Close to a fifty by the presence of true linkage, with glass portholes for a better night visibility, Tourmaline is nevertheless a real sailboat sloop/cutter rigged with a 18,5m mast, and equipped with a profiled and deep drift. The daggerboard is equipped with an anti-turbulence system when the drift is in the down position. Two watertight bulkheads divide the hull in three compartments large enough to provide buoyancy in the event of flooding of one of the three compartments. The two rudders on the table allow perfect control of the boat. The very little partitioned interior was thought for offshore sailing of 4 people. A panoramic deck living-room and a smaller living-room below follow the wheelhouse. A large kitchen with an L return faces the living-room. There are two cabins at the front and back of the sailboat.