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-   -   Sailboat design question (http://www.sailnet.com/forums/general-discussion-sailing-related/18234-sailboat-design-question.html)

skobrien 07-14-2006 04:35 PM

Sailboat design question
 
I don't know squat about the history of sailboat design, so would somebody please explain the change in shapes that have predominated over time? It seems like in the 60's boats were fairly narrow and with the maximum beam around midships, in the 70's they seemed to get wider but with really pinched transoms and the maximum beam pulled back, then the 80's on forward they stayed wide all the way to the stern. All along the way, freeboard seems to have marched steadily higher. Am I off base? Did any of these design trends actually make the boats better at sailing?

seabreeze_97 07-15-2006 07:08 PM

http://www.boatus.com/goodoldboat/ratingrules.htm

A good read on the subject.

skobrien 07-16-2006 08:39 AM

Wanted a bit more
 
Thanks, seabreeze_97. I have read that article, and it does address some of the things I have noticed, but it leaves open the big question -- did any of these design changes, whether motivated by racing rules or other forces, actually result in better sailing boats? Or was the effect perverse, rewarding inferior design choices?

SteveCox 07-16-2006 10:11 AM

I had the opportunity to hear Robert Perry discuss some of these same issues. The gist of his opinion was that while none of these changes resulted in better boats per se, the cumulative research and what was learned from trying different things has resulted in better sailing boats today than in the past. More modern underbodies point better and are faster than where we started before the racing rules etc.

infonote 07-17-2006 10:30 AM

These are some of the factors that designers think about when designing a boat.

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

There are some calculations if you are mathematical.

infonote 07-17-2006 10:31 AM

These are some of the factors that designers think about when designing a boat.

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

There are some calculations if you are mathematical.


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