[Rhodes22-list] Measured Hull Speed

[Bill Effros]

Richard,

I measure my hull speed using a strictly mechanical "Knotstick" (http://www.knotstick.com/) which is often used to calibrate electronic instruments.

Sometimes, when I can't believe the readings, I compare them to my GPS, and attempt to compensate for the speed over land vs. speed through water difference.

I really do consistently get a reading around 6.25 just using my motor at 50% of throttle, when not planing, and not running with the tide.

Roger's is an older hull--is yours older?  Mine is a 1998.  Could there be a difference?

Bill Effros


----- Original Message ----- 
From: Christine Allison 
To: The Rhodes 22 mail list 
Sent: Wednesday, July 23, 2003 9:52 AM
Subject: Re: [Rhodes22-list] Measured Hull Speed


In my opinion the boats hull speed is about 5.2 knots or a little better.  I
make it a point to run my GPS to aid in sail trim when the boat is cranking
along.

 I recognize that the GPS provides speed over the ground however after a lot
of observations and taking the state of the current into consideration I
think a Rhodes would be hard pressed to maintain more then 5.2 knots and in
actuality probably 4.7 to 4.9 knots (sustained) would represent excellent
sailing.

Richard Smith

__________________________________________________
Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list