T-Pain Is On A Boat: Re: [Electric Boats] Hunter Cherubini 37 conversion

Monday, October 20, 2014

Re: [Electric Boats] Hunter Cherubini 37 conversion

Curt,

Much depends on what top motoring speed you want to achieve. The faster you want to go the more kW you will need. Also, what are you doing with your boat? Are you mainly day sailing, or are you cruising? Also, where are you sailing? Conditions are always a factor in sizing the system to fit your boat and sailing needs.

A 30', 18,000lb boat on a lake or protected bay is going to be different than a boat that is cruising coastal areas, or further into open water. Also, make sure you know what the continuous kW rating is on the systems you are looking at. Peak ratings may be listed, but continuous is what is important.

Your boat's calculated hull speed is 7.3. A boat under sail can go past it's hull speed, but not under power unless you have a favorable current or wind helping you along. If you want to push your boat at 7 knots under power you are going to be looking at higher a kW system - 16kW or more. (That is continuous rated) If you are happy motoring at just over 6 knots, then something around 10kW to 12kW (continuous) will work.

Look at all of your options and then you will be in a better situation to decide if electric is the best plan for you. Sometimes cheaper is not always better.

Sally Reuther

Annapolis Hybrid Marine

On Sat, Oct 11, 2014 at 12:43 PM, e.nichols@cox.net [electricboats] <electricboats@yahoogroups.com> wrote:

Good Morning,

Thanks for the folks that started this. My Hunter has a Volvo D1 30 that I am at wits end with. It generated 27 HP before its death.

I am contemplating a electric conversion.. My ladies displacement is 17,800 with thhe motor in, and none of my junk.

She is a fairly easily driven hull that will do 8 knots under jib alone.

I was looking at the Thunderstruck 12.5 KW system and the 15 KW system from electric yacht.

Any advice on this would be appreciated.

Regards,

Curt