Yacht Design ratios

[SloopJohnB]

Sometime ago I came across a website explaining the various ratios such as Sa/Displ, LWL/Displ etc and the range of results per type of boat, which I cann't find now. Can anyone help?

What formula & units are used for these ratios?

[PAR]

http://www.sailingusa.info/design_winds.htm

[Raggi_Thor]

I like this one, even if he doesn't use the metric system :-)

"Ted Brewer Presents A Primer on Yacht Design,
The Numbers (More Than You Ever Wanted To Know!)
(And please don't ask me what the Metric equivalents are!)"

http://www.tedbrewer.com/yachtdesign.html