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Before conducting this fix make sure that the sail is seated properly from side to side. Check to see that the Velcro straps that attach the sail at the
nose are holding each side of the sail an equal distance from the end of the spar. Sight down the zipper when the sail is tensioned to make sure it is
straight and inline with the keel. If it appears to be angled to one side, adjust it using the black straps that hold the trailing edge of the sail to the
keel. Also, confirm that there is sufficient slackness in the control cables on both sides, such that one side is not partially deploying a spoiler, and
causing a turn.
Remove the Delrin block at the end of rib seven at the spar end. Slide a washer over the Delrin block. Push the Delrin block back into the end of
the rib.
The washer may be made from any material suitably sized. You can cut any width piece that you like. Add a thin washer and test before adding a
thicker one.
Adding a washer at the bottom of the rib, will increase the washout, and at the top, decrease. For instance, if the glider has a right turn, then place a
washer on the bottom of the seventh rib, on the left side, or a washer at the top of the rib on the right side.
Initially increase the washout of the seventh rib on the other wing opposite the turn (by placing a washer on the bottom of the rib). This is better,
then decreasing the washout of the wing with the turn.
Sail Tension
You tension the sail by tightening the turnbuckle, at the nose of the glider. If you find it hard to turn the turnbuckle, then the sail is too tight and
must be loosened at the trailing edge.
If the sail is loose shorten the black straps that attach the trailing edge of the sail to the keel. After making this adjustment, you can adjust the sail
by repositioning the Velcro where the two sails zipper together in the middle. Do not just loosen or tighten the turnbuckle to tighten the sail. The
correct turnbuckle adjustment determines the sweep angle of the wing. This is discussed below.
