Hull Vane® retrofit on OPV Thémis
Shipyard Constructions Méchaniques de Normandy (CMN) of Cherbourg, France, recently conducted sea trials on the OPV Thémis from the French Coastguard (Affaires Maritimes). The 52 m patrol vessel received a hydrodynamic upgrade at the shipyard by retrofitting the patented Hull Vane®, an underwater wing which reduces the ship’s resistance. The result is a lower fuel consumption (10 to 20% depending of the speed) and emissions, a longer range and improved seakeeping. Thémis is the first Offshore Patrol Vessel (OPV) to be equipped with a Hull Vane®. The OPV is a ship type which Hull Vane BV expects to become one of their major markets. About a dozen studies and model tests have indicated similar savings on patrol vessels ranging from 25 metres to 108 metres. The Hull Vane® was built of steel in the Netherlands and was transported to Cherbourg by truck. CMN was in charge of the installation and the structural integration, including a lengthening of the divers’ platform. CMN is the first naval shipbuilder to propose Hull Vane® as a mid-life performance upgrade to their existing customers, which was highly appreciated by their client.
The retrofit is a concrete action of the Affaires Maritimes to reduce the CO2 emissions of their fleet. By choosing for Hull Vane®, they achieve this goal while reducing operating costs and improving working conditions onboard.