Hangar 9 ULTRA aspire, Instruction Manual

Page: 7 / 40

7
Section 1: Joining the Wing
• Right wing panel
• Left wing panel
• Hardwood wing joiner (dihedral brace) • 30-minute epoxy • Ruler
• Rubbing alcohol • Pencil or felt tipped pen
• Paper towels • Mixing stick/epoxy brush
• Masking tape • Medium sandpaper
• Wax paper
Step 1. Locate the two wing panels and the hardwood wing
joiner. Using a pencil and ruler, measure and mark the center of
the “V” section of the hardwood wing joiner (dihedral brace).
This mark will serve as the centerline when joining the two wing
halves. Note that the outer wing panels have already been
attached at the correct polyhedral angle on each wing half.
Step 2. Trial fit the wing joiner (dihedral brace) into one of the
wing halves. It should insert smoothly up to the centerline
marked in Step 1. Now slide the other wing half onto the wing
joiner until the wing halves meet. If the fit is overly tight, it may
be necessary to lightly sand the wing joiner so the wing halves
fit together properly.
Step 3. Check for the correct dihedral angle. Place the wing
on a large, flat surface with one wing half resting on the surface.
The opposite wing half should be at 3
3 /
16
” as measured where
the outer and inner wing panels meet on the wing half. See
picture below. If necessary, sand the wing joiner until this
is achieved.
Note: Before epoxying the wing halves together, it’s a good
idea to make a brace that can be placed under the
wing to hold it at the 3
3 /
16
” dihedral angle while the
epoxy cures. It’s also a good idea to place wax paper
under the wing center so the epoxy does not adhere to
the work surface.
Step 4. Separate the wing halves and remove the wing joiner.
If you’re satisfied with the fit of the wing halves, you can
prepare to epoxy the two halves together.
Step 5. Mix up approximately 1 ounce of 30-minute epoxy. It’s
helpful to place wax paper under the wing to prevent epoxy from
dripping onto your workbench.
Parts Needed Tools and Adhesives Needed