Naval Decoy IDS300 (Inflatable Decoy System) is a passive, off-board, octahedral, corner reflector decoy of the Royal Navy's Type 45 destroyer and the US Navy's Arleigh Burke-class destroyer, forming part of a layered defence to counter anti-ship missiles.[1] Unlike chaff, the decoy is persistent and will float for up to three hours in sea state 4.[2]
Jane's was first to report the United Kingdom was looking for a new floating decoy as part of a program known as the Naval Passive Off-Board Decoy (N-POD), on March 3, 2019.[3] In US Navy service, it is designated as the Mk 59 decoy launching system.[4] The system is made by Irvin Aerospace Ltd, Hertfordshire in the United Kingdom.[5]