Asmo Marine User Group
User group for Clean eMarine and Thoosa electric propulsion systems (formerly Asmo Marine)See More
A Resource For The Electric Boating Community
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Charlie Johnson
- Saint Petersburg, FL
- United States
- Electric Boating News and Insight
- Discussions (2)
- Events
- Groups (1)
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Charlie Johnson's Page
Latest Activity
Profile
- Company Details
- JTB Marine is a small marine engineering and repair company that specializes in the troubleshooting and repair of marine electrical systems as well as their design and installation aboard private and commercial vessels.
We have experience with all battery chemistries including lithium iron phosphate (LFP) and have installed dozens of inverter/chargers, wind generators and solar panels.
We perform electrical surveys, take part in boat fire and flooding insurance forensics and are marine corrosion experts.
All of our work is performed in accordance with the American Boat and Yacht Council (ABYC) Standards and the Code of Federal Regulations, when applicable.
- Website
- http://www.jtbmarine.com
- Personal Profile
- Avid cyclist, early adapting marine engineer, ABYC Master Technician, Ham radio operator, Advanced SCUBA diver, retired Naval Officer, and all around good guy!
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Latest Activity
Pat Neal posted a discussionBelt drive
Ok kiddsI have the system put together and still have an issue. I have a 16*14 3blade prop and a 0913 motor sevcon gen 4 & 8 J305s (DIY kit from Thunderstruk EV realy good people) The boat is a 77 Morgan 33O/I 14500lb 27'l wl 11'8" beam 3'9' draft full keel@ 48v I started with 2:1 reduction and have changed to 3:1 useing the 1in L seires 3/8 pitch belt@ about 125amps the belt goes up in smoke. It will run allday @ 30-50 amps I have been checking out other members stats and every one…See More
Max Sail posted a discussionWhich hull shape is better for regen?
Which hull do you think would make the best electric conversion, in terms or regen, battery location, or any other observations you might have? Looks like the Cherokee bilges might be a bit shallow for batteries?Thanks!See More
David Warr posted a status"The boat is in Greece and the motor is in UK - somehow - one day they will meet..."
Max Sail posted a discussionStarter advice for Max's New Electro Project
I'm on the hunt for a cheap old cruising sailboat to electrify for Lake Michigan and future long range cruising. I'm currently considering a Cal 30-1, Chris Craft Cherokee 32, and various Cheoy Lee Offshore models from 30 to 40 ft.Before I buy a boat, I figured it would be wise to get some input on what to look for or avoid in a good conversion candidate. Any general input appreciated. Most boats I'm looking at have an old atomic 4.I'm considering a 10kw electric yacht system, although I keep…See More
Nate Jones posted a videoLaunching "Maine's Quietest Lobsterboat."
The Friendship Sloop Sarah Mead hits the water with her brand new electric propulsion system.
Xavi Prats posted a discussionNew website
DEar collegues,After some time without changes on the net resources, due that we are focused on the product development and investigation, we remake our webseite at INNOVANAUTIC, we invite all of you to visit the web page www.innovanautic.com and talk about it and about your impressions.Best regards,See More
Boyd Jordan added a discussion to the group SolidNav User Group
SolidNav UpDate and GEN4 Converstion
I bought David Carrolls Catalina 30 with the SolidNav Explorer in it that didn't work. It was giving the 3 blinks code on the LED flash and sometimes 4 blinks on the LED flash.I called Thunder Struck Motors who are extremely smart and helpful people and talked to them about what would be the best route to take to fix the system. After exploring all options. I decided to buy a brand new GEN4 Controller, the wiring harness, and the new style better throttle control and have it all programmed…See More
Capt. Mike posted a discussionHelm Instrumentation Project
Recently I built a helm instrumentation panel so I could keep and eye on battery voltages and current draw on the propulsion bank without leaving the helm while underway. It worked out pretty good though I still have to mount it permanently. The links to the process I went through are here:http://biankablog.blogspot.com/2013/02/instrumentation-project-part-one-plan-a.html…See More
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Hi Charlie, I just sent you a more detailed message to your inbox here, which should be sent to your regular email as well.
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