Section 2: Joining The Wing Halves - Hangar 9 PT-19 Instruction Manual

Section 2: Joining the Wing Halves

Parts Needed
• Right/Left wing panels
• Plastic wing bags (optional)
• Dihedral brace
Step 1. Locate the dihedral brace (also called the wing joiner).
Using a ruler, determine the center of the brace and mark it with
a pencil.
Step 2. Trial fit the dihedral brace into one of the wing panels.
It should insert smoothly up to the center line marked in Step 1.
Now slide the other wing panel onto the dihedral brace until the
wing panels meet. If the fit is overly tight, it may be necessary to
sand the dihedral brace. Check to make sure the alignment of
the wing is accurate.
8
Tools and Adhesives Needed
• 30-minute epoxy
• Epoxy brush
• Masking tape
• Rubbing alcohol
• Paper towels
• Wax paper
• Ruler
• Pencil
• Medium sandpaper
• Mixing stick
Step 3. Check for the correct dihedral angle. Place the wing on
a large flat surface with one wing panel resting on the flat sur-
face. The opposite wing tip should be at 6
surface (Note: That's at the last rib, without the tip section; see
illustration below). If necessary, sand the dihedral brace until
this is achieved.
Note: It's a good idea to make a gauge that can be placed
under the wing to hold it at 6
halves together.
Step 4. Separate the wing halves and remove the dihedral
brace. Once you're satisfied with the trial fit of the wing panels,
you can prepare to epoxy the wing panels together.
Step 5. Note: Use the plastic wing covers as a means of keep-
ing epoxy from smearing on the wings. Just slip one on each
panel and use masking tape to hold in place.
Mix up approximately one ounce of 30-minute epoxy. It's helpful
to have some wax paper handy to prevent epoxy from dripping
on your workbench top. Note: It's extremely important to use
plenty of epoxy.
tape
1 / " in height from the
4
/
6 1 "
4
at last rib without
tip section
1 / " when epoxying wing
4
wing bag