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Topic: Spearfish torpedoes

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	Spearfish torpedo at AllExperts
		The Spearfish torpedo (formally Naval Staff Target 7525) is the heavy acoustic homing torpedo used by the submarines of the Royal Navy.
		The significantly higher speed of the Spearfish was intended to catch high-speed, deep-diving Soviet threats such as the Alfa class submarine.
		The torpedo's warhead is equipped with a shaped charge with directed energy and was designed to penetrate the double-hull construction of the Soviet submarines.A special device aboard the weapon is a microprocessor with provides the ability to make autonomous tactical decisions during the attack heading.
	en.allexperts.com /e/s/sp/spearfish_torpedo.htm (322 words)

	Spearfish
		Spearfish (SS-190) was laid down on 9 September 1937 by the Electric Boat Co., Groton, Conn.; launched on 29 October 1938; sponsored by Mrs.
		Spearfish returned to Pearl Harbor on 26 May and began her seventh war patrol from there on 5 June.
		Spearfish sailed from Pearl Harbor on 31 March for the East China Sea and the area north of Nansei Shoto.
	www.history.navy.mil /danfs/s16/spearfish.htm (1031 words)

	[No title]
		The torpedo struck at the #7 tank on the starboard side and caused a tremendous explosion and fire.
		At 0550, two torpedoes were fired and after 1 minute 58 seconds and 2 minutes 11 seconds hits on two ships were heard.
		The torpedo was spotted by the coxswain when it was 40 yards from the ship, but it struck on the starboard side between the #2 and #3 holds before evasive maneuvers were taken.
	www.seawaves.com /newsletters/TDIH/april/11Apr.txt (2484 words)

	In 1976 the Royal Navy began to seek a successor to the Mark 24 Tigerfish Heavyweight Torpedo (Site not responding. Last check: 2007-11-01)
		Spearfish is a submarine-launched wire guided heavyweight torpedo that can also operate autonomously from all Royal Navy submarines and interfacing, with a minimum of modification, to all weapon handling and fire-control systems.
		The wire is dispensed from two reels, one in the torpedo and one in the submarine launch tube, through a new design of dispenser which allows discharge at high submarine speeds as well as complete freedom of manoeuvre for the submarine after launch.
		Spearfish contains a number of homing and tactics computers to control the weapon, enabling it autonomously to select search, detection and attack modes, to classify signal returns, to decide on appropriate tactics including re-attacks on the target if necessary, and to classify, track and overcome countermeasures and decoys.
	myweb.tiscali.co.uk /rnsubmarines/other/spearfish.htm (1017 words)

	Information on British Torpedoes
		British Torpedoes of the World War I and World War II period were designated by their diameter in inches together with a "Mark" followed by a simple Roman Numeral.
		Britain held a technological lead in torpedo development for much of the period between the World Wars, but they were overtaken by the Japanese with their use of pure oxygen.
		Oxyen-enrichment was employed for the large 24.5" (62.2 cm) Mark I torpedoes used on the Nelson class battleships and for the 21" (53.3 cm) Mark VII torpedoes used on cruisers, but they were not well regarded as the oxygen enrichment process was cumbersome and difficult to use.
	www.navweaps.com /Weapons/WTBR_Notes.htm (775 words)

	Spearfish torpedo: Definition and Links by Encyclopedian.com
		...Spearfish torpedo Spearfish torpedo The Spearfish torpedo is the heavy torpedo...
		...four torpedo tubes capable of firing Spearfish torpedoes Sensors: sonar (bow, flank, active intercept, and towed...
		The Spearfish torpedo is the heavy torpedo used by the submarines of the Royal Navy.
	www.encyclopedian.com /sp/Spearfish-torpedo.html (147 words)

	BHARAT RAKSHAK MONITOR: Volume 3(4) (Site not responding. Last check: 2007-11-01)
		The Torpedo is one of the oldest weapons in the Naval Inventory,Having been invented over 130 years ago, But at the same time it remains one of the deadliest anti-ship and anti-submarine weapon,It is far more lethal to submarines and surface ship than any other conventional weapon.
		Torpedoes fall in two main categories: Heavy Weights that are mainly confined to submarines (with a few notable exception) and Light Weights that are used both as offensive weapons in anti-submarine warfare or as defensive anti-submarine weapons by surface warship.
		The Spearfish like the Adacp is required to have an under-ice capability,but ironically the first torpedo in NATO with such capability was the Spearfish’s elderly predecessor, the Tigerfish Mk 24 Mod 2.
	www.bharat-rakshak.com /MONITOR/ISSUE3-4/joseph.html (4278 words)

