Wills Wing Fusion 141, Owner'S Service Manual, Page: 24 / 68

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Check that all batten strings are properly secured.
Check that the sprog is properly secured in position supporting the transverse batten, and that the sprog
access zipper is properly closed.
From the rear keel
Check again that the keyhole channel is fully engaged and locked to the keyhole bolt. Also check that
the sweep wires are tight and actively tensioning the channel on the bolt.
Along the trailing edge, right wing
Same as for left wing.
At the right tip
Same as for left tip.
Along the right leading edge
Same as for left leading edge.
Under the glider at the control bar
Sight down the downtubes, making sure that they are straight.
Unzip the center zipper.
Check the sweep wires for wear where the pass through the hang system pillar and where they pass
over the keel mounted VG pulley bracket.
Check the cables at the control bar corners, making sure there are no kinks or twisted thimbles. Check
for proper installation of all nuts and safety rings at the control bar corners.
Check that the hang system spreader bar is properly oriented (ends lower than center pivot), is fully
engaged on the pillar and is free to pivot. Check that the back up hang loop is secured to the keel
behind the base for the elevated hang system.
Check the control bar base bracket pulley for free rotation. Overtightening of the mounting bolts will
cause this pulley to bind. Check the routing of the VG rope around the keel mounted pulley. Check
that the routing of all VG ropes and pulleys is clear and straight.
It is possible for the VG activation cable which runs along the leading edge to become
caught under the front end of a bottom surface batten pocket. This is most likely to
happen if the bottom surface battens are installed before the crossbar is tensioned. You
should therefore be sure to install the bottom surface battens only after the crossbar is
tensioned. Also, during the preflight, before cycling the VG system, you should check
specifically to see that the VG cables on each side are not caught under the front of any
bottom surface batten pocket.
Check the VG operation - the pull should be light initially, becoming harder as the VG tight limit is
reached. The return on release should be smooth. At the full loose end of the travel, the VG may not