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Copyright © 2014 by Corsair Marine International
(Roller furled mainsail C31.)
Winch the halyard tight until all the wrinkles just disappear from the mainsail luff, no
tighter, and lock the halyard with the rope clutch. The topping lift can now be eased.
All models sail and tack easily under mainsail alone. If you have lot of tacking to clear a
channel then it may be much easier with just the main. You don’t have to worry about
tacking the jib, you won’t be going too fast, particularly in crowded waters, and visibility
is excellent.
The correct technique for sailing mainsail only is to sheet it free to avoid choking the
boat. The traveler can be locked on the centerline, and the mainsheet slackened off so
the boom is about 12” out from center. You boat speed should be 5 - 6 knots in 10 to 15
knots of wind, even better with a rotating mast. If you find boat speed is less, then the
problem is an over-sheeted main or trying to point too high.
There is a technique involved in sailing main only, and once learned how, it is a very
relaxed form of sailing. The secret is to keep the main eased out more, particularly after
a tack. Don’t try to point high until boat speed has built up.
The jib halyard can now be connected and the jib hoisted. Tighten until the wrinkles just
disappear from the jib luff, using the halyard winch if needed. There’s no need to go any
tighter. As the wind increases you will find the halyard will need tightening, again, just
enough to just get the wrinkles out. Sheet the jib and you are sailing!
If available, two additional controls may be added to the mainsail at this stage, these
being the boom vang (fixed masts only) which just snaps on, and the Cunningham eye
tackle. A 4:1 fiddle block with cleat is snap shackled to the mast step, and the line from
the top fiddle block is passed through the Cunningham eye on the sail and hooked to
the horn cleat on the side of the mast. This gives an 8:1 purchase, and should be
adjusted to just remove the wrinkles from the mainsail luff. Neither of these controls
are essential for everyday sailing, their main purpose being to give more efficient
control over the mainsail. Both must be removed when roller furling.
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