Airborne Laser Test Bed (ALTB)
Towards the ultimate goal of developing a boost-phase intercept capability for the Ballistic Missile Defense System, the MDA used the Airborne Laser Test Bed (ALTB) for laser research and development. Using two solid state lasers and a megawatt-class Chemical Oxygen Iodine Laser housed aboard a modified Boeing 747-400 aircraft, it used directed energy to negate threat ballistic missiles. Following the completion of 2011 experiments, the ALTB was then used as a national test platform for testing directed energy technologies for the Department of Defense in coordination with the Director of Defense Research and Engineering.