The Spearfish Torpedo

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  • Topic: BGM-109 Tomahawk, Submarine, Cruise missile
  • Pages : 3 (734 words )
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  • Published : March 25, 2012
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The Spearfish torpedo (formally Naval Staff Target 7525) is the heavy acoustic homing torpedo used by the submarines of the Royal Navy. It is a dual-purpose wire-guided weapon and provides both anti-submarine warfare (ASW) and anti-surface ship warfare (ASuW) capability, replacing the Tigerfish torpedo which was withdrawn in 2004.The significantly higher speed of the Spearfish was intended to catch high-speed, deep-diving Soviet threats such as the Alfa class submarine. The weapon is driven by a pump-jet coupled to a Hamilton Sundstrand 21TP04 gas turbine engine using Otto fuel II and hydroxyl ammonium perchlorate as oxidiser.A microprocessor aboard the weapon provides the ability to make autonomous tactical decisions during the attack. The torpedo has a powerful blast warhead, triggered by either contact detonation (against a submarine hull) or an acoustic proximity fuze (for under-keel detonation against ships).The production contract for the Spearfish Torpedo was placed with Marconi Underwater Systems Ltd (now BAE Systems) in 1983, following a development programme lasting for several years. Spearfish entered full production in 1988, with deliveries completed in 2003. The exact number of units ordered has not been revealed. Spearfish torpedoes are stored and serviced at Beith Ordnance Storage facility in North Ayrshire. TOMAHAWK CRUISE MISSILE|

The Tomahawk® Land Attack Missile (TLAM) is an all-weather, long range, subsonic cruise missile used for land attack warfare, launched from U. S. Navy surface ships and U.S. Navy and Royal Navy submarines.|  |

Tomahawk carries a nuclear or conventional payload. The conventional, land-attack, unitary variant carries a 1,000-pound-class warhead (TLAM-C) while the submunitions dispenser variant carries 166 combined-effects bomblets (TLAM-D). The Block III version incorporates engine improvements, an insensitive extended range warhead, time-of-arrival control and navigation...
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