Protean

The Protean chaff grenade launcher is a ship-based countermeasure against radar homing anti-ship missiles. Firing can be manually controlled or initiated automatically from a threat warning received from the radar or associated radar intercept system.

The launchers are fitted on the deck, two forward (starboard and aft) or two forward and two aft; the launchers are fixed in azimuth and elevation. Each launcher has four reloadable magazines, each containing 36 grenade barrels. ...