The Lockheed XH-51 was an experimental rigid-rotor helicopter developed in the 1960s to test high-speed rotary-wing flight ...

The X-59 has flown on nine more occasions, most recently on April 14 when it accomplished some of its biggest feats to date ...

Spy aircraft typically have the highest operational ceiling, although these values, and often the aircraft themselves, are ...

Lockheed Martin Corp (NYSE:LMT) reported lower quarterly profit and negative free cash flow in its first quarter of fiscal ...

Supersonic successor: Lockheed Martin Aeronautics' new design for a quiet supersonic passenger airplane draws on its work with NASA on the X-59.

The Pentagon just dropped $844M on F-35 tech. But what is the hidden environmental cost of America’s latest defense spending ...

Lockheed Martin has named Orlando “OJ” Sanchez president of its aeronautics business, succeeding Greg Ulmer, who will retire ...

The USAF is already looking to replace its most advanced fighter jets and bombers, even as it upgrades its B-52s and orders ...

Lockheed Martin has released more details about its Mako hypersonic missile that the company is building for the US Air Force and international customers. The multi-mission missile that flies at Mach ...

Lockheed Martin is helping to develop an early, extra layer to the multi-domain, layered shield that enhances protection from ...