In 1994, we developed the world’s largest train ferry, the 42,705 grt Skåne, for Sweferry. To improve capacity, we designed and engineered a 105m long double-tracked train-lift in the centre of the vessel. Such a long lift was considered by many in the industry to be unfeasible, but it has functioned flawlessly since her delivery in 1998.
Traditionally, container feeder vessels have the deckhouse aft, but recently we have proposed a new series of highly fuel-efficient vessels. These have the deckhouse positioned slightly forward of amidships which allows higher capacity and flexibility than similar vessels with the deckhouse aft. To enhance the propulsion efficiency these vessels have either counter rotating propellers or a single Kappel propeller driven by an ultra-long-stroke main engine.
The “Bangkok-Max” above and the 14 m longer “ECX-2300” below.
KNUD E. HANSEN A/S has been studying the potential for trimaran designs to offer superior capabilities compared to monohulls and catamarans, particularly when used for roll on / roll off passenger ferries. Studies have shown that trimarans offer less propulsion resistance and roll than slender monohulls, as well as providing much wider car decks. They also deliver superior ride comfort compared to catamarans.
(The grey area is constructed using high tensile steel. The remainder of the hull is aluminium or composite material.)