March 2011 Blog Posts (4)

Sun Challenge Sailing: Sailboat Goes Electric

Sun Challenge is a project being carried out by John Wilson, who has converted his C&C 35 to run with an Electric Yacht electric propulsion system. The electric conversion experience, along with photos, videos and a description of the Sun Challenge project and Solar Village, you can check out…

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Added by Greg Martin on March 27, 2011 at 7:30pm — 1 Comment

Boats: The Other Electric Vehicle - Transportation | GOOD

eboat2 Good is a website that provides a progressive viewpoint on a range of topics in today's world. In their transportation section, covering future developments, an interesting article was written by Christopher Mimms March 22, 2010 about the future of boating. There is a discussion about electric boating in particular with a detailed history and explanation of notable examples. Also included are a couple of unique illustrations with an electric…

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Added by David Jones on March 26, 2011 at 7:30pm — 1 Comment

Restored Chesapeake Skipjack Gets E-Motion Hybrid Drive | E Motion Hybrids

WS400 E Motion Hybrids is a company that produces electric propulsion systems for vessels, also under the name of Electric Marine Propulsion. On their company website they have a news link which lists several notable projects that they have been involved with, including a recent retrofit of a classic Chesapeake Skipjack working sailboat. The 44' Caleb…

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Added by David Jones on March 16, 2011 at 8:00pm — 1 Comment

U.S. Navy is Going Electric | Electric Seas

destroyer-aegis-ddg-103 By Greg Martin   In a move that will reduce operating costs and logistic vulnerabilities, the U.S. Navy is taking steps along with all branches of services to reduce dependence on fossil fuels. In July 2009, The Naval Sea Systems Command (NAVSEA) awarded a contract to DRS Technologies Inc. of Fitchburg and Hudson, Mass to develop…

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Added by David Jones on March 2, 2011 at 6:00pm — No Comments

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timothy norton is now a member of Electric Seas
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Patrick Logan posted a discussion

How to Determine Power (force) Needed to Push a Boat

There has been a longstanding "rule of thumb" to determine the motor size for an electric repower: Take the existing diesel horsepower and divide by three.  Multiply that number by 750 to determine the (continuous) wattage rating for a motor. This inserts a lot of assuptions and ignores every relevant fact needed to determine the best solution.There are a lot of spreadsheets out there that will give an approximate answer.  I've seen them.  I've delved into their formulas.  I've found each and…See More
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Pat Neal posted a discussion

Belt size

As i stated in a post last winter I was having belt problems. the 1in L series timing belt was skipping teeth @ about 80-90 amps on my 48v system. I was having to much fun to change it over the summer. So I carried 2 spare belts all summer never needed them but better safe than sorry But have decided it was time to fix the problem so i ordered a set of cogs and a 1in h series belt. The end results are 18x15 3 blade with a 3:1 reduction and ME0913 motor @ full throttle now draws 150amps @ 49.6…See More
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Ard Van Leeuwen updated their profile
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Oceanvolt Electric Saildrive Group

Oceanvolt Ltd is focused on producing electric propulsion systems for catamarans and sailboats. Each and every part of the system has been specifically designed for electrical use. Compared to combustion engines, this system is silent, simple and reliable. “Less from nature, more for people.” Discover technology that respects both people and nature.See More
Jan 26
Profile IconBen Ellison and Ard Van Leeuwen joined Electric Seas
Jan 25
Bob Jennings posted a discussion

Used Electric Motors 4 Sale

I just saw this on the Cruisers Forum & thought I'd post it here in case anyone's interested. http://www.cruisersforum.com/forums/f64/electric-motor-setup-for-catamaran-thoosa-9000-a-159128.htmlSee More
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Patrick Logan is now a member of Electric Seas
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New Battery technology

In electric yacht's  new year's message Mike Gunning mentioned  higher performing AGM based batteries that take advantage of TPPL and carbon additive batteries.  Does anyone know where I  can get more  information  on  these new  battery  technologies?Skip See More
Jan 13
Christopher Benson is now a member of Electric Seas
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Dave posted a discussion

How do I edit my page

Hi, I'm new here, how do I edit my page, as my blog address is incorrect
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Dave is now a member of Electric Seas
Dec 29, 2015
Nick Anderson posted a discussion

Battery monitoring and charge controller recommendations

GreetingsI have a 48V 300ah system for my ElectricYacht install. I am looking to provide both solar and wind generation to the system, solar first, then wind. I am looking at about a 200-300w Solar system due to current space limitations, and about 200w 48v wind.It appears that most 48v wind generators are self-regulating now - should I assume that I do not need a charge controller for both wind and solar?I am looking at each of the following charge controllers:…See More
Dec 22, 2015
Grant Corson is now a member of Electric Seas
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