Meet Electra, Heesen second hybrid yacht

© Dick Holthuis

Heesen has launched their second hybrid yacht in the 5000 aluminum FDHF class: Electra. A yacht with a distinctive exterior and a progressive and über-efficient shallow-draft hull. The proven and versatile hybrid propulsion package combines a conventional diesel propulsion with and efficient diesel-electric propulsion.

Electra’s high-tech heart is wrapped in a contemporary design package that comes in just below the 500GT threshold. Frank Laupman of Omega Architects penned her distinctive profile. A near-vertical bow, long waterline and extensive use of glass characterize her exterior lines. The layout offers plenty of outdoor living areas. From the spacious sundeck with Jacuzzi, to the relaxation area in front of the wheelhouse, outdoor dining on the bridge deck aft, the lounging area on the main deck aft, and a fixed swim platform, every centimeter is conceived to help guests enjoy life at sea.

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More Quiet and fuel-efficient

Compared to a traditional diesel engine arrangement, the hybrid power and propulsion system chosen by Heesen is quieter and more fuel-efficient. It offers cost-saving benefits and flexible power management as the yacht operates in four different cruising modes:

• Hybrid Mode: up to 9 knots at noise levels of just 46dB, equivalent to soft rain! Two water-cooled DC electric shaft motors of 127kW each quietly power the yacht. The benefits are silent cruising and higher maneuverability in close quarters.
• Economic Mode: Speeds of 9-12 knots with main engines on and generators off. Ideal for longer passages, this mode comes with several interesting perks – frugal fuel consumption (at 12 knots the yacht burns only 98 liters per hour) and extended generator life.
• Cruising Mode: Speeds of 12-15 knots. This is the traditional mode, where the diesel engines drive the yacht’s propellers and the generators supply the hotel electrical demand.
• Boost Mode: For top speed of 16.3 knots. Generator-powered shaft motors are brought into service alongside the main engines giving an extra kick of power to the gearbox.

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After completing the commissioning of her systems, Project Electra will undergo intensive sea trials in the North Sea and is due for delivery in April 2020.