Lockheed Martin Missiles and Fire Control Arrowhead) is now being fielded to United States Army and foreign customers. The company also is a major supplier of Electro-Optic systems to the Joint Strike Fighter (JSF), officially known as the F-35 Lightning II. The company has a long history from the Vought years (later half of the 20th Century) of being the number one supplier of missiles and advanced weapon systems to the US Army which continues to this day. Lockheed Martin Missiles and Fire Control Lockheed Martin Missiles & Fire Control (LM MFC) is a Lockheed Martin business unit based in the Dallas suburb of Grand Prairie,
General Dynamics F-111 Aardvark for the TFX was provided to industry in October 1961. In December, proposals were received from Boeing, General Dynamics, Lockheed, McDonnell, North American and Republic. The evaluation group found all the proposals lacking, but Boeing and General Dynamics were selected to submit enhanced designs. Boeing's proposal was recommended by the selection board in January 1962, with the exception of the engine, which was not considered acceptable. Switching to a crew escape capsule, instead of ejection seats and alterations to radar and missile storage were also needed. Both companies provided updated proposals in April 1962. Air Force reviewers favored Boeing's offering,