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#1
posted to rec.boats.cruising
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sailboat electric motor
I lost my bookmarks in an HD crash and can't recall the name of the
company. These guys are/were producing a serious electric aux. motor that bolted to the underside of the hull just aft of a fin keel. Came in both single and dual screw configs...Anyone seen/googled this recently? I'm not getting any hits... |
#2
posted to rec.boats.cruising
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sailboat electric motor
On Tue, 15 Apr 2008 07:00:19 -0500, mister b wrote:
I lost my bookmarks in an HD crash and can't recall the name of the company. These guys are/were producing a serious electric aux. motor that bolted to the underside of the hull just aft of a fin keel. Came in both single and dual screw configs...Anyone seen/googled this recently? I'm not getting any hits... http://www.re-e-power.com -- Woodsy, Off the Grid, Off the Road, Off my Rocker... |
#3
posted to rec.boats.cruising
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sailboat electric motor
On Tue, 15 Apr 2008 19:30:46 -0400, Woodsy wrote:
http://www.re-e-power.com that's the one...thank you very much |
#4
posted to rec.boats.cruising
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sailboat electric motor
On Wed, 16 Apr 2008 09:19:26 -0400, salty wrote:
http://www.re-e-power.com They don't seem eager to reveal actual power or energy consumption. I wonder why? The claim 300 amps peak, 170 amps continuous, and 30-50 amps at "cruise speed". All meaningless because they also give a wide range of operating voltages and don't say at what voltage all the other ratings are measured. yes, yes and yes...but it does look like a promising technology and one that I'm actively considering...unless I have to stick a metric ton of batteries under the cabin sole |
#5
posted to rec.boats.cruising
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sailboat electric motor
On Wed, 16 Apr 2008 08:43:45 -0500, mister b wrote:
On Wed, 16 Apr 2008 09:19:26 -0400, salty wrote: http://www.re-e-power.com They don't seem eager to reveal actual power or energy consumption. I wonder why? The claim 300 amps peak, 170 amps continuous, and 30-50 amps at "cruise speed". All meaningless because they also give a wide range of operating voltages and don't say at what voltage all the other ratings are measured. yes, yes and yes...but it does look like a promising technology and one that I'm actively considering...unless I have to stick a metric ton of batteries under the cabin sole To draw down a steady 50 amps for any length of time you need a battery bank of approximately 1,000 amp hours. To do that with 12 volts would generate less than 1 horsepower, so I'm guessing 48 volts minimum. That's about 40 golf cart batteries at 60 pounds each plus a whole lot of interconnects. That works out to over 2,400 lbs (1,100 kg), at a cost of over $2,500 USD. |
#6
posted to rec.boats.cruising
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sailboat electric motor
wrote in message
... On Wed, 16 Apr 2008 08:43:45 -0500, mister b wrote: On Wed, 16 Apr 2008 09:19:26 -0400, salty wrote: http://www.re-e-power.com They don't seem eager to reveal actual power or energy consumption. I wonder why? The claim 300 amps peak, 170 amps continuous, and 30-50 amps at "cruise speed". All meaningless because they also give a wide range of operating voltages and don't say at what voltage all the other ratings are measured. yes, yes and yes...but it does look like a promising technology and one that I'm actively considering...unless I have to stick a metric ton of batteries under the cabin sole Aye, there's the rub. I can see a setup such as the Glacier Bay diesel/electric having some advantages over straight diesel propulsion, but running just off of batteries isn't going to be very practical for anything except short jaunts that involve returning to a rather hefty land based charging system every few hours. Great for local tour boats. Probably not so much for cruising situations. According to the website, the cruise time varies between 2 and 10 hours. It also said something about regeneration, but I can't seem to find it again. That would extend the cruise time, perhaps indefinitely (sort of) depending on efficiency of regeneration. -- "j" ganz @@ www.sailnow.com |
#7
posted to rec.boats.cruising
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sailboat electric motor
On Tue, 15 Apr 2008 09:04:04 -0400, salty wrote:
Is that the one from Glacier Bay? http://www.ossapowerlite.com/ not quite...I guess serious is a relative term. This model was shaped like the motor section of any submersible electric motor, but larger - perhaps 2-2.5ft overall. The thrust ratings on these would be appropriate for a smaller boat like mine (HR28) The one I was looking at had a mount with two large bolts that would go up through the hull into backing plates...I'm still hunting but not finding... |
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