Search found 10 matches

by polynimbus
Fri Jul 30, 2021 1:18 pm
Forum: Electric Power & Systems
Topic: books on wiring
Replies: 21
Views: 384

Re: books on wiring

"Boatowners Mechanical and Electrical Manual" by Nigel Calder is a wealth of good info (not just electrical), and pretty easy to read (he goes in to the weeds a bit sometimes but it's very informative). He has good examples and real world explanations of the decisions you will face, and presents the...
by polynimbus
Tue Jul 20, 2021 12:25 pm
Forum: New Members, Please Introduce Yourself
Topic: Hello from North Idaho!
Replies: 8
Views: 246

Re: Hello from North Idaho!

I'm building a TT out of aluminum down in Boise, I plan on using a trolling motor with the top cut off. They make variable speed controllers for those since they don't usually come with a PWM controller (they normally are just 4-wire with different resistors to get different speeds). I should be get...
by polynimbus
Mon Jul 19, 2021 8:08 am
Forum: Electric Power & Systems
Topic: Using A Security Battery For Testing
Replies: 6
Views: 773

Re: Using A Security Battery For Testing

Batteries have a maximum amperage draw rate rating, but it is hard to find that info sometimes. Just keep in mind those smaller batteries have much smaller terminals/interior wiring than the large batteries, so they can over temp or burn up wires relatively easily. They are made for electronics usua...
by polynimbus
Thu Apr 01, 2021 3:27 pm
Forum: Metal
Topic: True Grit Aluminum Build
Replies: 21
Views: 11816

Re: True Grit Aluminum Build

I know the purists here probably think aluminum builds are sacrilege, but I figured I would give an update in case anyone has insight or if it can provide insight to anyone going down this road in the future. Bulwarks are mostly complete, and most of the internal weld out is done. Using masonite for...
by polynimbus
Mon Nov 02, 2020 5:09 pm
Forum: Metal
Topic: True Grit Aluminum Build
Replies: 21
Views: 11816

Re: True Grit Aluminum Build

Got the last of the seams welded out (switched to TIG for the plate butt welds, I was worried about plate distortion but didn't get any measurable "pucker"), and performed the first of what I expect to be a few flips this weekend. The boat sure grew once I could see the full internal volume without ...
by polynimbus
Wed Oct 14, 2020 1:26 pm
Forum: Metal
Topic: True Grit Aluminum Build
Replies: 21
Views: 11816

Re: True Grit Aluminum Build

Would like to see your section illustration in color to confirm I understand what you're asking and proposing? Sorry, I went back to a 2D sketch to hopefully make it more clear. The green area is what I am proposing. The plans call for just a 4" carlin strip and open below. Let me know if that helps.
by polynimbus
Tue Oct 13, 2020 1:53 pm
Forum: Metal
Topic: True Grit Aluminum Build
Replies: 21
Views: 11816

Re: True Grit Aluminum Build

All, Thanks for the input, I'm glad I'm not the only one who has had these issues to solve! I built a gantry to help rotate the hull, I think it will be easier if I can rotate it a few times. I have the outside seams welded and the battens stitched enough to flip it. I want to do the majority of the...
by polynimbus
Thu Aug 27, 2020 10:11 am
Forum: New Members, Please Introduce Yourself
Topic: New True Grit project in Idaho
Replies: 0
Views: 1694

New True Grit project in Idaho

Hello all! New to the forum, but I am in the process of building Ken Hankinson's True Grit out of aluminum in Idaho. I have extended the length to 27' similar to Ray Macke's wonderful build, and will likely be using an inboard diesel for power. Hope to use her as a leisure cruise/light fishing craft...
by polynimbus
Thu Aug 27, 2020 8:03 am
Forum: Metal
Topic: True Grit Aluminum Build
Replies: 21
Views: 11816

Re: True Grit Aluminum Build

Thanks for the replies, that already helps a bunch. You guys do a tremendous service to amateurs, and I wouldn't be this far without reading all your helpful posts. I hadn't considered how much the motor stringers would help, the plans call for 1/4" plate with a full web to the frames, so that's alm...
by polynimbus
Tue Aug 25, 2020 4:51 pm
Forum: Metal
Topic: True Grit Aluminum Build
Replies: 21
Views: 11816

True Grit Aluminum Build

Hello all, longtime listener, first time caller. I am on the road to building the True Grit in aluminum, and have learned a lot from everyone here (especially Kevin's detailed posts). I have been able to answer most of my questions with research here and from traditional sources, but am coming up wi...

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