The Boeing YAL-1 Airborne Laser is a megawatt-class chemical oxygen iodine laser (COIL) mounted inside a modified Boeing 747-400F. It is a high-energy laser weapon system for the destruction of tactical theatre ballistic missiles, which is carried on a modified Boeing 747-400F freighter aircraft. The Airborne Laser (ABL) is being developed by the Air Force Research Laboratory and Team ABL, comprising Boeing, TRW and Lockheed Martin. The YAL-1s primary function is to destroy tactical ballistic missiles (TBMs), similar to the Scud, while in boost phase. The YAL-1A was designated YAL-1A in 2004 by the U.S. Department of Defense. The YAL-1A underwent modification including installation of the turret in the aircrafts nose and modifications to accept the laser, optics and computer hardware. In July 2004, the modified YAL-1A took the first series of test flights. The aircraft returned to airworthiness certification. In November 2004, all six modules of the COIL laser were successfully fired for the first time. In August 2005, the ABL completed a series of flight tests demonstrating the performance of the beam and flight control systems. The BILL laser was delivered in January 2006. On February 2007, the ABL began a series of flight tests, including the first in-flight firing of the beam and flight control systems. The first prototype is scheduled for completion in late 2008 with high-power testing to begin by the end of the year. In 2009, there will be a test of missile interception. Dimensions: 14"L x 6"W x 6"H