Although referred to as W-class, Voyager, of the Royal Australian Navy, completed in 1918 was a "W". Other ships completed to this design with triple torpedo tubes were: Wakeful, Watchman, Walker, Westcott, Walpole, Whitley, Walrus, Wolfhound, Warwick, Wessex, Waterhen (RAN), Wryneck, Westminster, Windsor, Whirlwind, Wrestler, Winchelsea & Winchester.