	British Torpedoes after World War II
		This torpedo was still in use as late as 1982 when three of them were used during the Falklands War to sink the Argentine cruiser Belgrano.
		This torpedo depends heavily on data provided by the firing submarine, but the torpedo tended to dip and break the guidance wires during launch.
		Torpedoes built to the new standards were designated as Mod 2, and all 600 existing Mark 24 torpedoes were modified to this standard by 1987.
	www.navweaps.com /Weapons/WTBR_PostWWII.htm (1419 words)

	Claverham:Spearfish
		Spearfish is a hydraulic pump with a return oil system.
		In electrohydraulic systems a pump, usually near the torpedo motor and remote from the ring main, is connected via hoses and quick-disconnect couplings.
		On torpedo release an electrical signal actuates a frangible valve in a sealed gas bottle.
	www.scml.com /spearfish.htm (458 words)

	Nuclear cocktail Kursk
		The official inquiry into the sinking of the USS Scorpion said that the detonation of one torpedo in the torpedo compartment would be likely to lead to the detonation of one or more other torpedoes.
		Initial reports indicated that: one torpedo hatch on the starboard side is open, one missile hatch on the starboard side below the coning tower is missing, there is damage to the bow and there is also debris on the seabed at the port side near the bow.
		The Spearfish torpedoes carried on British submarines today are a particular problem because of the large explosive power in the warheads and the toxic and explosive hazards of the Otto fuel which propels them.
	dspace.dial.pipex.com /prod/dialspace/town/pipexdsl/d/adhb32/news/000817a.html (1564 words)

	Russia's blue water blues \| thebulletin.org
		Russia's navy also uses several torpedo types fueled by kerosene and either liquid oxygen or peroxide, both of which are unstable and require careful handling.
		The navy's electric torpedoes are less prone to fire or explosion, but they have hazards of their own.
		Finally, the latest Russian torpedoes, such as the UGST, use a new type of liquid monopropellant containing its own oxidizer, similar to the Otto fuel used by U.S. Mk 48 and British Spearfish torpedoes.
	www.thebulletin.org /article.php?art_ofn=jf01chuen (2988 words)

	USS Spearfish (SS-190) - Wikipedia, the free encyclopedia
		USS Spearfish (SS-190), a Sargo-class submarine, was the only ship of the United States Navy to be named for the spearfish, any of several large, powerful, pelagic fishes of the genus Tetrapturus allied to the marlins and sailfishes.
		Spearfish conducted sea trials off New London, Connecticut, and then held her shakedown cruise in the Guantanamo Bay area from 21 August to 3 October.
		On the night of 10 September and 11 September, she made a submerged torpedo attack on a convoy of seven freighters escorted by one destroyer and two torpedo boats.
	en.wikipedia.org /wiki/USS_Spearfish_(SS-190) (1132 words)

	[No title]
		SPEARFISH Spearfish: Any of several large, powerful, pelagic fishes of the genus Tetrapturus allied to the marlins and sailfishes.
		Complement: 78 Armament: 1 4”; 2.50 cal. MG; 8 21” torpedo tubes Class: SARGO SPEARFISH (SS-190) was laid down on 9 September 1937 by the Electric Boat Co., Groton, Conn.; launched on 29 October 1938; sponsored by Mrs.
		From Oahu, she was directed to Mare Island for a major overhaul which lasted from 3 February to 19 May. SPEARFISH returned to Pearl Harbor on 26 May and began her seventh war patrol from there on 5 June.
	www.hazegray.org /danfs/submar/ss190.txt (1041 words)

	Defence Internet \| Fact Sheets \| Spearfish Heavyweight Torpedo (Site not responding. Last check: 2007-11-01)
		Spearfish is the current heavyweight torpedo (HWT) weapon system in all classes of Royal Navy submarines.
		Spearfish is powered by an open-cycle bi-propellant gas turbine engine, which provides the weapon with a high sprint speed, a deep-diving capability and high endurance.
		Torpedoes IPT, BAE SYSTEMS and DSDA are co-operating on the transformation of In-Service Support for the New Era post-April 2008.
	www.mod.uk /DefenceInternet/FactSheets/SpearfishHeavyweightTorpedo.htm (597 words)

