
12-21-2012
|
 |
Barquito
|
|
Join Date: Dec 2007
Location: Madison, WI
Posts: 1,509
Thanks: 0
Thanked 5 Times in 5 Posts
Rep Power: 6
|
|
|
Re: Galilee 15' - Need help
The luff rope may have shrunk.
Write-up from RichH:
Quote:
Shrinking Boltropes .... a 'problem' with aged sails.
Dacron boltropes change shape over time and depending on HOW MANY TIMES they get ‘stretched-out’ ... and they progressively and additively get shorter and fatter. So, if it takes an immense amount of halyard tension to get to the ‘neutral helm’, etc., consider to take your mainsail to a sailmaker to get the boltrope adjusted or ‘eased’. Easing the boltrope will quickly and cost effectively bring an old ‘baggy’, powered-up, draft-aft sail ‘back to life and proper SHAPE’ ... and usually at minimal cost.
Another way to check for a shrunken boltrope: on a windless day, raise the sail to ‘just up’, add the additional 1” / 10-11 ft. of luff length by added halyard tension, then check the angle that the top of the boom makes with the mast at the gooseneck. If that angle is much greater than 90 degrees ... say 95 to 100 degrees, it means that the boltrope has shrunken and should to be readjusted or ‘eased’.
Most boats with ‘shrunken boltropes, or improperly raised boltroped mainsails, will visually have the aft end of the boom LOWER than the gooseneck!!!! .... probably 95% of all cruisers & ‘non-racing’ sailors will have a ‘droopy’ aft section of their boom.
Once you have the proper basic ‘as designed’ SHAPE in your mainsail by properly RAISING it, etc. (by stretching out that boltrope!!!!) which brings the point of maximum draft to the ‘correct’ fore/aft position, all the ‘other trim and shaping’ efforts will be ‘much’ easier and more ‘effortless’.
|
__________________
Bristol 27
Cirque
|