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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David Brill posted a discussion

First test run

Had the first test run of our 52' ketch under electric power. Although it was only a short run around the marina, all systems performed extremely well. Much more control with lower revs possible. Minimum revs with the old diesel were 210 at the prop which equated to 3 knots. Now I can get the prop down to 50rpm. More control in reverse with the slower prop revs also.Looking forward to installing a generator which will allow us to venture out for a few days and give her a real test run.See More
19 hours ago
Mark Frasca added a discussion to the group SolidNav User Group
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8 flash error code

My 2008 SolidNav Explorer has been cutting back to 1/2 power from time to time, for over a year. If I am gojng anywhere I do not use that much power anyway so the issue has not been a problem but I do want to fix it. Today I checked for an error code and I am getting 8 flashes on my Sevcon MiliPac when it cuts back. The code is an over heat indication and I know it isn't overheating because it can happen seconds after throttling up. Any thoughts out there?thanks, MarkSee More
21 hours ago
Serge Plante is now a member of Electric Seas
Aug 28
D. Carl HArris updated their profile
Aug 26
Brad O'Connell posted a discussion

Significant voltage drop

Hi everyone,I have an electric yacht motor, driven by 8 Trojan T105 batteries, wired in series to produce 48Vdc. I have owned the system and the batteries for  7 years. I have noticed this year that I am getting really significant voltage drops while underway.I can see the motor controller display going from 48 down to 24 Vdc, all within an hour, under what I consider to be normal cruising conditions and amp draw.I guess there may be two problems.1) A resistance problem- maybe thermally induced…See More
Aug 26
D. Carl HArris posted a discussion

Introduction

Hello,I just joined the group and am looking forward to learning about electric conversions.My wife, Myra, and I have sailed for the past 30 years and currently own a Morgan OI 28.  Spirit still has the original Volvo MD-7A, but the next time the engine requires more than oil, diesel or filters, the electric conversion will begin.  For now I will keep quiet and read all the info on the forums. Glad to be here,CarlSee More
Aug 22
D. Carl HArris is now a member of Electric Seas
Aug 22
Capt. Mike posted a discussion

Harbor test 2014

Just posted some data on the annual harbor test I do with my Thoosa 9000 EP system. Including comparison to the 2013 data:http://biankablog.blogspot.com/2014/08/electric-propulsion-harbor-test-2014.htmlCapt. Mikehttp://biankablog.blogspot.comSee More
Aug 18
Doug Greenwald posted a discussion

Introduction

Hello,I'm Doug and I just discovered this forum and its wealth of info. I've been active in the EV car world for 4 years now, and have continually watched the marine industry make its inroads with electric propulsion over the past several years. I think I'm ready to make the commitment to electric for my Nonsuch 30 "Such is Life"  currently moored in Anacortes, Wa... but soon to relocate in Everett Wa.Having her closer to home will allow this type of major retrofit to happen. The goal is to…See More
Aug 16
Doug Greenwald is now a member of Electric Seas
Aug 15
William Hayley is now a member of Electric Seas
Aug 10
Shannon Ritchie is now a member of Electric Seas
Aug 7
Robert Bracey posted photos
Jul 30
Robert Bracey joined Greg Martin's group
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Duffy Boats

User group for Duffy Boats.See More
Jul 30
Robert Bracey is now a member of Electric Seas
Jul 30
JAMES SCHOFIELD is now a member of Electric Seas
Jul 29
Lauri Strengell joined Greg Martin's group
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Duffy Boats

User group for Duffy Boats.See More
Jul 21
Lauri Strengell is now a member of Electric Seas
Jul 21
Arthur Lifshey is now a member of Electric Seas
Jul 15
Lisa Novy is now a member of Electric Seas
Jul 8

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