Heesen Yachts held a press conference at the Monaco yacht to unveil Project Nova. The new hybrid 50m motoryacht carries the latest propulsion technology and silent cruising developed by the Dutch yard.
This yacht is a Fast Displacement Hull, a concept Heesen was the first to develop with the launch of Galactica Star in 2013.
Speaking to the press, Mark Cavendish, Heesen sales and marketing director, explain Project Nova unlike Galactica Star is not designed for exceptional high speeds but instead uses the ultra efficient and easily driven hull form at the lower speeds typically associated with traditional displacement hulls but, with vastly lower fuel consumption.
“Nova at 12 knots has a fuel consumption of 98 litres per hour (excluding generators) and at 10 knots this reduces to a staggering 57.5 litres per hour – this for a yacht 50m long, displacing 315 tons and with a Gross Tonnage of 499. Coupled with this is a maximum speed of 16.3 knots, which is no slouch for a displacement yacht and demonstrates that we haven’t achieved this performance by installing a pair of outrageously small engines!,” he said.
The above performance is achieved with a pair of MTU 12V 2000 M61 engines, 600 kW each. “I agree are smaller than typically fitted on a yacht of this size but this just illustrates the remarkable efficiency of the Fast Displacement Hull form,” Cavendish added.
Another outstanding feature of Project Nova is her hybrid propulsion system. By adding two water cooled DC electric shaft motors of 127 kW each Heesen claims Nova can cruise at speeds up to 9 knots using the generators alone. The main engines can be switched off and do not need to be used. At this speed the consumption is predicted to be a staggering 45 litres per hour.
Cavendish also claimed that the Hybrid propulsion system onboard Project Nova has been designed to put noise levels down. “In the owner’s stateroom the decibel level whilst underway with the main engines, in other words ‘normal cruising’ is predicted to be 50 dB(A) whereas at 9 knots with the hybrid propulsion system this will drop to 46 dB(A). In the Main Salon this will drop from 62 dB(A) to 50 dB(A), In the dining area from 60 to 48, in the upper saloon from 58 to 46 and in the guest cabins also from 58 to 46,” Cavendish explained.
Drawn by Frank Laupman at Omega Architects, Project Nova’s aesthetic features include her plumb bow and spray rails and her fixed swimming platform aft with wide sweeping stairs leading to the main deck.
The interior layout features a dedicated gym with separate hammam accessible from the guest corridor and the main deck. Six staterooms including a full beam VIP stateroom on the lower deck, and the traditional owner’s stateroom and main saloon/dining on the main deck and the upper saloon above.
The interior design by Sinot design echoes the beach style theme of the exterior.