Dynaflite DYFA3040 - Manual (Page 29)

Q 5. Fit the two die-cut 1/8" ply wing bolt plates
for the wing bolt holes onto the bottom of the
wing. Glue these into position over the holes with
6-minute epoxy.
l—l 6. Enlarge the wing bolt holes in only the
wing with a 17/64" bit, drilling through the 1/8"
ply plates as well.
I—I 7. Fiberglass both sides of the center of the
wing with 3" tape (included). Put a small patch
around the wing dowels as well.
Q 8. After the fiberglass has dried, put some
Plan Protector on the center of the wing at the
leading and trailing edges where they will touch
the fuselage. Bolt the wing to the fuselage with
the 1/4-20 nylon bolts.
[-I 12. Glue doubler DB to the front of bulkhead
D. Align DB 3/32" above (towards the top of the
fuselage) the TE of the wing to allow for the
3/32" balsa sheeting that will be added to the
bottom of the fuselage.
Q 13. Remove the wing from the fuselage.
Make any adjustments needed to the trailing
edge of the wing where it fits to DB.
CAUTION: Read and study steps 1 - 5 before
doing anything!
Q 9. Use leftover 1/8" ply to make a bulkhead
for where the leading edge of the wing meets
the fuselage. First fit it to the bottom surface of
the wing, then use a pencil to draw the outline
where it meets the fuselage. Now trim this
bulkhead to shape allowing for the 3/32"
sheeting that will be used to fair the wing with
the fuselage.
Note: The above photo shows how the wing
should look after you finish step 11.
Q 10. Position the bulkhead back on the wing.
When satisfied with the fit, glue it to the
WING ONLY.
Q 11. Cut and fit 3/32" balsa from leftover wing
sheeting to smoothly fair the wing with the fuselage.
Glue the sheeting to the former and wing.
Q 1. Use the 3/8" x 3/8" x 30" balsa stick to cut,
fit and glue filler strips between formers DB and
EB, EB and FB and between former FB and the
lower longeron on both sides of the fuselage as
shown in the photo. These strips are used as a
place to glue the side sheeting to and also form
a filler block for sanding to shape where the
bottom sheeting meets the side sheeting.