The Advanced Tactical Laser (ATL) program is a US military program to mount a high energy laser weapon on an aircraft, initially the AC-130 gunship, for use against ground targets in urban or other areas where minimizing collateral damage is important. The laser will be a 100 kilowatt-class chemical oxygen iodine laser (COIL). It is expected to have a tactical range of approximately twenty kilometers and weigh about 5,000–7,000 kg. This program is distinct from the Airborne Laser, which is a much larger system designed to destroy enemy missiles in the boost phase.
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In 2002, the Special Operations Command entered into a contract with the Boeing Company, specifically the Lasers and Electro-Optics Systems division in West Hills, CA, to produce a prototype laser system on a test aircraft. This effort was heavily supported by Boeing-SVS Inc.[1] in Albuquerque, NM.
On January 18, 2006, the U.S. Air Force's 46th Test Wing handed over to Boeing a C-130H Hercules transport aircraft for use in the ATL program. Both the laser and the aircraft have undergone testing in the summer of 2006 culminating in the systems joint combined tests in 2007 with full-scale development afterward.
Boeing announced[2] that on December 4, 2007 the installation of the laser on the C-130H Hercules was completed in preparation for further testing and a demonstration in 2008.
There has been some fear that an airborne laser system could be used to attack targets which would usually be considered 'off-limits', due to the weapon's 'plausible deniability'.[3] Since no such weapon has ever been observed before, its effects would be hard to identify, meaning that there would rarely be conclusive proof of a laser strike. On August 13, 2008 Boeing announced the first test firing of the "high-energy chemical laser" mounted in a Hercules transport plane. The test firing was controlled via the ATL beam control system, which acquired a ground target and fired as "directed by ATL's battle management system." The ATL weighs 12,000 pounds.[4] Boeing said that the laser hit a 3 by 3 foot target at Kirtland Air Force Base, New Mexico.[5]
According to an InsideDefense.com article dated November 5, 2008,[6] there is a recent Air Force Scientific Advisory Board report that states "the Advanced Tactical Laser testbed has no operational utility." That does not mean it's not necessarily a good idea, but that it may need further development. The Air Force Research Laboratory continues to run tests and develop the platform. There is some discussion of converting to solid state lasers from the existing chemical lasers. Being much smaller and lighter, solid state lasers might be deployable on smaller platforms. The existing chemical laser platform is being used to develop more advanced control software and hardware and to reduce problems such as "jitter".
On June 18, 2009 it was announced that the ATL was successfully fired in flight for the first time. The system was fired from a 46th Test Wing NC-130H aircraft while flying over White Sands Missile Range, successfully hitting a target board on the ground.[7]
Aug. 30, 2009 Boeing and the U.S. Air Force "defeated" a ground target from the air with the Advanced Tactical Laser (ATL) aircraft.[8]
