The Norwegian Epic was only delivered to the Norwegian Cruise Line back in 2010, but the company understands the need to make improvements to the ship. One system that takes the most pounding on any cruise ship is its propulsion and so has looked to Rolls Royce to upgrade the package.
Rolls Royce has worked on an innovative permanent magnet tunnel thruster, which is a far better solution than the current one. There are several advantages to such a system, one of which is the reduction of noise, although there will also be a noticeable difference in the amount of vibration, as this will also drop considerably.
Another advantage, one that will appeal the Norwegian is that there will be an increase in power output by as much as 25 per cent, even with using the same size propeller. Repairs will also become far easier, as the system can be removed underwater, meaning no waiting for an opportunity to get into a dry dock.
The chairman from Rolls Royce seems very happy that Norwegian is the first cruise line to opt for the new propulsion package, and hope other companies will follow. For more details you can read the full press release.