Orbital originally developed the MRT multiple-launch-mode target vehicle over a two-year period under contract to the U.S. Army Space and Missile Defense Command (USASMDC), according to specifications that require launch capability from ground, air, or sea. The first flight in April 2005 demonstrated the air-launch mission configuration executed via parachute extraction and descent from an Air Force C-17 cargo aircraft, which is necessary to support Army Theater High Altitude Area Defense (THAAD) tests. The air-launch demonstration was followed by four consecutive ground-launch missions for Aegis BMD tests, an air-launch mission in June 2008 for THAAD followed by an additional ground launch mission for Aegis BMD.
Orbital is one of the country's most experienced developers and operators of missile defense-related launch vehicles. The company supports virtually all of the country's major missile defense programs with highly-reliable and cost-effective target vehicles. In addition to the Aegis BMD, Orbital's target vehicles are used to test MDA's Ground-based Midcourse Defense system (GMD), as well as the U.S. Army's Patriot PAC-3 and THAAD system. Orbital also produces the "Coyote" ramjet-powered sea-skimming supersonic target vehicle used to test U.S. Navy's ship self-defense systems.

