[1] In January 2012 Belgian Minister of Defence Pieter De Crem presented plans for the future of the navy.

Damen proposed a variant of their Stan Patrol vessel which was already in use by a number of navies.

However, in December 2012, an order for two ships was placed with Socarenam for a far lower price (€26.6 million ) than the initial budget.

[3] In March 2023 it was revealed that the Belgian Navy is looking into acquiring a third patrol vessel which could be a third Castor-class ship.

[4][5] In November 2024, NAVELNEWS reported that the Belgian Ministry of Defense had completed negotiations with the shipyard in France Socarenam for the construction of a third ship.