Hybrid-Electric Small Vessel Drive

This project is about developing hybrid electric propulsion for small sailing vessels. The test ship is Hale Kai a cutter rigged Golden Hind 31. All designs are open hardware and or will be available in this repository.

The premise is that we would like, under normal circumstances, to have no need for the internal combustion engine. Manoevering, going in and out of port and travelling short distances should be possible under electric propulsion. However, the energy density of even the best batteries is far too low to allow for extended voyages under electric engine. One solution is to install a generator based around an internal combustion engine is reasonable. It would be far too expensive and would not make sense to replace a perfectly working diesel engine with a diesel generator, so we keep the existing engine and couple an electric engine to the drive shaft. In this way, we have,


Documentation of various system elements