Wills Wing Fusion 141, Owner'S Service Manual

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Do not attempt to stuff the sail between the mylar pocket and the leading edge tube at
any point behind the kingpost base. The internal fabric ribs prevent this. Because of the
fabric ribs, the rear edge of the mylar pocket in the last 1/3 of the leading edge has a
strong tendency to become creased at the rear edge of the mylar insert. To prevent this it
is necessary to roll the aft part of the sail very gently, install the aft velcros loose, and
then, as a final step, work your way along the rear edge of the mylar pocket as far down
towards the tip as possible, pulling the sail behind the mylar pocket away from the
leading edge so that the mylar pocket lies flat and is not curled under at the rear edge.
12. Install the glider bag. Flip the glider over onto the ground. Pull the rear keel out from between and
slightly above the leading edges. Stowing the keel between the leading edges causes wear on the
bottom surface sail because of interference with the cam VG hardware.
13. Fold up the basetube. Replace all protective bags as you pack the glider away.
When folding in the folding basetube take care to avoid the following two problems:
a. Do not fold the basetube together with the center sleeve not fully retracted from the center
hinge. You will damage the sleeve.
b. Do not fold the basetube together with your hands or fingers around either the basetube or
the lower portion of the downtube. It will hurt.
Fusion Stability Systems
Several design features of the Fusion determine the glider's degree of stability in pitch:
a. The combination of wing sweep and spanwise twist.
b. Reflex in the root section, the degree of which is determined by the lengths and hole locations of
the keel, the control bar and front to rear bottom wires, and by the shape of the root battens.
c. The alignment of the sprogs, and the height at which they and the transverse battens support the
trailing edge, and the alignment of the washout tubes, and the height at which they support the
trailing edge.
The transverse batten is designed to support a load applied at each end while supported
in the center, as is the case when installed in the glider. Loading the batten in any other
manner may damage it.
d. The shape of the preformed battens and the internal fabric ribs, and adjustment of the internal
velcro attachments which define the airfoil.
Correct attachment and proper adjustment of the sprogs are critical to providing adequate stability at
low angles of attack, particularly those below the normal operating range.