DM2A4 is a new heavyweight torpedo developed by STN Atlas Elektronik, as a further update of DM2 (Deutsches Modell 2) torpedo which was released in 1976. Being the successor of DM2A3, it will feature an electrical propulsion system and a fiber optic cable for torpedo guidance. This is the first torpedo ever, to be guided by a fiber optic wire^{[citation needed]}. The torpedo, historically called a locomotive torpedo, is a self-propelled explosive projectile weapon, launched above or below the water surface, propelled underwater toward a target, and designed to detonate on contact or in proximity to a target. ... Atlas Elektronik GmbH is a subsidary of BAE Systems based in Bremen, Germany. ... Fiber Optic strands An optical fiber in American English or fibre in British English is a transparent thin fiber for transmitting light. ...

The weapon will have four batteries to achieve its maximum range of more than 27 nm (50 km) and a speed of some 50 kt (90 km/h). Also the torpedo can be used as ROV for unmanned reconnaissance missions. A nautical mile or sea mile is a unit of length. ... km redirects here. ... A knot is a unit of speed abbreviated kt or kn. ... Remotely operated vehicles (ROV) are mobile tools used in environments too dangerous for humans. ...

The weapon retains the 250 kg hexogen/RDX/aluminium high-explosive warhead (equivalent to 460 kg of TNT) with magnetic influence and contact fuses, a wake sensor is also included.? The U.S. National Prototype Kilogram, which currently serves as the primary standard for measuring mass in the U.S. It was assigned to the United States in 1889 and is periodically recertified and traceable to the primary international standard, The Kilogram, held at the Bureau International des Poids et... R-phrases S-phrases Related Compounds Related compounds picric acid hexanitrobenzene Except where noted otherwise, data are given for materials in their standard state (at 25 Â°C, 100 kPa) Infobox disclaimer and references Trinitrotoluene (TNT) is a chemical compound with the formula C6H2(NO2)3CH3. ... A wake is the region of turbulence immediately to the rear of a solid body caused by the flow of air or water around the body. ...

The torpedo has been ordered by the German Navy for its Type 212 submarines. German frigate Karlsruhe rescuing shipwrecked people off the coast of Somalia while participating in the international anti-terror operation ENDURING FREEDOM, April 2005 The Laboe Naval Memorial for sailors who lost their lives at sea during the World Wars and while on duty at sea and U 995 Modern Air... The German Type 212 is an advanced design of non-nuclear U-Boat developed by Howaldtswerke-Deutsche Werft AG (HDW) for the German Navy. ...

The weapon has a length of 6.6 m, although other shorter variants exist.

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