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I am in the market at this time for a sailboat around 20' which I plan to power with electric propulsion. I am interested in the Ray or Solz outboard. I am a sailboat type from way back. I love

Welcome to the club Marvin. If it is 37 HP diesel you will probably need 10 to 15 HP to emulate the performance characteristics. Depends on the prop and if you and the boat are willing to have a

Greetings everyone,<br><br>My name is Marvin Hamon and I have joined this group to dig a little deeper in my interest in electric power for boats.<br><br>I own a 39' custom wooden ketch that is

Like was previously stated prop sizing is the all important factor. In regernation and also in propulsion. If you haven't read it I suggest you get a copy of Dave Gerr's "Propeller Handbook". It is

Regeneration depends on the air, hull speed of vessel, prop size and where the prop is located in reference to hull form. With a 13" prop i am guessing that the vessel is only 25 to 28 feet with a

I think the figure is $1.7M todate...but after reading Andre Mele's "Polluting for Pleasure" it is worth every penny of it. Thank you for the kind statements and we welcome your visit and anyone from

Did I break some kind of rule with that last post?<br><br>If I state it more generally is the following OK?<br><br>How much energy is generated during regeneration by a 4KW motor?<br>If you have, oh

Three percent seems very little. Thank you for your frank reply to my questions. Your patent appears well written. You obviously have invested much into the entire project and I wish you well. The

One of the messages on the board which is addresed to Ewhel will not allow reading of the whole message. If the author could kindly re-post it I would be more than glad to answer as soon as I

Yes both motors are PM magnet motors and approximately 3% is lost in the gears during start-up (0-500 rpm)after that the gear set turns as a fixed unit and there are no losses. Unfortunately the

A question for Dave Tether:<br>How much energy is generated during regeneration by the 4KW Ewheel?<br>If you have, oh lets say, a 13 inch three blade prop for example, how much energy(lets say in

US Patent #5,863,228 is very interesting and I hope that all members review this document for what it teaches. In that context, I note that the claims all recite a device having two motors (a ring

Lifeline batteries take a charge quickly and produce no fumes...they can be mounted upside down, are totally maintenance free and are used on stealth bombers....any other questions ? If regenerative

PS....before you decide to buy a motor that regenerates..you might want to check US Patent #5,863,228. Also...check the cost of the other trinkets necessary to hook that motor up..ie.the thrust

Try Brimbelow Engineering and Brimbelow.co.uk. Of the brushed DC motors Brimbelow Engineering in the UK is the best. There motors are up to 2KW ...or 3 HP and are marinized with at built in

Bill,<br> I'll let you knwo on the motor as soon as I get the info. Concerning your battery questions<br> Here i a link to a web site that will teach you everything you everwanted to know about

I have read some about all the different batteries, wet leads are the cheapest, AGM's can be charged the fastest, ect. So, what are the groups opinions on which type of battery is best for the riggors

Don:<br><br>If you find out more about PM motors in the 3 to 6 HP range, please let me know, I am very interesed.<br><br>Bill

In my case, it is definately a matter of cost. I am building a sailboat, and the electric auxillary motor is only a small part of the total boat. I am sure that the ewheel is great, but I am trying to

The Navey and Elco and many other boats builders and user have been using brushed motors in bilges for over 50years. They do work modern motors come in various enclosures including IP67 which are