Its seeker head used a combination of semi-active laser, millimeter wave, and IR guidance similar to that found on the FGM-148 Javelin anti-tank missile.
The missile has longer range, a more potent warhead, and a "safing" system, allowing naval aircraft to return to ship without jettisoning the munitions.
In May 2004, Lockheed Martin was declared winner of the JCM competition, and received the prime contract for a four-year SDD (System Development and Demonstration) phase.
In 2005 and 2006, Congress began looking into reviving the program when it was found that modernizing the Hellfire would yield higher costs and reduced capability.
In May 2007 the U.S. Army formally brought the program to a close and requested that Lockheed Martin cease all development work.