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Seaworthiness of Mac26
"rhys" wrote in message
... I'm not sure why you have a problem with "flat sliding doors" since I've never heard of a failure of one. I just find large openings and flat surfaces on small vessels of any type inappropriate from a windage viewpoint and POTENTIALLY from a structural viewpoint. I don't like large companionways and tons of fixed ports in the coachhouse for the same reason. It's not particularly scientific, but there's a reason submarines and shuttlecraft don't have screen doors, either. G Or are you defining "seaworthiness" as something that "looks proper" as opposed to something that has been proven safe with a perfect safety record? Perfect? Stats, please. Plenty of catamarans have gone missing in the ocean... Really? I've heard of a couple in the last 20 years ... can you point to any? This is an odd issue, because people often claim cats flip, sink, or go missing, but then are never able to provide examples. There are, of course, a few, but very few compared to monohulls. we had one kill two sailors in Lake Erie three years ago near here in a line squall when it flipped and flooded. Yes, it was a racing boat carrying full sail with spinnaker in the middle of the night, only one man was on deck at the time. There is certainly no question that racing cats and tris flip. Of course, racing monos also flip and often sink. If a catamaran went down in the ocean, it would be hard to figure WHAT killed it, but a large glass door in the cockpit can reasonably be assumed will let in more following seas IF it fails. Why? Most catamarams keep a dry cockpit in following seas. And in major storms the preferred strategy is to lie to a sea anchor. And engineering tells us everything fails, eventually. Me, I would rather it was a couple of dropboards YMMV. Some cats are more conservatively designed in this respect; others go for the "sunroom effect". Are you saying a Hunter is a safe boat because it has dropboards? You could make the hypothetical case that sliding doors might not be safe in an "ultimate storm" but certainly the majority of boats built have similar issues. So are you simply saying that most cats are built as coastal cruisers, just like most monohulls are? Actually, I consider the door to be a major safety feature since you don't have to climb down a ladder to "go below." Different strokes, I guess. I have plenty of handholds so I essentially "drop" the four feet or so into the cabin. Racing cats, of course, look like '50s fighter jets, with "blister" windscreens and a minimum of deck clutter. Modern cruising cats don't have a problem with seas breaking in the cockpit because the sterns are quite bouyant and lift easily. In many cats the door is almost amidships, so its rather unlikely to be tested even in the worst conditions. And the cockpit drains are usually 3 inch scuppers that drain directly below. I know that traditionally, large comfortable cockpits are not considered the safest for long passages, but they really aren't that bad on a cat. Well, as I've said, while my experience with them is limited, I've seen a few that seemed a bit more alert, so to speak, to the possibly of tons of green water landing in an inconvenient spot. Yes, there are certainly a number of cats designed specifically with ocean passages in mind, just as there are a number of monohulls so designed. At the other end of the spectrum there are cats suited only for coastal waters, although they have made passages as "stunts," just like you hear of J30's making passages. One thing to remember about larger cruising cats is that they make a huge number of passages. Almost every cat the Caribbean (a major part of the market) gets there on its own bottom, usually from France or South Africa. Even my PDQ, clearly a coastal design, has 30 or 40 Bermuda passages (the major charter fleet uses that route), plus a least one Atlantic crossing. South Africa builds some apparently incredibly tough blue-water cats (they'd have to, given the conditions there), and while I'd personally have to learn to sail 'em, I'd let the brother buy one. You'd figure it out real quick. So I understand. Perhaps I should start with a tri...there are a few F28s locally that are supposed to do 20 kts. Now that might take a bit of learning. Last year I was waiting out some weather in Plymouth, MA when a new F31 came in. He said they had just been doing about 17 knots reaching down from Boston. I was a bit envious until I went below - but it did make me think about choices and alternatives. -- -jeff www.sv-loki.com "The sea was angry that day, my friend. Like an old man trying to send back soup at the deli." |
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