OVERVIEW: The Mk 214 Sea Gnat is a 112 mm radar seduction chaff round used by NATO and U.S. naval forces. It is designed to divert radar-guided missiles by creating a dense radar-reflective cloud close to the launching vessel.

DETAILS: The Mk 214 is part of the Sea Gnat family of NATO-standard passive decoys compatible with 112 mm SRBOC launchers, including the U.S. Navy’s Mk 36 and the Royal Navy’s Outfit DLH. Developed to provide a radar seduction capability, it deploys aluminum-coated fiberglass dipoles that reflect enemy radar emissions. The round uses a reduced launch charge to enable use on smaller vessels while maintaining effective chaff dispersal patterns. It entered service in 1987 and was fielded as a complement to distraction and infrared countermeasure rounds within naval decoy suites.

FONCTION:
Launched from 112 mm SRBOC systems on naval platforms.
Dispenses radar-reflective chaff material in a localized area.
Creates a radar decoy signature to seduce incoming missiles.

SOURCE:
Wikipedia (https://en.wikipedia.org/wiki/Sea_Gnat) ; U.S. Navy Passive Decoy Flipbook (Indiana University) ; Free Library – “Advances in Passive Expendable Countermeasures” ; Navy Lookout – “Royal Navy Upgrades Its Passive Decoy Launchers”