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Post Options Post Options   Quote Jon711 Quote  Post ReplyReply Direct Link To This Post Topic: Nemesis
    Posted: 30 Oct 13 at 8:16pm
Yes, that makes sense, but, it would also make Mirrors/Oppies/cadets etc the biggest nose divers going!!! As you stated earlier, it is possibly more complex, and maybe I am being to simplistic.....

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Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 30 Oct 13 at 8:11pm
In the case of Solos, Europes, Lightnings and the like, I've always assumed the nosediving was caused by the proximity of the mast to the front of the boat, Lasers have extra length there, and are far less prone.

I'm sure Dan can tell us if Punk nosedives. If not, then fine bows are not intrinsically the problem.
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Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 30 Oct 13 at 7:55pm
Well, you can sort of say that nosediving happens when the hull stops and the rig keeps going. So is the hull going to stop faster if a big wide fat bow goes in the water or a narrow skinny one?
Solos, for example, will nosedive quite handily, and few folk have ever called them fine bowed.
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Post Options Post Options   Quote Jon711 Quote  Post ReplyReply Direct Link To This Post Posted: 30 Oct 13 at 7:25pm
Jim, that's interesting, not heard that before, any chance you can explain further? Not disagreeing, it just seems to go against logic, but as I said I'not a designer, and can only go from experience... To my mind long pointy bows seem to want to nose dive quicker than blunt bows, but I do stand to be corrected...

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Post Options Post Options   Quote JimC Quote  Post ReplyReply Direct Link To This Post Posted: 30 Oct 13 at 6:05pm
Nose diving behaviour seems to be very complicated, and its pretty clear that more buoyancy forward can very easily make things worse rather than better.

Edited by JimC - 30 Oct 13 at 6:40pm
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Post Options Post Options   Quote Jon711 Quote  Post ReplyReply Direct Link To This Post Posted: 30 Oct 13 at 5:35pm
Originally posted by Peaky

I'm sure it will be a fairly wet ride (that's the plan!), but the longish length and shortish mast will hopefully make up for the low freeboard and deep forefoot.
There are some boats that do their best to make you forget that sailing is a water sport. This ain't one of them. But it should be as easy as a Topper to right from a capsize, so no drama, no time lost - just a buzz!


Yeah, I get your point, but with the square top main, and what appears to be low buoyancy forward, deep reaches and runs in a breeze, could really sort the men out from the boys!! As I said, I hope I'm wrong as it really does look nice, but I would be tempted to forget the square top main, or put more buoyancy in the forward sections. It may work to increase the sheer forward slightly so that as the bow submerges, more buoyancy comes into effect, before the decks submerge. By no means am a boat designer, just built and sailed many different classes, and I hope you prove me wrong...

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Post Options Post Options   Quote iitick Quote  Post ReplyReply Direct Link To This Post Posted: 30 Oct 13 at 5:11pm
Put a Tasar next to a B14 and they are alike. I have, but the Tasar lloks like a coal barge version by comparison.
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Post Options Post Options   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: 30 Oct 13 at 4:26pm
Gaussian curvature of the underside of Nemesis and a Tasar(ish):


They are actually really quite different underneath.

Edited by Peaky - 30 Oct 13 at 4:27pm
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Post Options Post Options   Quote alstorer Quote  Post ReplyReply Direct Link To This Post Posted: 30 Oct 13 at 4:09pm
the underside of a b14 is a Tasar. Possibly slightly squashed. But very much a Tasar.
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Post Options Post Options   Quote Rupert Quote  Post ReplyReply Direct Link To This Post Posted: 30 Oct 13 at 3:53pm
The point of a boat is to separate you from the water - if I wanted to get wet, I'd swim!

Actually, I can see that a wet boat (in warm water) is fun.

Somehow, the modern computer renders of boats do seem to produce an image which is remarkably similar to all the others. Or is it just that all modern designs are variations on a wedge theme?
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