DEFE 671951-1990Ministry of Defence (Navy): Operational Evaluation Group and Submarine Tactics and Weapons Group, and Joint Anti-Submarine School (JASS): Reports and Notes
Reports and notes from the Royal Navy Operational Evaluation Group (initially an anti-submarine warfare unit but later involved in Fleet-wide tactical development and weapons evaluation), from the Joint Anti-Submarine School (JASS) which administered it, and from the Submarine Tactics and Weapons Group (STWG) which was formed to take over submarine tactical development and in-service tactical weapon firing evaluations.
Some of the acronyms used within this series are: ASW (anti-submarine warfare); AUTEC (Atlantic Undersea Test and Evaluation Center); ECM (electronic countermeasures); MATCH (Medium-range Anti-submarine Torpedo Carrying Helicopter); PASSEX (Passing Exercise); SSK (conventional submarine); SSN (nuclear submarine); VECTAC (vectored attack).
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