Lockheed Martin's F-35 stealth fighter is equipped with the world's most powerful fighter engine. It only has one of them, though, and President Donald Trump wants it to have two. That's no small ...

PARIS—A key milestone for the Pentagon’s program to upgrade the F-35 engine has been pushed back a year, raising questions about the overall timeline of the effort. The engine upgrade will reach ...

If you are an investor in United Technologies stock -- or in Lockheed Martin for that matter -- I've got some good news for you, and some bad news, too. The good news: As of today, it's been more than ...

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Trump proposed upgrading the F-35 to a twin-engine F-55 and modernizing the F-22 to a “Super” F-22. Aviation experts question the feasibility of these upgrades. While speaking on Thursday in Doha, ...

The U.S. Dept. of Defense made a $2.88-billion award to Pratt & Whitney in a modification to a prior contract for manufacturing 141 more F135 engines. Those engines are the power source for the F-35 ...

Trump wants an F-35 stealth fighter with two engines because he doesn't like single-engine planes. He wants to call this new twin-engine F-35 the F-55. A former F-35 program manager told BI that this ...