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post #21 of Old 11-08-2011
Join Date: Apr 2011
Location: Southern California
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We have installed some 575 electric drives on boats since the early 1990's; which is arguably the most experience of any manufacturer.

Here is the skinny:

1) for boats under 4,000 lbs; pure electric is a very compelling proposition. If it was my boat, I'd always use electric in anything under 4,000 lbs.

2) for boats over 7,000 lbs; one has to be very clear about one's requirments. A typical range is going to be 90 minutes at hull speed and 3 hours at 1/2 hull speed. This ranges can be significantly extended motor-sailing. These ranges and also be significantly decreased in heavy weather.

3) hybrid systems, at this stage, work fine but tend to be pricey and the user should have a reasonable technical understanding of the system.
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