Editing Alliant Techsystems (section)

====AN/AAR-47 Missile Approach Warning System====
The [[AN/AAR-47 Missile Approach Warning System]] (MWS) is used on slow moving aircraft such as helicopters and military transport aircraft to notify the pilot of threats and to trigger the aircraft's countermeasures systems. Its main users are the U.S. Army, Navy and Air Force, but is also operated by other countries. Originally developed by [[Loral Space & Communications]], it has been solely a product of ATK since 2002. The AN/AAR-47 passively detects missiles by their infrared signature, and uses algorithms to differentiate between incoming missiles and false alarms. Newer versions also have laser warning sensors and are capable of detecting a wider range of threats. After processing the nature of the threat, the system gives the pilot an audio and visual warning, and tells the direction of the incoming threat. It also sends a signal to the aircraft's infrared countermeasures system, which can then for example deploy flares. The development of the original AN/AAR-47(V)1 began in 1983 by Loral. ATK became a second production source in the mid 90s and eventually became the primary contractor. In 1998 ATK began production of the improved AN/AAR-47(V)2, which added laser warning functionality.<ref name="AAR1">{{cite web|url=http://www.globalsecurity.org/military/systems/aircraft/systems/an-aar-47.htm|title=AN/AAR-47 Missile Approach Warning System|author=John Pike|access-date=June 12, 2015}}</ref>