Carl Goldberg GBGA0067 User Manual
Page 14

13. Using the wing-tip side of Rib #4 as a guide, cut
through the trailing edge sheeting.
14. Cut a 1/8 x 1/4” balsa aft spar to a 10-3/4” length
and butt one end against Rib #4.
Glue to the T.E. sheeting along the edge of the
rear line, as shown.
15. Using 5/64” scrap balsa as a spacer, glue an
AILERON RIB to the aft spar and the T.E. sheet.
16. From D/C sheet 6723, take an AILERON HORN
BACK-UP, marked “D” an glue it to the T.E.
sheeting, in line with the aft spar.
17. Using the long side of the rib spacing gauge,
locate ribs #5 through #9, gluing each of them to
the T.E. sheet.
NOTE: Make sure that the ribs are parallel to the
ribs on the plan, before gluing.
18. With the long side of the rib gauge, locate the
cut-off mark on the back of the aft spar, and cut.
Install Rib #10.
14
RIB #3
RIB #3
RIB #4
RIB #4
STARTING HERE
WING TIP
WING TIP
RIB SPACING GAUGE
AFT SPAR
5/64" SCRAP
CUT
AFT SPAR
10-3/4"
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