Home |
Search |
Today's Posts |
|
#1
![]() |
|||
|
|||
![]() "Peter Ward" wrote in message m... I guess I was thinking of seaworthiness in the fairly narrow sense of being able to survive something like 'The Perfect Storm'; & particularly the ability to quickly self-right in the event of capsize. According to Czeslaw A. Marchaj in 'Seaworthiness : The Forgotten Factor' the "point of vanishing stability" et.al. of most modern yacht designs is woefully inadequate - deficiencies he attributes to the pervasive influence of International Offshore Rules & the 'floating gin-palace' ethos of the charter-boat industry, on modern yacht design & construction. This observation appears to have been borne-out empirically by the 1988 Sydney to Hobart Yacht Race http://www.radford-yacht.com/stablty1.html In the Sydney-Hobart, the main lesson is don't get caught where the conditions are bad. The analysis showed that it didn't really matter what type of boat you were in - heavy narrow boats, light beamy ones, and everything in between got capsized.. But the boats in a certain area, the area with the worst conditions, were most likely to capsize. John Rousmaniere in his excellent book Fastnet Force Ten came to a somewhat similar conclusion about the Fastnet - that boats in a certain area were more likely to be capsized. That doesn't validate poor design, but it tells me that if you are in the wrong place at the wrong time, it doesn't matter what kind of boat you're in. Personally, Id recommend a boat with a limit of positive stability of greater than 120 degrees, with all the cruising gear included in the calculation (which is probably not the design condition). And make sure your boat is ISAF Category 1 or zero compliant. Design is one element of seaworthiness, but the crew (and luck) is equally or more important. Consider that the boat that won the 98 Sydney-Hobart was a light 35 footer that consistently does well in that race and you'll start to get a feeling that those guys could probably sail a crappy old raft through just about anything. And it sounds like you've read the books about the guys with no experience who cross oceans, so you can see the part that lady luck plays as well. More books that would probably be of interest to you: Heavy Weather Sailing has lots of good info, including chapters about desingn features. The Drag Device Data Book if you're really serious about going offshore. Fastnet Force 10. There's also a book about the Queen's Birthday Storm that hit a bunch of cruisers in the South Pacific, but I can't remember the name right now. As a natural pessimist, I want to build the 'ultimate-unsinkable' craft, which will weather the worst that the sea can inflict; however, I get the distinct impression leafing through all the myriad yachting magazines, that most boats out there are little more than flimsy eye-candy. Just another prettified escapist consumer commodity designed more to part you from your hard-earned lucre, than to be truly "worthy of the sea". Well, there are good boats and bad boats. There are quite a few seaworthy ones available for good prices. Some of them are lightweight flyers, and some are heavy tanks. It's hard to make a boat unsinkable but it is possible to minimize the probability. Watertight subdivision is one way to do it, but you will find that only the Amel boats come from the factory that way. Ramblin' Matt |
#2
![]() |
|||
|
|||
![]() "Peter Ward" wrote in message m... I guess I was thinking of seaworthiness in the fairly narrow sense of being able to survive something like 'The Perfect Storm'; If it's The Perfect Storm you want to survive then clearly you need a Westsail 32. A W32 DID survive the Perfect Storm. Unmanned no-less and, as far as I last heard is still sailing. Yet another Steve |
#3
![]() |
|||
|
|||
![]()
Yes, but the Westsail 32 earned the sobriquet "WetSnail". A tough boat, but
not my first choice for anything. -- Jim Woodward www.mvFintry.com .. "Stephen Yoder" wrote in message thlink.net... "Peter Ward" wrote in message m... I guess I was thinking of seaworthiness in the fairly narrow sense of being able to survive something like 'The Perfect Storm'; If it's The Perfect Storm you want to survive then clearly you need a Westsail 32. A W32 DID survive the Perfect Storm. Unmanned no-less and, as far as I last heard is still sailing. Yet another Steve |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|