A Photo & Discussion Forum for Wharram Design Enthusiasts
The Reepower electric engines aren't enough powerful for the Tiki46, so the Torquedos. Our Belgium friends installed one 10kw electric brushless Bellman pod in each hull of their Tiki46 Apatiki. It's a minimum to get a good maneuverability in strong winds. You can have a look at their website :
http://tiki46-2009.skynetblogs.be/archive-month/2009-01 As each pod is in front of each skeg, it's very efficient to turn. The weakness is it's a serial hybrid system with about 30 minutes of use at full power or a few hours at low powerful on a flat sea. If the diesel generator has a failure or the electronic driving the engine is out you're not very relaxed (I prefer the brush electric engines which can run without electronic in emergency mode).
Personally I prefer to have the electric engine in the hull for easier maintenance and for offshore cruises I prefer a parallel hybrid system with a classical diesel engine running the propeller + just after the gear box in parallel an electric engine abble to move the boat for the arriving and departure of moorings and to regenerate the batteries under sails. With a such hybrid system in each hull you have a very good reliability, I think to use only the electric engines 80% of the time when motoring, using the diesel engines only to enter in a shelter against strong winds or currents or to motor a long time in high pressure areas.
Sorry, now I've to sleep, I'll tell you more about my own choice later.
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