And I will add that all of Torqeedo's outboards (in production for almost 6 years now) and all of the Parsun/Motenergy electric outboards (in production maybe 3 years now) have always been brushless.
The old Briggs electric outboard used a Sevcon controller, but in that case it was a brushed application.
Todd
www.epowermarine.com
--- In electricboats@yahoogroups.com, "Eric" <ewdysar@...> wrote:
>
> Hi DRHitch,
>
> I wonder if Nautique's boat show model will be much different from the one that we discussed in detail back in Sept 2011 (see posts 19834, 19835, 19840, 19841, and 19842). EPIC is another all-electric wakeboat manufacturer, see posts 19861 and 19866.
>
> From what I understand, all of Electric Yacht's, and Propulsion Marine's current offerings use brushless motors. Motenergy (the new name for Mars Electric) builds the ME907 and ME913 PMAC motors used by these vendors, they are also included in the current sailboat kits from Thunderstruck. Advanced Marine Electric Propulsion also uses brushless motors. The Propulsion Marine drive that I bought in Jan 2010 came with a brushless motor.
>
> So I would answer your first question with "about 2 years ago".
>
> The Sevcon Gen4 controller is proving to be more efficient than the Millipack controller and is very well suited for a marine environment. I don't think that the Gen4 will work with a brushed motor.
>
> Fair winds,
> Eric
> 1964 Bermuda 30 ketch, 5.5kW Propulsion Marine drive, 8kWh Lithium batteries
> Marina del Rey, CA
>
> --- In electricboats@yahoogroups.com, "DRHitch" <drhitch@> wrote:
> >
> > Nautique just announced their 2nd venture into all-electric boats. The wakeboard boat will be unveiled at the Detroit Boat show (mid-February; I may attend)
> >
> > Interestingly, the motor/control system is a joint venture between Nautique and a Canadian company LTS Marine, who, in turn, procure the motors from TM4 (http://www.tm4.com/en/electric_powertrain.aspx).
> >
> > TM4 has a brushless motor and controller that they have leveraged from their work in the automotive space.
> >
> > So.....how long will it be that electric boats will drop brushed motors (ala Mars) for brushless technology? is the consensus that SevCon controllers are pretty good for marine applications?
> >
>
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