 Until 2005, the four "Examples" were still painted with a black hull.In 1998 two additional vessels ( and ) of this design were commissioned into the Royal Navy from Ailsa Shipbuilding Company, to replace and as URNU training vessels for the two newest URNUs, serving Cambridge and Oxford Universities respectively ("Raider" was later transferred to Bristol URNU whilst became the ship of Cambridge URNU).This brought the total of "Archer" class vessels in the Royal Navy to sixteen, of which fourteen form the 1st Patrol Boat Squadron (formerly the Inshore Training Squadron), each one attached to an URNU (one per unit) under the command of a Lieutenant.