The Oerlikon/Martin Marietta air defense anti-tank system (US designation MIM-146 ADATS) is a dual-purpose short range surface-to-air and anti-tank missile system based on the M113A2 vehicle. The ADATS missile is a laser-guided supersonic missile with a range of 10 kilometers (6.2 miles), with an electro-optical sensor with TV and forward looking infrared (FLIR). The carrying vehicle also has a search radar with an effective range of over 25 kilometers (16 miles).
The first firing of an ADATS missile occurred in June 1981. Canada was the launch customer for the system with 36 units on the M113 chassis ordered for the Canadian Army in 1986. The system was further developed and produced at a new facility in Québec. The US Army also selected ADATS installed on the M2 Bradley chassis but by the time it was ready for service the ending of the Cold War led the US Army to cancel its orders, after Oerlikon invested over CHF 1 billion in the project.
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