Trimming main in heavy Air

Feb 26, 2004
23,137
Catalina 34 224 Maple Bay, BC, Canada
I have luffed the main top on a short windy leg usually because I'm lazy, instead flattening the sail like I should. It's great fun to know that it's actually a "technique". :)
Very good point. In addition to these two techniques, there's also the fisherman's reef for short segments of heavy air. Short, not all day!
 
Nov 26, 2012
1,654
C&C 40-2 Berkeley
Thanks all for the thoughtful input and thanks Jackdaw for the sketch. Lots of talk about flagging the sail. I generally do not let the leach get so loose that the sail flags except for maybe on occasion when I dump the main in a gust. It's all about making the boat behave and sail smoothly. Usually, when I do this I will also move the jib cars aft to get a similarly shaped headsail.
 
Sep 30, 2013
3,645
1988 Catalina 22 North Florida
Very good point. In addition to these two techniques, there's also the fisherman's reef for short segments of heavy air. Short, not all day!
Stu, what's a fisherman's reef?

I know I've heard the term, but I don't remember what it means, and even google is failing me (or I'm failing at google, more likely).
 
Oct 9, 2008
1,742
Bristol 29.9 Dana Point
Stu, what's a fisherman's reef?

I know I've heard the term, but I don't remember what it means, and even google is failing me (or I'm failing at google, more likely).
When sailing high the jib is typically sheeted tight. In a puff or lazy sailor on a windy beat, you can ease the the main sheet with the traveler to leeward. This puts the main luff in the wash of the jib and stalls it. Basically the main is trimmed to sh$t but it's a quick way to depower it. Same theory as "when in doubt let it out", except you don't trim the jib out, and you leave the sails like that until the wind calms or you decide on other tactics.
 
Feb 26, 2004
23,137
Catalina 34 224 Maple Bay, BC, Canada
That's the idea. Google it. :):):) I see you've tried that without success. It simply is letting the main out, usually with the traveler rather than the mainsheet, and letting the luff, well, luff a bit.
 
Last edited:

Apex

.
Jun 19, 2013
1,219
C&C 30 Elk Rapids
I didn't see mention of the vang, but assume it will need to book off slightly to allow the boom to rise, opening the leech?
 
Sep 30, 2013
3,645
1988 Catalina 22 North Florida
That's the idea. Google it. :):):) I see you've tried that without success. It simply is letting the main out, usually with the traveler rather than the mainsheet, and letting the luff, well, luff a bit.
Thanks guys! Yeah, even with the term in quotes, all the googles would give me was a million results for "Frenchman's Reef" ... which I now know is a Marriott resort on the south shore of St. Thomas, where they welcome guests to the ultimate US Virgin Island hotel experience. :)
 

druid

.
Apr 22, 2009
837
Ontario 32 Pender Harbour
I used to do that all the time on my Cal 25 - I called it "twisting out". It's good because: 1. less heel because there's less pressure on the top part of the sail, and 2. you can bear off and fill the top part on the luffs, and head up for the puffs.
If you do it right, the top part is not twisted out enough to flog.

druid