January 2011 Blog Posts (4)

Introducing the Aequus 7.0: Solar Electric Family Launch | EV World

Aequus7_0_solarmotorlaunch EV World has an article featured on June 30, 2010 about the new Aequus 7.0 Solar electric family launch. Built in Rochefort France by champion sailor Bruno Hervouet, this all electric cruiser has a solar panel covered canopy and attain speeds of 7 knots and can cruise for up to 8 hours, even without solar assist. Read more about it…

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Added by David Jones on January 12, 2011 at 7:30pm — No Comments

Builder of Electric Motors for Boats on a Green Mission | The Japan Times Online

The Japan Times Online featured an article on December 14, 2010 about Kiyoshige Ito, the president of Ito Company, which produces electric propulsion systems for boats in Japan. Motivated by a desire to do something about climate change, Ito's company produces electric outboard motors for fishing boats. Read more about Ito's efforts in…

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Added by Greg Martin on January 10, 2011 at 7:00pm — 1 Comment

Boating Re-Volt! | Scruffie Marine

Scruffie Marine is a boat design shop in Queensland, Australia that designs seaworthy, classic and environmentally minded boats. The Scruffie Marine blog, written by Derek Ellard, featured a post on October 14, 2010 which is a concise and fun to read introduction to electric boating, with a bit of history and perspective. Check it out…

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Added by Greg Martin on January 5, 2011 at 8:00pm — No Comments

The Green Samba – The First Viable Electric Personal Water Craft | GizMag

GizMag, May 19, 2010 posted an article about the first electric powered Personal Water Craft (PWC), the Green Samba. This technological wonder is just as fast and fun as a gas powered PWC, but it's quiet and doesn't pollute the environment! Read about it…

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Added by David Jones on January 4, 2011 at 5:30pm — No Comments

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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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Sally M. Reuther posted a page
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Sally M. Reuther posted a page
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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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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
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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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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
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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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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
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