December 2010 Blog Posts (4)

THE BIANKA LOG BLOG: END OF THE SEASON THOUGHTS OF AN ELECTRIC SAILOR: 2010

The Bianka Log Blog is Captain Mike's well documented log of his experiences electrifying his Nonsuch 30 Bianka. At the end of this last season, Capt Mike reflects on his experience and decision to go electric. You can read this insightful and informative post…

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Added by Greg Martin on December 15, 2010 at 7:00pm — 1 Comment

Introducing the Hunter 27E All Electric Sailboat and Green Award Winner | SAIL Magazine

SAIL Magazine posted an article in November 2010 about the new Hunter 27E electric auxiliary sailing yacht. This article describes the new yacht, which uses an ELCO 27 hp motor, powered by a 72 volts DC battery pack. This is an amazing yacht and you can read all about it…

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Added by David Jones on December 12, 2010 at 7:30pm — 1 Comment

Endeavour Electric Boat Tests Waters off Newport | Soundings Magazine

Soundings Magazine, featured a story in January 2010 about the Hyatt Regency Hotel in Newport RI which uses an Endeavour Green 24 ft electric boat to ferry passengers around the bay. Their experiences using the boat are described in the article which can be found…

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Added by David Jones on December 8, 2010 at 8:00pm — No Comments

GREEN BOATING: What is Green Boating? Part II (Navigating Green Marketing in the Marine Industry)

Green Boating is a website that follows and reports on the issues related to green boating. The first thing you have to ask is, "What is green boating?" With so much "green washing" this can be confusing. An interesting introduction and discussion about this is presented…

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Added by Greg Martin on December 5, 2010 at 7:30pm — 1 Comment

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John posted a discussion

Roberts Spray 36 - Steel ketch - Eelctric propulsion conversion - BLACK MAGIC!

Hi all,I'm in really really big big need of some opinions and advice.I'm looking onto converting my vessel to electric propulsion.First boat details:Spray 36'  - 32ft LWL, 4.3ft Draft, 12ft beam at WL, 40000lbs displacement.She has round bilge of steel.She's fitted with a  fixed 3 blade propeller of 18 inch dia. The shaft is 1&1/2 inch thick. Now my goals:Theoretical hull speed is 7,5knts and I'm aiming at 80% of that.I can't afford Lithium batteries so I'm going for AGMs. I can fit up to 8…See More
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Max Sail posted a discussion

Right System for a Hallberg Rassy Rasmus 35?

Hello all.. I'm a longtime lurker in the process of buying an old Hallbery Rassy Rasmus 35. I'm looking for suggestions for the right system for this cruising boat. It's 12,100 pound displacement.http://sailboatdata.com/viewrecord.asp?class_id=5189Electric Yacht's Quiet Torque 10 48v system says it goes to 35' and 12,000 pounds.. so right at or just over the upper limit. Whereas their QuietTorque 20 48v goes to 45' and 22,000…See More
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Dave Freeman posted a discussion

Using Leaf or Tesla battery modules for a 48v EV system

Hello, I have just started doing some basic research about converting my 27 foot sailboat to electric. This is not something I plan to do right away, but our current engine is getting old in the tooth and I am interested in switching to electric when it reaches the end of its life, probably in the next 1 to 5 years.It has a 20 hp engine so I am thinking a 10Kw electric would be a good replacement with approximately a 200 amp hour 48 volt battery bank.In researching batteries I came across Tesla…See More
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David Brill posted a discussion

First major test

Following on from my last post, my partner and I were very keen to take a well overdue break from our business. Having just anti-fouled the yacht our destination was a resort island off the coast of far north Queensland. This trip was about 4 hours from our mooring. We knew it was going to be a little rough, but as we hadn't been out for so long we really didn't care too much about the conditions.We cast off at 7:00am and for the first couple of hours made great headway solely under electric…See More
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Fritz Raake posted a discussion

Solar Electric Pontoon Boat

We are currently involved in a electric/solar conversion project of a pontoon boat. Length 7.50 - 9.00 m (yet to be decided), Width 3.50 m The boat will be used to seat 16-24 people and cruise on a large lake in Africa. We estimate that the vessel will have a displacement of around 3 tonnes when fully loaded.We aim to convert the boat to use two electric outboard motors of 5 kW each with a battery bank for storage suitable for 6 hours of running time without AC grid charging.Any information…See More
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David Brill posted a discussion

Results after fresh anti-foul

Our yacht is a steel ketch weighing in at 26 ton (imperial). 3 years ago I replaced the 7L diesel with a 70kW electric motor and 235v LiFePo4 (160 Ah) batteries (72 bateries).Since that time my business has consumed most of my time and money. This week we slipped her and gave her a new antifoul paint job. The results were astounding.Coming back from the slip to the mooring (3 nm) she was pulling 5.9 k at about 950 rpm. The hull speed is 8 knots and max rpm is 1300. Drawing 149 amps from the…See More
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