	The Five Nuclear Navies.
		Armed with five 21-inch torpedo tubes, the Trafalgar carries Spearfish torpedoes, along with the Harpoon and Tomahawk missiles.
		With eight torpedo tubes (four 650-millimeter and four 533-millimeter), it carries a variety of torpedoes.
		However, the Type 65 torpedo has a range comparable to the Exocet (50 kilometers at 90 kilometers an hour/100 kilometers at 54 kilometers an hour), and is a wake-homing torpedo.
	nuclearno.com /textml.asp?8711 (815 words)

	Indymedia Scotland: Elf's at Defence Munitions Beith (Site not responding. Last check: 2007-11-01)
		The missile is launched underwater from a torpedo tube, allowing the submarine to remain undetected.
		Spearfish torpedoes are a particular problem on British submarines because of the large explosive power in the warheads and the toxic and explosive hazards of the Otto fuel that propels them.
		The torpedoes are carried by both the Trident and the hunter-killer submarines based at Faslane[74] and there is considerable road transport between Faslane[74] and Beith.
	scotland.indymedia.org /newswire/display/2735/index.php (1347 words)

	[No title]
		At 2059, U-37 fired one torpedo at a steamer, which was struck in the aft part and broke in two.
		The lookout in Louisburg sees the torpedo whiz past her port side, missing by a few feet, while the ASDIC operator locates a contact.
		When the torpedo that missed Louisburg struck Heina, a second torpedo hit Spikenard between the bridge and forecastle, blowing open her side and top deck.
	www.seawaves.com /newsletters/TDIH/february/10Feb.txt (2922 words)

	(1993- ) Vanguard (Trident)
		Vanguard is fitted with four 533 mm torpedo tubes and carries the Tigerfish and Spearfish torpedoes supplied by BAE Systems.
		Tigerfish Mark 24 Mod 2 torpedo is a wire-guided torpedo with a 134 kg warhead and active and passive homing.
		Spearfish is a wire guided torpedo with both active and passive homing to a range of 65 km.
	www.submariners.co.uk /Boats/Barrowbuilt/Vanguard (689 words)

	Trident submarine
		The high explosives in the torpedoes may be heat sensitive, one type of explosive used in torpedoes, PETN has a melting point of 140o C. Trident submarines will carry Spearfish torpedoes.
		Although the torpedoes which are fired have dummy warheads there is the danger of a handling accident resulting in an explosion of the Otto fuel.
		The rogue torpedo then turned and homed in on the USS Scorpion and sunk the submarine with the loss of all her crew.
	dspace.dial.pipex.com /town/pipexdsl/d/adhb32/trisaf/ch3.htm (6823 words)

	Royal Navy (Site not responding. Last check: 2007-11-01)
		The missile is ejected from the submarine by high-pressure gas and only when it reaches the surface does the rocket system actually fire.
		Weighing in around two tonnes, this is one of the world’s most advanced homing torpedoes, effective against surface and underwater targets.
		Spearfish has an impressive accelerating attack speed combined with considerable operational range and is the mainstay of Vanguard’s conventional arsenal.
	www.royal-marines.mod.uk /rn/print.php?page=177 (736 words)

	Torpedo programme, Ministry of Defence: twenty-eighth report from the Committee of Public Accounts
		The Torpedo Programme comprises the Heavyweight Torpedo (HWT), which is the major armament of the United Kingdom's submarine forces and the Lightweight Torpedo, which is the principal anti-submarine weapon of ships, aircraft and helicopters.
		The total estimated costs up to the mid 1990s of the three current major projects, the Mark 24 Tigerfish, Sting Ray and Spearfish torpedoes is more than £5,000 million at constant 1984 prices.
		In terms of physical progress, the Committee is pleased with the development of Sting Ray and Spearfish, and expects Tigerfish to become a usable weapon.
	www.bopcris.ac.uk /bopall/ref20144.html (203 words)

	Scottish Campaign for Nuclear Disarmament
		Spearfish torpedoes are a heavyweight torpedo fired from submarines against surface vessels and other submarines.
		The torpedoes are tested at BUTEC ranges based at the Kyle of Lochalsh[24] and at the AUTEC ranges (the US Navy's Atlantic Undersea Test and Evaluation Center) in the Bahamas and teams from Beith assist in the test firings.
		Spearfish torpedoes are a particular problem on British submarines because of the large explosive power in the warheads and the toxic and explosive hazards of the Otto fuel that propels them.
	www.banthebomb.org /militaryscotland/59.html (1237 words)

