The contract for the design of the new Naval large tugs project was issued by Ocean Industries. Robert Allen Ltd. of Vancouver will be providing a variation of their Ramparts 2400 design. The design is commercially proven, with 48 having been built internationally.  The Tug is not currently in use in Canada.

Ocean will be building 4 tugs, 2 for each coast. the New large tugs will replace the existing Glen Class.