Hitting On All Cylinders

by Scott Callahan

One of the most Important jobs the crew has on an M-Scow is to trim the jib properly. Along with working the boards and playing their weight, by far the most important is the proper trimming of the jib. Although the jib is half the size of the mainsail, its effects are more than that. A properly trimmed jib can improve the boats performance both on and off the wind. Just as in navigating, points of reference are important to have in order to know where you are going. For example, it is important to have the sheets marked. This supplies a reference point where both the crew and skipper can judge the setting. This reference point can be put on the sheet, either near the trimming block or where the jib is jammed. This can eliminate mistakes when time is taken up by working the boards and one's weight. As the boat is tacking, the crew can pull in the jib, jam it on the mark, and proceed to other functions and return back to the jib after they have been completed. This allows the boat to perform at near top performance and eliminates any guesswork. Telltales indicate whether the sail is flowing properly or not. It is important to at least have 2 sets of telltales on an M-Scow jib. The telltales should be located approximately a foot aft of the luff, with one located in the center of the upper half of the sail and the other in the lower part of the sail.

Reading The Telltales. Whether on, or off the wind, the telltales should be flowing aft. If the windward telltale is flowing up, the jib should be pulled in, in order for it to flow aft and at the same time the boat should be headed off. If the opposite occurs, where the windward or leeward telltales drop down, this indicates that the sail is in a stalled position. The sail should be eased at this point to allow the telltales to flow aft.

The Jib Track Trimming Position. In lighter and choppier conditions, the track should be moved forward which makes a fuller, more powerful sail. In windier, flatter water the track should be moved aft which will flatten the sail and allow the boat to sail closer to the wind.

Barber Hauls. Barber Hauls are used to adjust the angle of the trimming position and are used when the boat is off the wind. Typically they are used when beam to broad reaching to open up the jib slot.

One last tip. Whenever you alter your course, or the wind increases or decreases, adjust your sails either in or out. When blowing off in a puff, ease the jib. Good jib trim is not only important, but essential for an overall good performance.