When I reef the sail on Marie G, I always point her to the Wind, let the sheet og, keep the tiller agaist the Wind. Take Down one panel, tighten the yard hauling line. Bring her back to the previous course, go forward to tighten up the luff and tame the exess sailcloth acting like an air brake, and thats it. Reefing running is for me defined as no-og aerea, just like gybing in a blow.
Arne Kverneland:
Reefing and un-reefing with wind in the sail
It seems that only small differences in the sail planform makes a lot of difference with respect to reefing.
Both when reefing and un-reefing Johanna’s sail (AR=1.87, 5-part halyard), the rule was to do it with no wind in the sail (slack sheet). Only light forces in the sheet was enough to make the yard and battens droop and it was difficult to correct it.
On the Oslo-dinghy Broremann (AR=2.15, single part halyard), I regularly hoisted and reefed with wind in the sail, no problem.
Same with my present boat, the 6.5m Frøken Sørensen(AR=1.95, 3-part halyard). I did this several times this summer.
My preliminary conclusion is that by moving the slingpoint of the halyard 3 – 5% aft of the midpoint, the yard is more likely to “peak up itself”. My hunch is that the lower the AR, the further aft the slingpoint should sit. Unfortunately, the mast on Johanna is on the short side, so the slingpoint cannot be moved far aft. Just as well with that big sail - it would be hard to hoist the sail with the sheets pulling anyway.
Cheers, Arne