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George Dewey

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About George Dewey

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    Super Anarchist

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    Charleston, SC
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    Loose women

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  1. Tom, out of curiosity, what percentage does the cost of materials contribute to the cost of a sail? I would think between the design and R&D costs, the sales commissions, the labor and the material landing costs (shipping), the actual sail cloth would be a relatively small contributor to the overall cost of that nifty new main...
  2. Oh, this thread has been going on a while, I forgot that was his intended use. Still, I would go with the 20A charger over the 5A. I wonder how long a 100Ahr battery will run a trolling motor? How much would a motor for a boat like this draw?
  3. 100% agree the built in antenna is useless. The feedline was a custom made (by the vendor) LMR-400UF (ultra flexible), I think it's about 22 feet long. If the Go! didn't consistently report strong signal I would agree with you.
  4. And that's Admiral Dewey, if you please ;-) (JK!) https://en.wikipedia.org/wiki/George_Dewey
  5. The Go! reported strong signal almost continuously and a few knowledgeable people told me the rails would not be an issue. I wanted to reduce the chance something would snag on it.
  6. Also you can check out this webinar (read, commercial) from Predict Wind on using the Go with their stuff. It would be very good if it worked reliably. They ran this yesterday evening.
  7. With a 100 Ahr LFP bank, the battery will be equally "happy" with a 5A or 20A charger, but I would sure go with the 20A. I'm currently using an IP67-17A from Victron.
  8. I think the slow data rate was an issue. Still, even getting just a 3 kb route and nothing else didn't work. I didn't spend a lot of time trying to diagnose it, we were offshore and the weather was not great (meaning, it didn't work when I needed it most), so we were busy. Still, it should have worked at least to get small routes from PW. If I had the money I would look at a better system.
  9. I had, and still have, the Predict Wind Professional package. But that is not relevant, it was not Predict Wind's fault. Yes the antenna was properly mounted, and the feedline was actually larger, lower loss, than is typically recommended, and no longer than needed. For most of the voyage the Go reported full strength signal.
  10. Yeah thats an Iridium Go. It has a very slow data rate, like 2,400 baud, like the dial up modems from decades ago. I tried to use it with Predict Wind offshore, which does not even try to get gribs, just routes created in their cloud. I tried pulling gribs, and several times we tried voice. None of this worked. Text messages worked very well, but that was it. I was very disappointed.
  11. Yup, good design. I'm using FETs for the cutoff, because I don't want the weight or current draw of a mechanical contactor. But if someone can spare that power and weight then it's the best way to go.
  12. I experimented with a few different solid state relays (SSRs) and they tended to fail, and when the did, they failed closed. Plus there was a slight voltage drop. I also decided not to use them.
  13. Okay but what Iridium station equipment? Iridium is a good system, my problems probably had to do with me using a Go.
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