I guess maybe I don't want to know a lot more I thought the main
was in great shape because the foil sections look just like I'm used
to on airplanes. Now I can see that it's pretty aged. It isn't too
bad though. The maximum draft is at about 30% of the chord. There is
a pocket at the foot and nothing farther than about a foot from the
boom responds to outhaul tension.

OTOH, cunningham, another swig on the backstay and jib halyard,
traveler amidships, moving the sheet blocks back just a foot, and
easing the sheet for three more inches between spreader and sail makes
a dramatic difference. Speed length ratio of 1.22 in 10-12 knots of
wind and tacking to what was on the beam. That's good enough for
cruising. She'll point up higher with only a little speed penalty but
lots of backwinding.

The backwinding is different on one tack than the other. I think
that's a function of the weather cloth on the genoa effecting the
leach shape differently when it's to windward than when it's to
leeward. Another strike against roller furling sails.

--

Roger Long