Second Wave Class.(AO). Built 2002. 18200dwt.

RFA Wave Knight(2) A389. RFA Wave Ruler(2) A390.
Length overall: 196.5m. Beam: 28.25m. Draught: 9.97m
Machinery: diesel-electric - 4 x 12-cylinder Wartsila Vasa V32 diesels, 2 x GEC Alstom motors, total 27,200bhp, single shaft, bow thruster, stern thruster. Speed: 18 knots
Range: 10,000nm /15 knots, 8OOOnm /18 knots (probably not allowing bunkering from cargo?)
Armament: 2 x 30mm cannon; 4 x 7.62mm GPMG; fitted for but not with two Vulcan Phalanx. (Now fitted). Aircraft: 1 x Merlin helicopter
Complement: 72 RFA, 26 RN for helicopter operations and weapons.