I actually had the opportunity to sail with Tom Perkins in the 2001 America's Cup Jubilee at Cowes onboard the "Mariette." It was a great deal...
This is why programs such as GHS exist. All they do is iteratively compare displacement by cg. If the moments and forces don't match, it "moves"...
HP48GX seconded. I also have a TI-89 and HP49, but the good old HP48 is still my favorite. My theory is: if you need to do anything more...
I haven't been watching this post for a while, so please forgive me if my comments are not very applicable! However, the design of sailforms is...
Assuming you're working with something like winds gusting over a sail, I would say that you should only consider wind-tunnel testing and forget...
I assume that your code has something such as [N]{b} = {p} [N] would be the basis functions needed to produce nurbs, and {b} are the "ducks" or...
Actually, this has been on my mind for a couple of months also. I have about 3 different spreadsheets for initial and parametric sailing yacht...
I've used GHS, but cannot comment on the other software. Basically, it works quite well (since hydrostatics is what it was designed to do)....
It's a question of stability. IACC rules allow for the possibility of different configurations, and they have been tried. For an airplane as...
Try http://www.netraverse.com/ It doesn't support all directX applications, but I find that it is useful nonetheless.
I can also invert a 1000x1000 matrix by hand, but I have other plans for this next year... I think the answer is automation and efficiency. A...
Thanks a lot, I don't race my Baba 30'... inshore or offshore... I just live on it (I'd rather race other people's boats!) I'll take a look...
Hi, I need to replace (or repair?) my electric bilge pump on my Baba 30'. I currently have a very old bilge pump (~23 years) which is simply a...
Sounds like the theory they used is inviscid... We have a half-hull at Berkeley in the Naval Architecture Building of a "wavy-type" hull. It's...
Hi Tim, Yes, I think I went to your website a few days ago. The grids are impressive. I have three projects which are ongoing myself. The...
If you want really "poor" results, look at my 6-knots wind polar. But this is understandable. Even with sand strips along the appendages and...
Well, I have to reply since I'm the guy who did the VPP for the David Pedrick 44'. If you want more pictures, go to:...
A "poor-man's" swing keel... why, what's wrong??? Yeah, he can just put an actuator on the bolts so that it swings to windward. ;) -Jon
It "swings"... Actually, that's a really good description of how it works. Swing keels are made with a large bulb on the bottom of it which...
It's correct what you say about the jib producing a lot more sideforce per area, but this is only when sailing close to the wind. However,...
