Heesen’s 42.4m (139ft) motoryacht Alive (YN 17042) has now completed her sea trials shedding new light on the performance of the shipyard’s new Hull Vane technology.

The yard has announced that the sea trials of YN 17042 were were successfully completed in open waters in a slight sea state (0.7m waves) with 3-4 knot south westerly winds. Alive reached a maximum speed of 16.4 knots, exceeding the contractual speed by 0.5 knots.

The contractual fuel consumption prediction proved to be correct: 4000nm at 12 knots. Over 750 miles come free of charge thanks to her remarkably frugal fuel consumption, that is 30% less than on a conventional displacement yacht.

The Hull Vane is an under water foil that harnesses waves to produce power; this in combination with the Fast Displacement Hull Form and conventional diesel engines. Proven during independent research conducted by Van Oossanen Naval Architects at two of the world’s most respected hydrodynamic laboratories, the Wolfson Unit and Marin, its success has now been proved at sea.

Alive was delivered to her owners on November 4, 2014.