Check message number 14326 "eJetSki - Green Samba" for some information about a company that has built successful proof-of-concept vessels that are tackling the idea of an electric Jet ski. They found that trying to swap in an electric motor for the IC engine really wasn't delivering any reasonable sort of performance, so they started from scratch and focused on a design that is optimised for electric propulsion.
If you do a wider internet search on their efforts, you can piece together some of the issues that they've come across and how they've tried to solve them. The big trick is to drop the power requirements to a range that electric drive and batteries can support.
I won't say that it can't be done, but this is pushing the limits of what electric drives can do practically.
Fair winds,
Eric
Marina del Rey, CA
--- In electricboats@yahoogroups.com, "rkmcafee" <rob_mcafee@...> wrote:
>
> Hi,
>
> I'm a new member and joined to learn what I can about converting a 2-stroke jet ski to use an electric motor. Is it even possible to convert such a boat to electric without sacrificing performance? Or is this a complete pipe dream?
>
> Here are the current performance specs for the sake of comparison. The current engine is a 650 cc motor that makes around 90 hp, turning a 15 degree impeller at around 6000 rpm at full throttle. The hull is about 7 ft long by 2 ft wide, with around 6 inch draft when moving at half-speed or faster. It has a top speed of close to 45 mph.
>
> Any thoughts? I'm mostly interested if this is theoretically possible, so for now, cost isn't the issue.
>
> Thanks,
> Rob
>
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