The Cape class is a ship class of 20 large patrol boats operated by the Marine Unit of the Australian Border Force, the Royal Australian Navy (RAN) and the Trinidad and Tobago Coast Guard. Ordered in 2011, the vessels were built by Austal to replace Customs' Bay-class patrol boats, and entered service from 2013 onwards. Following availability issues with the Armidale class, two vessels were chartered by the RAN from mid-2015 to late 2016. A further two vessels were ordered at the end of 2015 by the National Australia Bank, who will charter the patrol boats to the Department of Defence from completion in 2017. 2 vessels were ordered by Trinidad and Tobago for their coast guard in 2018 with the vessels delivered in 2021. The RAN placed an order for six 'Evolved' Cape-class vessels in 2020 a