SailNet Community - View Single Post - Mast rake on a PSC 37
View Single Post
  #7  
Old 10-27-2011
RichH's Avatar
RichH RichH is online now
Senior Member
 
Join Date: Jul 2000
Location: Pennsylvania
Posts: 2,837
Thanks: 9
Thanked 75 Times in 68 Posts
Rep Power: 15
RichH will become famous soon enough
John
I sail a similar design boat. Weather helm also (perhaps principally) depends on the 'shape' of the mainsail and where the position of maximum draft (POMD) occurs. The POMD can be shifted fore/aft by adjusting halyard (or cunningham) tension and that will establish the amount of weather helm desired.
A woven dacron sail needs to be additionally tensioned along the luff AFTER being 'raised' to take the proper shape that the sailmaker 'designed' into the sail .... OR if the sail is aged, the luff boltrope probably has 'shrunken' ... all leading to 'weather helm.

Weather helm is function of mast rake AND mainsail SHAPE. Here's an article I wrote some time ago about how to 'properly' raise a woven dacron mainsail to obtain 'as designed' shape and 'proper' weather helm: How to properly RAISE a woven dacron mainsail - SailboatOwners.com

hope this helps. ;-)
Reply With Quote Share with Facebook