The Honeywell ASROC (US Navy designation RUR-5A) is an American rocket-assisted anti-submarine ballistic weapon originally developed in 1956, production starting in 1959, with ASRCO becoming operational on four American destroyers in 1961 following successful evaluation trials on the destroyer USS Norfolk in 1960. ASROC consists of a General Electr... Found on http://www.probertencyclopaedia.com/browse/RAA.HTM