At her recent dry-dock at Remontowa, Gdańsk, the hull of Brittany Ferries’ PONT-AVEN was lengthened by three metres at the stern waterline. This is often referred to as a duck-tail. The purpose of the modification is to improve the hydrodynamic performance of the vessel. This will reduce the drag...
https://ferryshippingnews.com/brittany-ferries-improves-fuel-efficiency-of-flagship/