Kortenaer
Authorised in the late 1960s, the 'Kortenaer' class was designed to replace 12 older ASW vessels of the Dutch navy. Propulsion and machinery were based on the larger 'Tromp' class, with gas turbines giving the kind of maneuverability and acceleration that are vital when hunting fast nuclear-powered submarines. The 'Kortenaer' design was used by the Germans as the basis for eight 'Bremen' or 'Type 122' class ASW frigates, and has been stretched and modified to produce the forthcoming 'Type 123' or 'Deutschland' class. Only seven 'Kortenaer' frigates remain in service.
