Daniel Wasserbly and Alex Pape Mexican Navy Orders Three More Damen 4207 Patrol Vessels Thursday, January 7, 2016 - 07:53 The Secretariat of the Mexican Navy (SEMAR) has signed a contract with Damen Shipyards for three Ténochtitlan-class 42 m patrol vessels that are based on the Damen Stan Patrol 4207 design.