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Butterfly Adjustments


The two~Wpiece mast joint requires no mechanical fasteners. If the joint becomes stuck, grasp the mast close either side of the joint and shake it as you pull it apart.

A good rule of thumb for determining mast rake is to keep the mast perpendicular when the boat is at rest in the water. You would then have no forward or aft rake. When the mast is raked straight or back, the boat will tend to turn into the wind when close hauled on a windward beat. This is a desirable situation, as a boat with no one aboard will turn into the wind and come to a stop. It is known as a weather helm since the boat always steers itself into the wind (to weather) and must be held on course with the tiller. As the mast is raked forward the weather helm will diminish and will become a lee helm at which point the boat tries to turn away from the wind and run off on a reach. For safety~Rs sake, a lee helm is undesirable and should be avoided.

The drain plug is located in the transom next to the lower gudgeon. Occasionally, when the boat is out of the water, remove the plug and lift the bow to check for condensation that may form in the hull. The plug can be tightened by snapping the lever in and also by screwing the lever clockwise. If the plug is over tightened, it will be difficult to remove as the end of the lever screw will pull through the rubber, expanding it. If this happens, screw the lever until it is very loose, and wiggle the plug out.


The snubber may be adjusted to change the tension against the board. The opening between the rubber should be 9/16". When the daggerboard is dry, it may seem too tight. When the board is wet, it will work much easier. If the snubber still grips too tight, round the sharp edges with a few passes of sandpaper. The snubber may be adjusted by loosening the screws and sliding the rubber in or out.

The rudder blade should pivot freely with the coil spring doing all of the work in holding the blade up or down. To adjust pivot tension, loosen the lock nut, turn the screw, and then retighten the lock nut. The screw is threaded into the casting so the adjustment cannot be made by turning the nut or screw only.

The hiking stick and tiller pivot bolts should be kept snug but not overly tight. The tiller is held up off the deck by a nylon button resting on a pin on the rudder. If the tiller pivot should wear enough to allow the tiller to touch the deck, a shim can be placed under the nylon button. Simply pull the button off, insert a washer or any hard material and tap button back into place.

A light coat of Vasoline or non-staining grease spread on the mast step will facilitate the pivoting action and reduce wear. If you are launching off of sandy beaches, it may be well to omit the grease or use a dry lubricant or wax.