T-Pain Is On A Boat: Re: [Electric Boats] 6HP and 12 HP Solomon Technologies Motors for Sale

Friday, October 28, 2011

Re: [Electric Boats] 6HP and 12 HP Solomon Technologies Motors for Sale

For the record I'm not sure what the actual size of the prop is. Just from looking at the original prop last year I remember it was at least a foot but I doubt it was any more than 18". The auto prop that replaced it has a variable diameter and pitch.

Carter

From: Steve Dolan <sdolan@scannersllc.com>
To: "electricboats@yahoogroups.com" <electricboats@yahoogroups.com>
Sent: Friday, October 28, 2011 11:17 AM
Subject: RE: [Electric Boats] 6HP and 12 HP Solomon Technologies Motors for Sale

And I'm running 2 18" props on 2 ST74's on a 41' cat and think the package price is damn good. The controllers are $1500 a piece on their own (advanced Motion Controllers by the way). Alex (the seller) is a straight up guy and VERY knowledgeable on EB's. His question on sizing was probably based on heavy sea use and no sails? Your mostly inland I believe.

Steve in Solomons MD

Lagoon 410 SE

I use a 16x16 with a st37 5 ton. Wish it was bigger

Kevin Shepherd

On 2011-10-27 8:22 PM, "Eric" <ewdysar@yahoo.com> wrote:

Hi Carter,

The general guideline is 1kW of motor for each ton of displacement. You can use much less in fair weather but for general safety, the 1 kW per ton is a good compromise. With 15kW, you should be able to hit 90-95% of hull speed at full throttle.

It's your boat and you can put in whatever you want, but our guidelines come from the combined experience of many installations.

I don't know where you sail, but if you're underpowered, you might run into problems if you need to motor against a current and a headwind when heading into a harbor.

A 12" prop sounds pretty small for a 45 boat, my 30', 5 ton ketch was running a 13" prop on the 12hp Yanmar diesel. I went up to 13.5 when I switched to electric.

Fair winds,
Eric

BTW, I think that a $6000 discount seems pretty generous. I wonder what a 40hp diesel installation costs...