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STOP: Do Not attempt to stuff the sail between the mylar pocket and the lead-
ing 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 loosel, 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.
One of the four narrow velcro ties has a pad sewn to it. This is to be used on the
right wing, adjacent to the cheek block pulley on the keel. The pad should be
positioned so as to be centered on the cheek block pulley.
7) Install the glider bag. If breaking the glider down on the bar, at this point detach the swan
wire at the nose, rock the glider at the nose so that it is square to the control bar apex, and
lower the glider towards the ground as the apex slides aft. As the glider nears the ground,
reach down for the control bar basetube, lift it off the ground, and flip the glider over onto it's
back.
8) Fold up the basetube. Replace all protective bags as you pack the glider away.
STOP: When folding in the folding basetube take care to avoid 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.
RamAir STABILITY SYSTEMS
Several design features of the RamAir 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 of the
kingpost, control bar, and front to rear top and bottom wires, by the shape of the root bat-
tens, by the lengths of the front keel pocket and front and rear "keel pocket" webbing loops
which attach the root battens to the keel.
c) Reflex support bridles running from the kingpost to the trailing edge at the number four,
six, and eight battens.
d) The shape of the preformed battens and the internal fabric ribs which define the airfoil.
Correct attachment and proper adjustment of the reflex support bridles are critical to provid-
ing adequate stability at low angles of attack, particularly those below the normal operating
range. On the RamAir 154, unlike on the 146 and other Wills Wing gliders, the bridles also
affect pitch stability and pitch bar pressures within the flight range at certain VG settings.
