After the Cape class began entering service, four of the Bays were offered to other forces; two each to the Sri Lankan Navy and the Malaysian Maritime Enforcement Agency.

[2] The propulsion system consists of two MTU 16V 2000 M70 diesel engines, supplemented by a VosperThornycroft bow thruster.

[1][2] The sensor suite consists of a Racal Decca surface search radar operating in the E/F and I bands, and a Wesmar SS 390E dipping sonar.

[7] The age of the vessels and resulting maintenance needs has seen a drop in the amount of time spent at sea, with other ships of the Customs Marine Unit forced to take up the slack.

[16] The Bay class were due to be replaced in 2010, but it was not until June of that year that a request for tender was issued for eight new, larger patrol boats.

[18] Construction of the vessels, designated the Cape class, started in 2012 with the keel of the first boat being laid in June 2012,[19] and launched in January 2013.