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Everything posted by Breamerly

  1. christ it's amazing these guys have been in business so long. Called to ask if they could order parts to fit an extrusion not listed on their site. Lady put me on hold mid-sentenc, came back 3 or 4 minutes later to bark "I already told you the answer to that" and then hung up on me while I was apologizing for the confusion and trying to ask a follow-up. I will say that when I emailed my question I did get a knowledgeable, useful response pretty quickly - but after that phone call I'll be doing my utmost to avoid any further contact with them in the future.
  2. major undertaking, should only be started after signing several liability waivers in a row and getting the fire department on standby
  3. "Down periscope, Mr Wayne" Not the first beauty to end up adrift after losing themselves flexing for the 'gram
  4. I've heard of foam core materials that accept a curve well (for instance for recoring curved deck sections). Anyone have any experience with any of them? Here's one I found: https://www.jamestowndistributors.com/product/product-detail/1586
  5. Yes. They always take care. They sure do, and it protects all of us.
  6. just my opinion but this is too much theory. You can sail small boats all summer without ever knowing - or needing to know - where 'north' is, or how weather works. With sailing student there is already a glut of theory/abstract stuff they have to absorb at the front end - why glom even more on
  7. Even sailing with my significant other, who has been sailing with me of and on for 5+ years, I notice she has to 'watch' the wind in a way I just don't. I feel where the wind is coming from, and by looking at the sails I can see where it is in relation to the (and vice-versa). She has that sometimes - but other times I can see she still has to stop, look at where it's coming from, then orient that to the centerline of the boat and the set of the sails. Still remember sailing as a teenager with a crusty old wooden boat fella who mocked me for looking at the anemometer when the sails luffed
  8. +1 Continually amazed at how unconscious this is for folks who sail - and how invisible it is to people who don't.
  9. That's a very straightforward formula that I hadn't seen before, as is WPC. Thank you. If I'm understanding correctly, what's most relevant is the heeling moment formula, which is a component of both - Hm = sail area * Cos^2(heel angle) * Heeling arm * Wind pressure. @bgytr is it correct to think I could get a sense of the effect of the changes by comparing the moment generated by the same sail area and windspeed with two different Heeling arm values? Or in 20 knots of wind, at 20 degrees of heel, the Heeling moment with my current heeling arm and sail area (20ft, 158ft2) is abo
  10. That's a great idea. So great, in fact, that I talked to the sailmaker about it yesterday. I think that will be a next year spend, though.
  11. Sorry if I sound grumpy. Asking for advice on forums is damned-if-you-do/damned-if-you-don't. If you provide lots of specifics, people start answering questions you didn't ask, but if you ask a bare-bones question, people say, 'can't answer the question without more specifics.' And if you really provide a thorough explanation of the details and your whole thought process, you end up with a novel that no one wants to read! Everything I've gathered so far is that lowering the CoE by a foot (about 5%) would mean it would take 3-4% higher windspeed to force the boat into the same degree of he
  12. Right. I get that. As I wrote up above, what I'm interested in is the potential utility of making my boom height adjustable, as a way to make the boat a bit more adaptable to heavy weather by giving myself the ability to lower the CE, along with typical heavy air strategies like reefing, active sheeting, and pinching off. To that end I'm trying to understand how much it would change the heeling force, and by extension the windspeed threshold at which the boat overpowers when going to windward. Sorry, I posted a lot more specifics in my original on fix-it anarchy, and left this thread a bi
  13. Nothing, in that scenario. In my case, however, the boom is set relatively high off the deck, with a main cut to accommodate that. By extending the track downward a bit, I'd have the option to lower the boom a little more than foot (it's on a car), and hoist from that lower position. Which would give me the same sail, acting on a shorter lever. Thus my question: How much of a difference would that actually make (in terms of heeling force)?
  14. I didn't really take it as a serious idea I guess. I didn't ask originally about center of inertia - I asked about the effect of reducing the boom height. I asked that specifically because I was contemplating adding adjustability, not making a permanent change (one that would require redoing all my standing rigging and having the genny recut). As always on these posts, there's an element of balancing between enough context and too much. I was trying to keep it simple. Apologies if that added confusion.
  15. Whoa whoa whoa there mister, this is the internet, and I'm a stranger - exactly how else am I supposed to react to even the most miniscule ribbing other than by getting insanely butthurt and starting a flame war? lol. It's a 1969 Santana 27. I haven't measured yet, but the boom looks to be about 7.5' off the cockpit sole, and about 2.5' (maybe a touch more) off the deck.
  16. Goddamn. This is some fine advice, and I'm only 35.
  17. Alas. The sail track stops where it is now. To slide it down further I'd have to extend the track (and I guess add a stoppered car to carry it/rest it on). Ultimately what I was wondering was whether it was worth the work to make it adjustable as a heavy weather item - have the ability to lower the CE a bit as another arrow in the quiver along with reefing, active sheeting, pinching off, etc. Boom has a kicker, so I'd have to also set a second, lower deal for that, to allow moving it up/down. For a couple of knots difference in the overpower-threshold windspeed, it seems like mo
  18. I have definitely thought about the similarity of it to reefing. But I'm not sure it's comparable, given how much a reef *reduces* the sail area. I don't know how much to ascribe the heel reduction to the lowered center of effort versus the reduced sail area. And yeah, my thinking at the beginning was that levers often seem to involve an exponential relationship type deal, so maybe a little change would make a big difference. Sounds like, though, a little change would just make a little difference.
  19. The point is that I'm curious. That and I happen to have the boom and gooseneck fitting off the mast, which occasioned me thinking about how much extra room there is between the boom and the deck - far more than is necessary to accommodate standing headroom in the cockpit - and wondering how much that extra room adds to the heeling force on the rig. (I presume the trade off is achieving just a touch more 'reach' on light-air days.) I say all this of, of course, in good faith, on the assumption that you aren't just asking what the point is so that you can heap disdain on it from 10,00
  20. I say this in all politeness: You know that sails slide - like, slide up and down - right?
  21. Interesting. I see you're right. Thanks for the insight.
  22. I think this would just be righting moment, wouldn't it?
  23. Great calculator, but something is weird about it. Its listed value for sail heel (which it defines as heeling force exerted by the sails on the mast) does not change when you modify the boom height, even when you use crazy numbers. I think it might have a bit of wonk.
  24. interesting/excellent. Thanks.
  25. Indeed. Got it. Thank you. That lines up with my even rougher scratchings - something like ~5% windspeed change, or 10% in the most wildly optimistic reading. Not huge.
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