In late February, 2009, the RAstar 3200 Class tug Monterrey was delivered to the Owners Servicios Maritimes de Baja California, S. de R.L de C.V. of Mexico by the builders Union Naval Valencia (UNV) of Valencia, Spain.
‘ Servicios Maritimes de Baja California, S. de R.L de C.V. is a joint venture between Moran Towing of the USA and Grupo Boluda of Spain. This tug is the first of four expressly designed to work at the Costa Azul LNG terminal on the north-west coast of Mexico, at a terminal exposed to fully developed Pacific swells. The basic requirements for the tug design stipulated that the tug and its winch must be able to sustain a line pull of 75 tonnes throughout the entire terminal approach in a +2 metre significant swell. The resulting winch, described in detail later, is massive and extremely powerful; accordingly it dominated every aspect of the vessel design. In addition, the Owner’s required that the entire design be less than 500 GRT which certainly put a cramp on the intended vessel configuration.