	Four arrested at torpedoes' storage site - Evening Times (Site not responding. Last check: 2007-11-01)
		It is understood they climbed on to the roof of a building, which houses the latest Spearfish torpedoes.
		The highly-classified 23ft torpedoes, which weigh almost two tons, are the latest version of the heavyweight torpedo used by the Royal Navy.
		The woman was said to be a resident of an anti-nuclear peace camp outside Helensburgh, near the Clyde's naval base at Faslane.
	www.eveningtimes.co.uk /print/news/5050938.shtml (172 words)

	Astute Class
		Astute will have six 533 mm torpedo tubes, and will be equipped with Spearfish torpedoes and mines.
		The Spearfish torpedo from BAE Systems is wire-guided with an active/passive homing head.
		Spearfish is fitted with a directed energy warhead.
	www.submariners.co.uk /Boats/Barrowbuilt/Astute/index.htm (885 words)

	Navy News - News Desk - News - National award for Spearfish manager (Site not responding. Last check: 2007-11-01)
		Spearfish is a high speed, anti-shipping and anti-submarine acoustic homing torpedo and the primary defensive weapon for Royal Navy submarines.
		Powered by gas turbine, Spearfish holds the world underwater speed record to deliver its knockout performance, with each weapon costing more than £1 million.
		The project involved building all the Spearfish torpedoes in the first batch to a state suitable for testing then demonstrating underwater performance before re-configuring the torpedoes to the fully-warheaded specification for delivery to the Royal Navy.
	www.navynews.co.uk /articles/2000/0007/0000072511.asp (183 words)

	Ballistic Submarines (SSBN) : Submarine Service : Operations and Support : Royal Navy (Site not responding. Last check: 2007-11-01)
		The missile is ejected from the submarine by high-pressure gas and only when it reaches the surface does the rocket system actually fire.
		Weighing in around two tonnes, this is one of the world's most advanced homing torpedoes, effective against surface and underwater targets.
		Spearfish has an impressive accelerating attack speed combined with considerable operational range and is the mainstay of Vanguard's conventional arsenal.
	www.royal-navy.mod.uk /server/show/nav.2420 (788 words)

	MoD awards £24M torpedo testing contract to BAE Systems (Site not responding. Last check: 2007-11-01)
		The Ministry of Defence has placed a contract with BAE Systems to provide the testing equipment that will ensure the Spearfish torpedoes that equip Britain’s submarines, remain in prime condition.
		Spearfish is a heavyweight torpedo used by all classes of Royal Navy submarines.
		Under the new contract BAE SYSTEMS, Underwater Systems Division, will design, develop and manufacture of the Spearfish Replacement Automatic Test Equipment that will safeguard the processing requirements of the Spearfish torpedo for the remainder of its in-service life.
	192.5.30.131 /dpa/news/pn2003/nov03/spearfish.htm (403 words)

	Navy Matters \| Astute Class
		Spearfish is powered by a Sundstrand 21TP01 gas turbine (using HAP-Otto fuel) driving a shrouded pumpjet propulsor.
		The Spearfish torpedo is an advanced wire-guided with an active/passive homing head and a directed energy warhead.
		Spearfish packs a major punch in the ASuW role, but it is optimised against large targets and is an expensive weapon to expend against the small surface threats likely to be encountered in the littoral.
	frn.beedall.com /astute.htm (7357 words)

	Torpedoes: 4 Dec 2001: Written answers (TheyWorkForYou.com) (Site not responding. Last check: 2007-11-01)
		There are currently three torpedoes in service with Her Majesty's Armed Forces—Sting Ray, Spearfish and Tigerfish.
		Spearfish is replacing Tigerfish as the Royal Navy's heavy weight torpedo, and significantly enhances its anti-submarine and anti-ship torpedo capability.
		Sting Ray is the Forces' light weight torpedo and is the main anti-submarine weapon for surface ships, helicopters and the Nimrod Maritime Patrol Aircraft.
	www.theyworkforyou.com /wrans/?id=2001-12-04.18756.h (179 words)

	Subsim Radio Room Forums - View Topic
		It fired a couple Harpoons, then dove down and fired Spearfish and Tigerfish torpedoes at a small surface vessel, in two salvos.
		But I swear to you, one torpedo immediately turned away as the small vessel was sunk while the other one stayed on course, was about 5 nm out of the target, now what was it, think the Bosisio or what.
		The Spearfish is highly advanced, and it speed is supposed to be 70kts.
	www.subsim.com /phpBB_2002/viewtopic.php?topic=2418&forum=2&13 (1241 words)

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