Mark,
Thanks
Patrick
----- Original Message -----
From: "Mark Tamblyn" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Friday, August 18, 2006 3:14 PM
Subject: RE: catalina27-talk: Headsail
As a sail is rolled up on a roller furler the sail shape changes.
Looking at the sail as a wing airfoil the thickness to length ration
gets larger unless there is a wad of foam in the rolled up sail to
absorb the extra cloth.
The ultimate effect of this loss of airfoil shape is the sail looses its
efficency as a wing and begins to act like a bag hanging in the wind.
I've had one day where I was too lazy to change sails and tried sailing
with a mostly furled genoa in 20 plus conditions. It is quite amazing
how badly the boat behaves and unnerving to have lee helm on the tiller
too.
Mark Tamblyn
-----Original Message-----
From: [email protected]
[mailto:[EMAIL PROTECTED] On Behalf Of Patrick R Ford
Sent: Friday, August 18, 2006 3:49 PM
To: IC27A
Subject: catalina27-talk: Headsail
Listers,
Article on furling and headsails in the August Mainsail
Technical Pull out section. There is a standard headsail
and reefing headsail.My sail came with the boat. How can I visually tell
if
it is reefing or standard ? Why is a reefed, non
reefing sail " very bad in high winds " ?
Pat Ford
Seabiscuit 3692
Port Washington, WI
