I am not sure what sailboat you are considering buying butthere are three companies that i know of that appear to drive a boat in the48ft 30000lbs range up to hull speed. I will point out that a 48ft boat at30000lbs. Weevaluate a system dry weight numbers and not the fully l oaded numbersunderstanding that the sailing weight is greater.
System Speed & Power (LOA 48ft, LWL40ft, beam 14ft,Displacement dry 30000lbs(loaded likely 15% more))
Kts Watts
2.6 960
3.8 1920
4.6 3840
5.1 5760
5.9 7680 Recommend a 10kW genset for thiscontinuous speed
6.5 10560 Recommend a 15kW genset for this continuousspeed
7.1 14400
7.8 19200 This is what a 20kW system would provide
8.4 23040 hull speed reached at about 24kW
Hull speed 8.47
&n bsp;
Dedicated Marine system (kits not evaluated)
Bell Marine has the 30kW system at 144v liquid cooled (peakis 43kW continuous is likely the 30kW) reduction gear, I believe it is an acinduction motor and I would estimate 350lbs. can be placed in series
Elco has the E70 is a 108v system peak 51.5kW and continuous29kW air cooled direct drive induction ac motor system, 650lbs (number ofinstallation unknown – I also believe you can get it as a 94v system at lesspower)
Electric Yacht QuietTorque 40.0 96v air cooled dual powerheads peak 38.4continuous 32.6kW, PMAC motor system. 155lbs (over 20 installations of boatover 25000lbs dry) - most of the larger installations are 48v QuietTorque 20.0systems. Can be placed in series
Please add to this list as I suspect there are otherespecially from Europe of similar size.
Mike
Electric Yachts of Southern California/Pacific
Posted by: "gnhbus@aol.com" <GNHBus@aol.com>
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