Propulsion

The LeBreton 45 will use the latest available technology, both in its sail plan, and its auxiliary power.

A diesel electric system, to be offered as an option, provides ultra-quiet motoring, and significant fuel efficiency benefits over conventional diesels. In addition, placing a high torque electric motor in each hull makes the yacht extremely manoeuvrable under power.

The fully integrated system comprises a 14kw generator and two direct drive 20hp electric motors, and is covered by a full replacement 2 year warranty. The system is as much as 15-20% more efficient than conventional diesels. This is in part because electrical transmission losses are less than mechanical transmission losses, and in part because the diesel is able to run closer to its optimum rev rate for more of the time. From a weight perspective, conventional diesels and the hybrid system are similar. However, compared with a twin diesels and a genset, the hybrid system is considerably lighter.

The alternative is a pair of conventional 29hp diesels.

In either case, power units will be located below the pilothouse sole, keeping weight centralised, and thereby reducing pitching motion.