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Everything posted by Breamerly

  1. Agreed the owners should get it, too. Have to potentially disagree about the boat/standards for safety, though. Safety without a watch in a fire/rapid-flood situation would require timing margins that I am not sure would be possible on a boat like that. Even if you revised standards to require an aviation-type completely redundant no-fail alarm system - and swallow the imagination pill that corners would never be cut on it - I'm still not sure that would be fast enough for the time margins available in marine emergencies. The physically constrained reality of ship quarters means
  2. Jesus christ that thing was a fucking fuck. The buck has to stop somewhere, though.
  3. Definitely felt this way myself the first couple times it happened. another place I have found it is at the north entrance to the channel from Stuart down to Friday harbor, and along the west coast of orcas. Tide change was an hour and a half off predicted last time I was going north from Jones. One thing you might try, if you don't already, is comparing what's in the atlas to the corrections listed in one of the better American tide books, which will typically have a list of time and current corrections for various spots including all over the islands. For fine scale predictions I f
  4. I've found the atlas to be off by as much as 2-2.5 hours in odd cases. I assume three things explain it: Broadly, it's a guide primarily intended to show the large scale movement of the currents. More specifically, the CHS predictions are based on modeling of only three magnitudes of tide - 3, 1.8, and 0.6 meters, if I recall. So tides that fall significantly between those ranges will have different characteristics, someone's by a significant margin. again, I assume this to be even more true for fine-grain predictions like a countercurrent along an island shore. Last, they do no
  5. Thanks for posting this. Are you aware of a technical difference between EPIRB and PLB? The article references the PLB issue, but curious if an EPIRB would have performed better in that situation. Very interested in any into you may have on that.
  6. Not an engineer but, this. Getting to be the guy who test drives the Ferraris has a lot to do with having things break your way fairly early. And after your first break, it tends to come a little easier. Conversely, if you miss getting an early break, it tends to be much, much harder to catch one later. So if you are thinking about something, try it now, while you're young. Your Opportunity costs are the lowest they'll ever be, and the potential for long-term compounded gain (catching another break, then another) will never be better. If it doesn't work out, you can always do somethi
  7. Ah yes. Just googled metacentric height* and it appears that, in laymen's terms (the only ones I understand), "masts help alot." *Good Wikipedia page
  8. With less weight aloft wouldn't it roll *less*? (I have no idea what I'm talking about)
  9. You are probably correct about the chips. However, with an electronic device in a marine environment ingress protection, corrosion resistance, and self-test ability are as important (if not more) than the reliability of the chipset, which I believe is rarely a failure point in simple electronics. Anecdata isn't data. And I'm not saying PLB's "don't work". I'm saying they appear to be built according to different standards, and it's opaque exactly how their standards differ. And I'm saying that that makes me hesitant to trust them to the same degree as EPIRBs. I'm not sayin
  10. This! This is what I was looking for! More please.
  11. I mean, cool. I'm not arguing with you. Do you happen to know anything about the technical standards to which the two devices are built and/or tested, and how they compare?
  12. I should add that this is a definite mark in their favor, but since I'm at this point hearing it second-hand (in a forum no less), without any technical explanation to back it up, it still goes under 'Surmise' for me. I'd love to hear more about it though.
  13. I was using hypothetical numbers - I don't actually know what the standards are for epirbs vs plbs, just that one was originally an aviation product (typically designed with double/triple redundancy, more stringent QC, and a higher Factor of Safety) while the other was originally a consumer product. Both are federally regulated, but they have different regulations and technical standards - RTCM 11000.2 vs 11010.3, I guess. Again, I don't know what the difference is between those regs (they don't appear publicly available for free) but clearly there is some difference. If any of the a
  14. I've gotten the old 'papers, please!' as far up as ukie
  15. Yeah it's a funny combination of a national government trying to enforce a prohibition that is arguably stupid and overbroad - and an individual responding to that in a way that is arguably arrogant and self-absorbed. Sometimes you encounter this with cruisers - this conflation of the individual right to move around on the Earth with some kind of important work or mission, which of course when viewed from the outside just translates to a kind of absurd self-importance: "STAND CLEAR! It is IMPERATIVE that I float my yacht into this harbor! I'm like Shackleton, don't you see?! I AM ON
  16. In all seriousness though, I am learning a lot from this thread. Very interesting to hear about waterline, displacement, fore tri, etc - all stuff I wouldn't ever know standing outside the castle staring in Peasant 1: 'nice castle, that' Peasant 2: 'probably bloody cold though, and look - no windows!' The king's probably jealous of us, or at least he should be' King, fondling supermodel wife on bearskin in front of fire made of $100 bills: 'yes, cold, and so jealous'
  17. Of course the alberg owner sailed on and off lol
  18. A lot of carbon pollution over time vs a lot of carbon pollution all at once so *shrug*
  19. I mean what does "works" mean - we're clearly talking about a failure in, say, six hundredths of a percent of use cases versus two. I'd rather have the latter for my life safety devices. Like you can build clinbing anchors out of galvanized hardware, and the chance of total failure is still very low. But with stainless it's extremely low. It's more better. So we use stainless, yeah?
  20. These seem cool but I've heard are engineered to personal electronics standards/margins vs aerospace ones. For that reason I've always figured I wouldn't use except as an add-on to a 'real' epirb.
  21. I've used the rent a beacon service. Really good, and a great thing to have when on the outside of Vancouver island - and totally unnecessary on the inside.
  22. Adding to above: I have a 27, and sympathize with wanting to upaize. The spirit of my earlier, though, was that I think a lot of folks who've learned on the zillions of cheap ~27ish boats out there underestimate the increase in complication and difficulty of systems on bigger boats. For instance, I have self-tailers, but frankly if I needed to I could almost handle the lines by hand. But even just going from 27 to 30, sail area increases by almost a third, and nearly doubles when you go to 35. And of course rig forces increase exponentially with area... So everything gets harder
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