Polars, PHRF, boat speed, boat shopping
Why don't more manufacturers, or even more accurately, why doesn't the general public demand more information on boat performance?
Since my current boat is rather slow, I've been shopping for a much faster boat. However determining speed performance has been nearly impossible. About the only rating common to most boats for comparison purposes has been PHRF, which seams to give some indication of performance but not much. SA/D doesn't seam to tell you much, as my current boat has a pretty good SA/D ratio, but is still pretty slow, even in light winds.
A comment made to me by the manufacturer's rep concerning the Hunter Edge was that anything under 20 feet with a keel will be slow, however from what little bit I have seen, the Edge seams like it would be slow as well, even though it is a pretty long boat. But its difficult to know for sure. Why can't one find polars, or even some indication in the boat reviews, some sort of indication like on a beam reach, with ~10 knots of wind, the boat was moving X knots. Then what angle at a close reach does the speed really start to fall off. But no one ever seams to want to publish that. Beneteau seems to be about the only company that publishes polars, which seems very useful for shopping.
Last question, can one sail a water ballasted boat with no ballast in light winds? In other words, if the wind is under 10mph, or maybe even 8 mph, can one just leave the ballast out, and make the boat perform much better, or even partial ballast? In theory, an adjustable ballast would be very desirable if it worked.
( I started looking at tirmorans, but they are all way out of my budget league)
AFC 17' 2+2 (sold in 2012)
Sunfish project boat
Sailing a large boat on a small lake is very tacky.
Last edited by Daveinet; 02-12-2011 at 09:11 AM.