Aeros Discus 12, Owner'S Manual

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8
PREFLIGHT PROCEDURE
Conduct a complete preflight inspection of the glider, checking all assemblies, which have not already been checked. Every
bolt, nut, pin, safety ring, and fastener of any kind should be checked during every pre-flight. A full pre-flight inspection should
precede every flight you make, not just the first flight of the day.
Carefully check the entire length of the leading edge pocket to insure that the Mylar insert is lying flat in the pocket. If any
section of the Mylar is folded under, de-tension the crossbar, remove the batten closest to the area of distortion, and unfold
the Mylar.
Along the left leading edge:
Open the crossbar junction access zipper and look inside, making sure that side wires are properly secured to the
crossbar, that the thimbles are not cocked on the tang. Check the split pin and the nut, which secures the leading edge –
crossbar junction. Check that the sail is not caught on the crossbar end, or on any of the hardware.
Remember to close the access zipper.
At the left wingtip:
Check that the tip wand lever access velcro is closed.
Along the trailing edge, left wing:
Check that there are no tears in the sail material along the trailing
edge.
Check that all battens are properly secured.
Check that the outboard sprog is properly secured in position
supporting the transverse battens, and that the sprog access zipper
is properly closed. With the VG set tight, the sprog paddle slides
forward on the transverse batten. Make sure that at VG full tight the
rear end of the paddle does not slide past the rear edge of the
transverse batten, or the system could malfunction.
Check that the bridles are properly engaged (
Photo 19
).
Photo 19
From the rear keel:
Check that the sweep wires are tight and secured on the hook on
the keel tube. Check the proper alignment of the VG ropes – they
must not be twisted.
Check the nut of the kingpost base bracket, which secures the
channel to the keel.
Check the safety ring and the clevis pin, which secures the
kingpost to the channel.
Check the safety ring, nut and bolt which secures the hang loop to
the kingpost (
Photo 20
).
Check the kingpost top for proper attachment of the bridles and
condition of the top rear wire and bridle wires.
Photo 20
Along the trailing edge, right wing: Same as for the left wing.
At the right tip:
Same as for the left tip.
Along the right leading edge:
Same as for the left leading edge.
Under the glider at the control bar:
Sight down the downtubes, making sure that they are straight.
Do not fly with bent downtubes!