The SPS (Saildrive Propulsion System) provide minimal resistance when under sail and during races. The systems have the following features:
- The system is lightweight - Using CP Prtopellerr - Capable of both propulsion and regeneration - Require minimum space inside the hull and engine room - Can be posisitoned near the center of the vessel, for optimum weight distribution - Highly efficient when motoring. - Replace a normal stern propeller
The SPS system stays down but the propeller can go into feathering posisiton. This will give a little resistance when sailing but the resistance is far less than from a normal shaft, P bracket and propeller in sailing position. The SPS system takes up a lot less space in the engine room since there is no need for a wet box.
The SPS can be driven by an electrical motor or a combustion engine.
The SPS can have an electrical motor mounted directly on top of the leg. This will take up as little space as possible in the engine room.