Dynaflite DYFA3030 - Manual (Page 14)

14
❏ ❏
36. Glue the 1/8" die-cut ply dowel support
in place to the back of the leading edge between
ribs W1 and W2. Sand the top of the LE to the
airfoil shape of the ribs.
Return to step 3 and build the right wing panel.
Use the other half of the wing plan. Remember -
build a right and left wing panel.
❏
1. Mark a centerline on both the forward and aft
dihedral braces. Trial fit the dihedral braces into
each wing half and make adjustments if needed.
❏
2. Make a block to support the wing halves while
they are being joined. A balsa or pine block 2-1/4"
high works well.
❏
3. Without using any glue, join the wing halves
with the dihedral braces. Place the wing on the
support block upside down. The tops of the W5 ribs
should just touch the building board. Make
adjustments as necessary.
NOTE : The dihedral angle is 3-1/2 degrees for each
wing half, but this is not at all critical. It is, however,
important that the joint at the root ribs fits well and
that the dihedral braces are solidly joined.
❏
4. Cover your building board with wax paper.
Coat the dihedral braces, root ribs and spars with
30-minute epoxy wherever they will touch each
other. Fit the wing halves together and securely
clamp the dihedral braces to the spars. Place the
wing on the support block and make any final
adjustments. Have a cup of coffee while you wait for
the epoxy to cure.
❏
5. Glue the 3/32" x 3" x 36" balsa Bottom LE
Sheeting onto the spar, ribs and leading edge using
medium CA or Aliphatic Resin. The photo shows just
one side being sheeted but you will be sheeting both
sides of your joined wing. Place the wing back on
the support block while the glue dries and check that
it is straight.
JOIN THE WING HALVES