Heesen Yachts has unveiled YN 17850 – Project Nova, its new 50m Fast Displacement, full-aluminium motoryacht, considered by the yard to be a ‘new breed’ of Heesen.

Project Nova follows the success of 65m Galactica Star, the world’s first yacht with a Fast Displacement Hull Form (FDHF) and offers a similar performance in a smaller design package of under 500gt. But with this yacht the emphasis is less on speed and more on fuel efficiency.

With a light aluminium hull and relatively small engines (2MTU x 600kW), Heesen’s stringent attitude to weight control means the vessel is not only less thirsty, with a remarkable transatlantic range of 3,750 nautical miles a cruising speed of 12 knots with only 45m3 of fuel, but is also more spacious.

Heesen’s in-house naval architects and the experts from van Oossanen, who devised the FDHF, thoroughly tested her newly designed hull at the Wolfson Unit Southampton tank test facility in July 2014. Impressive results have revealed a fuel consumption at cruising speed of 125 litres per hour and at 10 knots a staggering 85 litres per hour, making Project Nova the most efficient vessel in her class.

Exterior lines are by long-term Heesen collaborator Frank Laupman at Omega Architects and interior styling is by Sinot Yacht Design. Her exterior lines break with Heesen yachts of the past but still retain a sense of seaworthiness. The vertical bow, for example, serves to reduce the vertical acceleration that causes discomfort for guests on board.

Project Nova’s keel was laid in the presence of the ABS surveyor last February at the Heesen facility in Oss and her construction is scheduled to be completed by spring 2017.