Wills Wing Alpha 180 Owner's Service Manual page 15

8. Install the three longest cambered top surface battens on each side in the sail. Order of insertion is
longest to shortest, from the root out. Do not install the securing strings on the rear at this time.
9. Spread the wings all the way and check all cables for any twisted thimbles or tangled cables.
10. At the rear of the keel, tension the crossbar by pulling on the rope loop which is attached to the
sweep wire keyhole tang. Drop the keyhole tang all the way down over the top portion of the key-
hole collar, and let it slide forward into the locked position. The button lock should snap up into
place behind the rear end of the tang. Next attach the keyhole tang for the top rear wire, and again
verify that the button lock snaps into place behind it.
Never install the keyhole tangs onto the keyhole collar without making absolutely sure
that they are fully engaged on the narrow neck of the collar and slid forward into the fully
locked position. An in-flight disengagement of this attachment will cause a complete loss
of structural support of the glider and a total loss of control.
11. Remove the tip cover bags. Install the washout tips by plugging them straight into the receptacles
in the back side of the leading edge tube near the tip. Make sure that they are inserted as far as
they will go and that there is tension on the bungee holding them in place.
12. Install the remaining cambered battens, and secure all of the cambered battens with a double loop
of battens string.
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