I did 12 off Discovery Island in Haro Strait off Victoria BC with 12 knots
of wind and a 6 knot flood tide. My nephew kept reading off the numbers on
the GPS and his voice kept getting higher and higher. Unfortunatley it
wasn't in the direction I wanted to go. Could have made it to San Juan
Island in record time but once I turned in the direction we needed to go my
nephew's face fell along with our speed.
Was fun though.
Lesley Quin
C27 SeaQuin IV
Victoria, BC.....jewel of the Pacific
http://www.lesleyquin.com/index.html
----- Original Message -----
From: "Larry Robertie" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Monday, October 02, 2006 5:49 PM
Subject: RE: catalina27-talk: Hull Speed
Actually, this past summer I hit 10 knots on the GPS as I "squirted"
through
the Cape Cod Canal.
Quite a ride
-----Original Message-----
From: [email protected]
[mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED]
Sent: Monday, October 02, 2006 8:19 PM
To: [email protected]
Subject: RE: catalina27-talk: Hull Speed
i think the whole idea of theoretical hull speeds has sorta
gone the way of the...uh...square rigged top'sl.
i mean, what difference does it make? Velocity Prediction
Programs (VPP)s have made an attempt at rating boats for handicap racing
and work reasonably well, but as far as I know the newest rating
system that is trying to gain international acceptance, e.g., IRC, is
based on a series of VPPs, averaged over a range of conditions and
sea state probabilites (the IRC algorithims are a VERY closely
guarded secret) [sorry about the spelling of "algorithims"].
People, on this list, can attest to the fact that a C27 will do
9-something knots off a wave front with a chute
up in 25-30 knots of breeze.
But a better representation of normal speeds assuming a clean, fair
bottom and decent sails would be the polars for the boat. (I had
them once and then they disappeared into the polarsphere)
The bottom line is if you're racing One Design and the guy who
started next to you is higher and faster, you're screwed.
tf
