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The owner of a 24-foot cruiser takes us through his selection of an electric trolling motor to replace a Mercury gasoline outboard. Photos and some performance comparisons.
[American Mariner Owners, USA]
A detailed introduction to electric-diesel propulsion in general and Solomon Technologies in particular, explaining the pros and cons, how it works, why it is more efficient, and how it can generate electricity from the propeller when sailing.
[Cruising World, 7 May 2005]
How the various types of fuel cell and electric propulsion units work, with descriptions of the Solomon Technologies electric wheel and the silent generator from Victron Energy Systems. 4 pages with photos, diagrams and a list of fuel cell vendors
[Cruising World, March 2003]
UK-based association of electric propulsion users and manufacturers. A good place to look for technical information, advice, and product listings. Their site contains articles and directories for anyone researching electric power for boats.
[Electric Boat Association, Berkshire, UK]
Steve Cooper chucked his Rawson 30′s diesel engine and replaced it with an electric propulsion system. He manages without a generator, so range and speed are limited, but motoring is very smooth and quiet.
[Solomon Technologies, Inc., Tarpon Springs, FL, USA]
Written by the first man to cross the English Channel on a solar-powered boat, this report covers various launches and small boats in Europe using photovoltaic cells to power electric motors. Links to about a dozen reference sites.
[www.umwelteinsatz.ch, Switzerland]
A look at the likelihood and conditions under which hydrogen-driven fuel cells will work on any boat, let alone your boat.
[BoatUS, Alexandria, VA, USA]
One man′s FAQ sheet on the electric drive installation in his Columbia 36, made from off-the-shelf golf cart parts, using his existing gearbox, shaft and prop.
[Yahoo Groups, USA]
This company is looking for boat owners who want to participate in demonstration programs, such as the X/V-1 systems which uses a watermaker, electrolysis unit, hydrogen storage, hydrogen-consuming stack, and electric motor.
[Haveblue LLC, Ojai, CA, USA]
Here′s a good place to learn about the various types of fuel cell and how they work. General background, not marine-specific.
[FuelCellWorks, Kirkland, QUE, Canada]
has to push pistons, turn a crankshaft, turn a camshaft, [An engine has to ] open valves, pump water, pump oil, turn an alternator, and submit to reduction . . . By the time that′s done, the engine′s efficiency is somewhere below 25 percent.
Tim Murphy
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