Wills Wing Alpha 180 Owner's Service Manual page 16

13. Insert the straight #1 battens through the loop of 505 cord and between the top and bottom
sail surface at the tip, and plug the forked batten tip onto the stud on the back side of the lead-
ing edge tube. Secure the batten with a double loop of the 505 cord. The tension on the #1
batten cord should be firm, but not so tight that is slackens the sail mount webbing at the
leading edge sail mount endcap. If the #1 batten cord is too tight it will make the glider less
responsive to turn input at slow speeds, and more likely to enter a spin from a stalled turn.
14. At this time preflight the following from the open end of the wingtip:
a. The sail mount webbing - make sure that the inner loop of webbing is laying flat in the
bottom of the slot in the sail mount endcap.
b. The number one batten engagement on the clevis pin.
c. The safety ring on the clevis pin that secures the front end of the rear leading edge tube
15. Go to the nose and attach the keyhole tang securing the bottom front wires, by pulling down on
the nose of the glider while pressing the tang upwards over the shouldered bolt. (Remember it is
the pulling down of the glider's nose rather than the upward pressure on the tang that allows you
to install the tang over the bolt. If you have difficulty installing the tang, and no wires are twisted
or thimbles cocked, it is probably because the glider is not sitting on level ground.) Make sure
that the spring loaded button lock pops up behind the tang, securing it in place.
16. Push the nose batten fully back into the sail and lift the open end of the batten onto the stud on
the top of the keel. Look into the noseplate and preflight the top front wire. Preflight each of the
lockuts on the bottom of the noseplate - make sure they are tight, and that the bolt extends at least
one full thread beyond the nut.
— 10 —