The Seagnat Control System (sometimes spelled SeaGnat or Sea Gnat) is a British decoy system produced by System Engineering & Assessment (SEA) Ltd firing rounds produced by Chemring Countermeasures Ltd used on many

NATO The North Atlantic Treaty Organization (NATO, ; french: Organisation du traité de l'Atlantique nord, ), also called the North Atlantic Alliance, is an intergovernmental military alliance between 30 member states – 28 European and two No ...

warships to safeguard against incoming

missile In military terminology, a missile is a guided airborne ranged weapon capable of self-propelled flight usually by a jet engine or rocket motor. Missiles are thus also called guided missiles or guided rockets (when a previously unguided rocket i ...

Each unit consists of six launchers that can be loaded with different rounds, depending on the threat: *Mk214 Seduction

Chaff Chaff (; ) is the dry, scaly protective casing of the seeds of cereal grains or similar fine, dry, scaly plant material (such as scaly parts of flowers or finely chopped straw). Chaff is indigestible by humans, but livestock can eat it. In agri ...

*Mk216 Distraction Chaff *Mk245 "GIANT" IR Round *Mk251 "siren" Active Decoy Round (only on later "DLH" versions) The rounds are launched as decoys to trick incoming missiles into missing the ship or to prematurely detonating. Rounds are launched from NATO standard 130mm

Mark 36 SRBOC The BAE Systems Mark 36 Super Rapid Bloom Offboard Countermeasures Chaff and Decoy Launching System (abbreviated as SRBOC or "Super-arboc") is an American short-range decoy launching system (DLS) that launches radar or infrared decoys from naval ve ...

launchers, either fixed or trainable, and typically mounted in groups of around six barrels. The Active Decoy Round has three phases: a low g rocket motor to project it away from the ship, a drogue to slow the round, and a

parasail Parasailing, also known as parascending, paraskiing or parakiting, is a recreational kiting activity where a person is towed behind a vehicle while attached to a specially designed canopy wing that resembles a parachute, known as a parasail w ...

wing that allows the decoy to slowly maneuver as it descends to the water. The device is diameter by long. It is powered by a

thermal battery A thermal energy battery is a physical structure used for the purpose of storing and releasing thermal energy—see also thermal energy storage. Such a thermal battery (a.k.a. TBat) allows energy available at one time to be temporarily stored an ...

and its on-board computer allows the transmitters to radiate in either deception mode or noise (smart or barrage). Range is up to from the ship.

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External links

{{Commonscat-inline, Seagnat (decoy system) Missile countermeasures Missile defense