There are a lot of good electronic speed controllers (ESC) also in the 12V range and high power ratings in the modelairplane modelcar industry (ao Hobby King).
For modelcars and boats they have forward and reverse, for modelairplanes they only have forward.
The only drawback is they are wireless (transmitter and receiver) maybe even an advantage when not close to the troller.
There are also simple wired servotesters wich you can use to controll your ESC.
If you know someone with rather basic knowledge of electronics it is rather easy to alter the ESC to manual operation.
Just look around and google.
Succes, Carel
ps; Model ESCs are for short energybursts 5 min max so look for an ample safetymargin. Eg 250 watt (twice the power for a standard human wich is ample for a small sleek boat) I would choose an 700 to 800 watt Controller.
Resistor controllers allways use max power and destroy the energy that you do not want that moment, such a waste (and heat).
----- Original Message -----From: Kirk McLorenSent: Sunday, June 16, 2013 4:26 PMSubject: Re: [Electric Boats] Re: Minnkotas
I wouldn't use that one, it was an example of what to search for.remember you are unique. Just like the rest of us.
From: Eric <ewdysar@yahoo.com>
To: electricboats@yahoogroups.com
Sent: Sunday, June 16, 2013 2:37 AM
Subject: [Electric Boats] Re: Minnkotas
Excellent solution, if you never plan on exceeding 96W (about 0.15hp) at full power.
Eric
Marina del Rey, CA
--- In electricboats@yahoogroups.com, "Kirk" <kirkmcloren@...> wrote:
>
>
>
> --- In electricboats@yahoogroups.com, R&M Mair <fullkeel2000@> wrote:
> >
> > I have seen info on here that the cheaper minnkota motors use resistors to control speed. Anyone notice significant run times between full speed and lower speeds?
> > Richard
> >
> http://www.amazon.com/LEDwholesalers-Dimming-Controller-LED-Lights/dp/B003L4KKF2/ref=pd_sim_hi_3
>
> this one is only for 12 volts but when you see how cheap it is using resistors is silly.
>
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