Great Planes Spirit 100 Sailplane Kit - GPMA0550 - Manual (Page 42)

the wing is the major factor on a sailplane, we will only be
concerned with it Here is how to do it D 3 Rubber band or bolt the wing onto the fuse making sure
it is square and centered with respect to the fuse
D 1 Assemble the wing and set it on a flat surface with both
wing tips level Let go of the wing and notice which wing tip
drops Do this several times and if the same wing tip keeps
dropping push a thumb tack or small nail through rib W10 into the
wing tip that keeps rising
D 2 Perform this test several times until the wing balances or
the same wing tip does not drop every time and then glue the tacks
or nails in place with a drop of thin CA
D 4 Position the stabilizer on the fuse and align the center line
with the joint between the two fuse sides at the rear Adjust the
front of the stab until the centerline is pointing straight at the nose
of the plane Look at the plane from the front to make sure both
the wing and the stab are level with the work surface Adjust the
stab bed and/or the wing saddle until both are correct
MOUNT THE TAIL SURFACES
D 1 Gently sand the stab saddle area to remove any bumps or
rough areas Keep both the fuse and the sanding block level with
the work surface while doing this
D 2 Use a drafting triangle to draw a line down the middle of
the stab Use the center joint between the two LE as the center
point
D 5 Glue the stabilizer to the fuse with med or thick CA or
epoxy Check its alignment with the wing while the glue is curing
to make sure they are level with each other
D 6 Insert the fin LE into the slot on the fuse top and position
the fin in place on top of the slab The LE should extend out the
slot in the fuse bottom Check to make sure the f i n is both vertical
to the stab and pointing directly at the nose of the plane Glue the
fin in place on top of the stab using either med or thick CA or
epoxy
D 7 Cut and sand the fin LE flush with the fuse bottom
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