Marconi Avionics developed the Attitude/Heading Reference System for both the UK Sting Ray and Spearfish heavyweight Torpedoes. The Sting Ray torpedo is an acoustic homing light-weight torpedo (LWT) manufactured by BAE Systems (the prime contractor was then Marconi Underwater Systems Ltd). The original in-service version was designed in the late 1960s and entered service in 1983. The weapon is provided with target and environmental information by the launching platform. Once launched it operates autonomously, with tactical software searching for the target using active sonar and then homing in without any further assistance. The software is designed to deal with the employment of countermeasures by the target.
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Years Manufactured: 1983 - 2012
Platform Type: Missile/Torpedo
Initial Maker: Marconi Underwater Systems
Final Maker: BAE Systems