November 2010 Blog Posts (3)

S/V Intrepid Voyage Log: Okinawa, Japan

Sailing an electric powered boat around the world

shisa By Greg Martin The voyage of Project Intrepid Seas begins on the beautiful subtropical Pacific island of Okinawa. Situated at 26 deg. 3o' N, 127 deg. 45' E, Okinawa is the southern-most prefecture of Japan. Okinawa, the main island in the Ryukyu Archipelago…

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Added by Greg Martin on November 20, 2010 at 6:00pm — No Comments

The Conversion of NB Worcester to Electric Drive

Worcester NB Blog Edwin Osborn has an interesting blog about his experiences converting his Colecraft 38' ex-hire boat to run on electric. An interesting experience with lots of technical details- check it out…

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Added by David Jones on November 4, 2010 at 5:30pm — 1 Comment

Day 30: Planet Solar Continues Round the Globe Challenge | Electric Seas

planetsolar_departs_monaco By Greg Martin On September 27, 2010, Turanor Planet Solar, a solar powered catamaran built in Germany, set off from Monaco on a planned 160 day voyage around the world. The vessel, 31 meters in length and covered with 537 square meters of solar panels is powered entirely by photovoltaic energy. The vessel's solar panels can create…

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Added by Greg Martin on November 1, 2010 at 7:30pm — No Comments

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Irie Electrics updated their profile
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Davide Sola is now a member of Electric Seas
Dec 5
Peter Cinq Mars is now a member of Electric Seas
Nov 29
Pat Neal posted a discussion

New boat taking shape

Taking on another big project and just looking to see if anyone might have any feed back4 years ago I restored a 33foot Morgan O/I and repowered  with a Thunder Struck 10kw drive and a 310ah FLA battery bank I am very happy with this boat and lived aboard for 3 yearsBottom line I met a girl that likes living aboard as much I do so I bought a 43 foot Gulf Star trawler no mistake about it. Its a huge project but it is moving alongIt is powered by Perkins 6-354s my plan is to sell them and repower…See More
Nov 27
John Stone is now a member of Electric Seas
Nov 23
Tom Hruby posted a discussion

Electric power for a 16 ft runabout

In the mid 1990's Phil Bolger, a naval architect from Gloucester Massachusetts, designed an electric runabout for the home builder called the Lily.  Recently there has been some interest in upgrading the design of the propulsion system and batteries to make better use of current technologies.  Here are my suggestions for upgrading the original system in Lily. The MotorsIn 1995 Lily was set up with a 24 V trolling motor, and I consider trolling motors to still be the most cost effective option…See More
Nov 20
Patrik Oscarsson updated their profile
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Irie Electrics is now a member of Electric Seas
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Profile IconPatrik Oscarsson and Donald Gilchrist joined Electric Seas
Nov 9
Mark Frasca posted a discussion

Mini BMS

I'm closing in on making the switch to lithium. I am using a Mini BMS for the battery management and having trouble getting the AC relay for the charger to reset. The "key" terminal on the head board is connected to the switch but it does not reset the relay when cycled on and off. If I physically disconnect and reconnect the 12 volt supply to the board the AC relay resets. Does anyone know what the "key" terminal on the head board wants to see?
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George Ojdrovich posted a discussion

Electric sailboat endurance estimates and experience

We talk a lot about range in miles at various speeds, but I think for cruising sailboats the real question is how long can you go without needing to recharge. This includes house loads and motoring.When we had Snow Lily (Tartan 34C) repowered my goal was to get 5 to 7 days cruising without needing any sort of recharge. I was cautioned to go with diesel as range would be a problem, but I really think in terms of sailing and not motoring. The motor is only for in and out of the tight marina, on…See More
Oct 8
Jim Rockfinder posted a discussion

Post your boat speed !!!

I'd like to try to get a handle on boat speeds.So please:  post your boat details and speeds!  I'll get the ball rolling....- Defintion of "takeoff weight":  just like aircraft:  entire weight of craft + batteries + humans + everything.  If you don't know, take an educated guess.- conversions fyi:        1km/hr = 1.6mph        1km/hr = 1.852knots- HOW I MEASURE SPEED:   I find GPS's generally suck at reading low speeds.  What I do is take two known points (the corner of my dock, and the corner…See More
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