Two LNG-fuelled MTU M65-N generator sets connected to a battery bank that provides 1 MWh of power while in port are what powers Crystal Blue. While underpower, power is delivered to two carbon Azipull thrusters that can provide a top speed of 20 knots.
The scarcity of LNG fuel in common superyacht hotspots may make this concept seem far ahead of its time, but Rolls Royce address this problem by designing Blue Crystal to operate together with Blue Shadow, a 42-meter remotely controlled support vessel. Blue Shadow will act as her mothership’s dedicated LNG fuel bunker along with carrying toys and supplies.
Crystal Blue’s fuel tanks will have a capacity of 3,000 nautical miles without refueling, according to Henrik Alpo Sjöblom, Rollys Royce Ocean Team project manager. With the Shadow’s additional fuel capacity, the range increases to 4,400 nautical miles, meaning that most typical yachting areas are accessible.
In addition to its clever propulsion system, Crystal Blue also features an innovative operation station unlike that of any other yacht. The bridge is located below the bow inside the vessel and allows the crew to monitor and control the yacht using sophisticated sensors, cameras, display screens and situational awareness technologies.
Crystal Blue mixes the present and the future as a number of superyachts are already fitted with Rolls Royce’s Unified Bridge design along with technology from its first remote-controlled commercial tugboat tested earlier this year.
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