I hope to convert my PDQ32 to electric motors in a year or two. I have not made any final decisions as to what approach I will use but as weight is very important on a small cat I will probably use a small genset and not add a lot of batteries.
For those of you interested in exploring electric options you might want to check out http://www.ecyclemarine.com - they are showing a conversion of the Yamaha 9.9 to electric that looks like a rather simple switch.
It does seem that electric drives will be the trend for cats in the future.
electric conversion option
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electric drives
I have not had any contact with the e cycle people but from what I have determined it seems that you only need about 5 hp electric to equal the performance of a 9.9 gas engine.
In order to run most efficiently you probably need to plan on running in the 6 to 6.5 knot range as I think getting extra speed would greatly increase power consumption. If you are looking for higher speeds you probably need a little more power and accordingly a bigger generator.
other sites to look at for info:
http://www.rayco.com
http://www.ozecodrive.com
http://www.asmomarine.com
In order to run most efficiently you probably need to plan on running in the 6 to 6.5 knot range as I think getting extra speed would greatly increase power consumption. If you are looking for higher speeds you probably need a little more power and accordingly a bigger generator.
other sites to look at for info:
http://www.rayco.com
http://www.ozecodrive.com
http://www.asmomarine.com