The Lockheed Martin (Ft. Worth, Texas) F-35 Lightning II successfully completed the first stage of its airborne refueling tests during the aircraft's 34th flight yesterday. Aerial refueling capability ...

The stealth fighter gets more lethal thanks to joint defense.

WASHINGTON (Reuters) - U.S. officials said on Wednesday they were nearing a fix for the engine that powers Lockheed Martin Corp's F-35 fighter jet and the United Technologies Corp unit that makes the ...

A top US Air Force technologist confirms the potential exists after 2013 to greatly improve the fuel efficiency of the F-35 Joint Strike Fighter engine by… A top US Air Force technologist confirms the ...

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 ...

WASHINGTON (Reuters) - The engine blade crack that prompted the U.S. military to ground all 51 F-35 fighter jets was over half an inch long, according to three sources familiar with the matter, but it ...