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Torqeedo's electric propulsion for new VIKING LifeCraft™

Seawork exhibitor, and 2018 Maritime Sustainability Award winner, Torqeedo has developed a specialized high-thrust electric propulsion system for VIKING's revolutionary new LifeCraft™ survival craft.

The 203-passenger LifeCraft is a motorized inflatable vessel designed to deploy from a shipboard storage/launch station. Passengers will board the boats through escape chutes. Once each boat is fully loaded, the crew manoeuvres it to a safe stand-off distance from the ship using the electric motors.

Torqeedo’s electric propulsion system is a key enabling technology for the self-propelled inflatable survival craft because, when stowed on board, they don’t require frequent access for maintenance of fuel, oil and ignition systems. This allows the electric motors and batteries to be integrated into the compact self-inflating design.

The LifeCraft’s propulsion package consists of multiple, smaller motors for redundancy and manoeuvrability. Each craft has four Cruise 4.0 electric pod drives installed, powered by Power 24-3500 lithium-ion batteries in 48-volt banks. One motor is installed at each corner of the vessel and all are networked into an integrated energy monitoring system, giving the operator a clear view of motor and battery status at a glance.

The electric boats successfully completed heavy weather sea trials in October, proving their ability to deploy and operate reliably under the most extreme wind and sea conditions. The tests, witnessed and approved by DNV-GL, took place in the North Sea. Wave heights were between 3.6 and 4.6 metres (11.8-15.1 ft) with peaks up to 10 metres (32.8 ft) – 50 percent above the stipulated heavy weather testing requirements – and wind gusts up to 18 metres per second (40 mph) were recorded. The boats were launched and manoeuvred along the weather and lee sides of the ship, demonstrating their flexibility to move rescue capacity to wherever it is most needed. They also performed a 24-hour controlled drift test in battering seas with no damage to the vessels.

“The LifeCraft exhibited superior manoeuvrability, sailing away from the ship much faster than required,” said Niels Fraende, VIKING’s vice president of sales for Cruise & LifeCraft. “We achieved this with the wind at our front as well as our backs, which makes it an even more impressive feat.”

“VIKING’s new LifeCraft is truly innovative and offers compelling benefits to passenger ship operators. It has been a pleasure to participate in its development,” said Dr. Christoph Ballin, co-founder and CEO of Torqeedo.

VIKING received official approval for the LifeCraft survival craft on March 8 from the Danish Maritime Authority (DMA) as a “Novel Life-Saving Appliance” meeting the requirements for replacing conventional lifeboats on passenger ships.

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