Walter Graupner
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  • West Fork, AR
  • United States
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Walter Graupner's Discussions

Compelling reason to restore my antique diesel
4 Replies

 Ok, before I'm kicked out of the forum, look at this Utube.http://www.youtube.com/watch?v=21rJ30Y-sZg I don't have the same engine but my…Continue

Started this discussion. Last reply by Walter Graupner May 21, 2012.

electric motor selection
12 Replies

Greetings all,Maybe I didn't search the right places but got no information when I did.I've decided to go electric. My boat is a 1971 Nantucket Clipper, 7.5 ton yawl. She has a 3/4 full keel cutaway…Continue

Tags: planning, motors, simplicity, controller, dependability

Started this discussion. Last reply by Tom Hruby Apr 13, 2012.

 

Walter Graupner's Page

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Walter Graupner posted a discussion

Compelling reason to restore my antique diesel

 Ok, before I'm kicked out of the forum, look at this Utube.http://www.youtube.com/watch?v=21rJ30Y-sZg I don't have the same engine but my diesel is an old lifeboat type engine that has a similar characteristic. Another hobby I enjoy is playing music and this could be very handy. Any ideas on how I could get this out of an electric motor? WalterSee More
May 11, 2012
Walter Graupner posted a discussion

electric motor selection

Greetings all,Maybe I didn't search the right places but got no information when I did.I've decided to go electric. My boat is a 1971 Nantucket Clipper, 7.5 ton yawl. She has a 3/4 full keel cutaway aft.I would like to find the best motor to fit my ideal auxilary power source. As a sailor I want something that will go when it's needed. Dependability. My sails will always be the primary but I just ran aground on my friends boat and the removal process involved his powerful diesel in reverse and…See More
Apr 10, 2012
Walter Graupner posted a status
"Got loads of questions about electric power, regenerative braking, chargers of all kinds and sailing diesel free."
Apr 10, 2012
Walter Graupner is now a member of Electric Seas
Apr 5, 2012

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Rebuilding an old sailboat with intentions of using electrical power.

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At 12:33pm on April 9, 2012, Greg Martin said…

Hi Walter, so what kind of sailboat are you rebuilding? I restored/ renewed my 1967 Bristol 32 with an electric propulsion system and I can say it was the best thing I ever did. Please tell us about your project!

 

Anyway, I just wanted to let you know that we have forum topic under general discussions that we're using as an archive for previous messages to all members, concerning info about this site. Here's the topic:

http://www.electricseas.org/forum/topics/archive-of-messages-to-all

We'll periodically send a message with updates on what's going on. This site is always evolving, so please feel free to shape it into whatever you want.

Keep it charged!

-Greg

 
 
 

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Roger Boyce is now a member of Electric Seas
yesterday
Leonard Holmberg posted a video

Green Machine Solar Tender

This video is about Green Machine Solar Tender. Based on Freedom Electric's X10 Hull. Special thanks to Freedom Electric, Pelican Loft and Lehr for making th...
Apr 25
Leonard Holmberg updated their profile
Apr 25
Leonard Holmberg posted photos
Apr 25
Profile IconLeonard Holmberg, Johnny and Cal Drake joined Electric Seas
Apr 24
George McLaughlin is now a member of Electric Seas
Apr 19
Jay Bliss joined Greg Martin's group
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Electric Yacht User Group

User group for Electric Yacht
Apr 11
Scott Campbell posted photos
Apr 11
doug deleone posted a status
"can anyone recommend a robust mid to higher end on-board battery charger for me i have 96v sys or 16 6 volt golf cart bats."
Apr 8
Dave Parker added a discussion to the group Oceanvolt Electric Saildrive Group
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Oceanvolt references

I am looking at buying 2 SD15 KW saildrives, 8 LiFePO4 batteries, 2 14KW DC Diesel Gensets and a solar charger/controller from Oceanvolt. They provided several references of people who had their systems in catamarans so I contacted all of them. Every one had a good story to tell! Sure there were a few problems, but the owners all said that Oceanvolt support was impressive. Does anyone in this group have a history with Oceanvolt?See More
Apr 8
Dave Parker joined Sally M. Reuther's group
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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
Apr 8
Mark Pixley is now a member of Electric Seas
Apr 8
PacificGreen posted a discussion

All Ahead Full

So today we put both the throttles down on the Ray controllers and were calmly pushing 100 amps a side on the motors and moving along at 6.64 knots according to my OpenCpn. Here is the track2.gpx for google earth or back to opencpn if you like to compare numbers otherwise the AIS track here >>…See More
Apr 7
Andreas Apostolopoulos is now a member of Electric Seas
Apr 7
Jim Young is now a member of Electric Seas
Apr 1
PacificGreen posted a discussion

Sea Trials Continued

Solar sailing down the Fraser almost making power.  Coming back upstream was interesting as we had to make prop for 50 amps a side so 100amps minus solar so 85amp deficit more or less to obtain our 7km/h upstream against probably 5 knots of current.https://youtu.be/rEA-u3lZqVg…See More
Apr 1
Daniel P Kalinowski posted a discussion

UK Sails Flexible Solar Panels Mounted on Sail

The December issue of Sail mentioned Solarcloth by UK Sails.  The solar panels are integrated into the sail material.  Has anyone had any experience with this new technology?Dan K See More
Mar 31
Skip Barbour posted a discussion

New Battery technology

I  keep  seeing announcements for new battery technology, most  recently  from   Renogy Solar  with  the Lycan Powerbox, but alas none of these  announcements  come with technical or  price information. Does anyone on here know of any  real break through battery technology  that is truly on  the market? See More
Mar 30
Dag Goering is now a member of Electric Seas
Mar 30
doug deleone posted a status
"I am just about to start the re powering with twin 3 phase ac45 induction motors and matching curtis controllers any thoughts"
Mar 29

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