FRONT RIB ASSEMBLY
REAR RIB ASSEMBLY
CROSS SECTION
DRAW LINES WITH PEN CONNECTING
RIB ALIGNMENT INDENTS IN WING AND
GLUE RIBS BETWEEN LINES
NEXT GLUE 6-MIL
LANDING GEAR
REINFORCEMENT
PIECES TO BOTTOM
OF WING BETWEEN
RIBS
LEFT WING INSIDE BOTTOM
6-MIL L.G. REINFORCEMENT PIECES
FIGURE 21 - INSTALLATION OF RIBS AND LANDING GEAR REINFORCEMENT PIECES
RIGHT WING INSIDE BOTTOM
3.17 Locate the pin holes for the ribs on the wing bottoms and, using a straight edge and ball point pen, connect them
to locate where the ribs will go. Using contact cement, glue the ribs in place on the wing bottom. (If you are building a Turbo
wing, you should have used the trimmed-off center sections of the wing as a template to mark new "pin holes" for the ribs.)
3.18 Locate the 6-mil landing gear wing reinforcement pieces. These heavy-duty parts glue between the ribs at the
root and provide support for the mounting of your landing gear. If you are building a nose gear plane, your gear will mount
aft of the spar and attach with bolts through the 6-mil piece. If you are building a tail dragger, your gear will mount forward
of the spar. Regardless of which type of gear you intend to install, we recommend installation of both 6-mil pieces, so that
you can mount floats and other accessories to the wing bottom later. Trial fit the 6-mil pieces to the root area and trim if
necessary. Using contact cement, glue the 6-mil reinforcement pieces to the inside bottom of the wing, between the ribs.
TRIAL FOLD THE WING
3.19 Using a ball-point pen and straight edge, mark
the location of the bottom trailing edge along the top of
the hinge strips. This locates the bottom trailing edge of
the wing for you to line up with when folding up the wing.
ALIGNMENT STRIPS
EXPOSED
HINGE
LEADING
EDGE
SCORES
3.20 Starting with the right wing, on a FLAT work
surface, trial fold the wing, being careful to fit the top of
the spar between the alignment strips in the top of the
wing. Use a hair dryer again to rewarm the wing scores
if necessary.
BUILDER'S HINT - YOU MAY NEED ASSISTANCE IN THIS STEP TO
HELP WITH ALIGNMENT.
THE TOP TRAILING EDGE OF THE WING SHOULD FIT EXACTLY
AGAINST THE BOTTOM TRAILING EDGE OF THE WING AND ALONG
THE INNER EDGE LINE YOU HAVE DRAWN ON THE TOP OF THE
HINGE STRIP.
GLUE TOP OF SPAR
WARM LEADING EDGE
SCORES IF NECESSARY
WITH HAIR DRYER PRIOR
GLUE
TO FOLDING
SPAR
GLUE
AILERON
FIGURE 22 - FOLD AND GLUE THE WING
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