.

“YF-120F”

-Currently they are in different stages of development.

“Modified P-W F-119”

-A large fan for Vtol/Stol take-off is mounted on the front of the F-119 engine.

“Contra-rotating fan”

-For take off or vectored flight maneuvering, the F-35 aircraft's experimental version X-35B, has panels in the front -behind the cockpit- for the entry of air for the vertical lift fan, and at the bottom there are the exit panels. As we can see in the picture below.

-The engine's exhaust nozzle, in the tail, is curled downward.

“X-35B”

-The Lockheed Martin F-35 and F-32 models with Pratt & Whitney engines have different mechanical control systems. That is, two solutions for submission to the JSF program versions -611 and -614.