Great Planes Spirit 100 Sailplane Kit - GPMA0550 - Manual (Page 11)

shorter than the panel so you will have to do approx half the ribs
then move the spar down to do the rest of the ribs
D D 10 Unpin the wing panel from the work surface and
hold a metal straight edge against the front of the ribs Allow the
panel to tip up so the front edge of the sheeting is flat on the work
surface and use an Xacto knife to carefully cut the sheeting off
flush with the from edge of the ribs Use a sanding block to
remove any "bumps" but be careful not to sand any dips into the
sheeting or sand the ribs
D D 11 Position a Pre-Shaped Balsa Leading Edge
(SPT 1 W 14) in place against the front of the ribs NOTE: 1 these
leading edges are NOT symmetrical. Refer to one of the section
views on the plans to determine which way they should be
installed Carefully hold the leading edge against one of the end
W2S ribs and note that it is wider than the front of the rib This
is because the 1/16 balsa leading edge top sheeting will be added
later Align the lower surface of the leading edge with the bottom
of the lower LE sheet and glue it in place with a drop of thin CA
Align the other end of the leading edge with the bottom of the
opposite end W2S and glue it with a drop of thin CA Go down
the line and glue the remaining ribs to the leading edge, one at a
time, so you can make sure they are aligned Make sure the LE
sheeting is flush with the bottom of the LE and add CA between
the ribs Do not glue the sheeting to the LE past the last W2S ribs
yet.
IMPORTANT - MAKE SURE THE W I N G
PANEL REMAINS ABSOLUTELY FLAT
DURING THE NEXT STEP!
DD 12 Locate the 1/16" Balsa Shear Webs (SPT1W24)
Trial fit one of the webs in place between the first and second
W2S ribs Glue the shear web in place on the back of t h e spars
using med or thick CA The web should be pressed down against
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