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Proven success for Hull Vane application on superyacht Alive

Business

Created by the Dutch company Van Oossanen Naval Architects, the third full-scale application of the fuel saving device Hull Vane has been successfully completed. The 42 metre Heesen built superyacht Alive is the very first luxury yacht equipped with a Hull Vane, following a 30 metre passenger catamaran in addition to a 55 metre offshore supply vessel. Hull Vane reports that full scale test results have proven fuel savings averaging 20% in the yacht’s useful speed range of 12 to 16 knots.

The Hull Vane was incorporated into the design of Alive from the beginning, apparently saving money and space throughout the construction as smaller main engines and fuel tanks could be installed to achieve the same transatlantic range. On board new builds, the Hull Vane is a particularly attractive option for new owner’s, as the cost of savings on the main engines often outweigh the cost of the Hull Vane.

The main working principle of the Hull Vane is forward thrust: the hydrofoil generates a lift force in the upward flow under the aft ship. As this lift force is angled forward, a net forward thrust force is developed. The Hull Vane sometimes has been called “the bulbous bow of the stern” as it also reduces the stern wave created by the vessel and therefore the energy put into the wave system. Due to the vertical lift, the running trim is also influenced beneficially. As the Hull Vane dampens the pitching, rolling and yawing movements, the savings percentage is higher when sailing in waves as the added resistance from ship motions is reduced.

The patented Hull Vane is sold exclusively by Hull Vane BV and its appointed sales agents, and is not exclusive to any design office of shipyard. Besides superyachts, suitable ship types are ferries, naval and coastguard ships, offshore supply vessels, midsize container vessels and small cruise ships.

By Gemma Fottles

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