M
ARK the position of the wing bolt hole
on the bottom of the wing. The hole
needs to be approximately centered on the F-
9 wing mounts. We prefer to make the hole
along the side of the dihedral joint instead of
on the exact center, to avoid drilling through
the epoxy.
Align the wing on the fuselage carefully.
Check the alignment by measuring from each
wingtip to the centerline at the aft end of the
tailboom. The dimensions on the right and
left sides should be identical.
Drill the hole through the wing and the F-9’s
using a number 29 drill. The hole should be
approximately perpendicular to the F-9 parts.
If you do not have a #29 drill, use a
1
⁄
8
" drill, and enlarge the
hole slightly with a knife or file.
G
LUE the the two F-9 aft wing mounts
together, using epoxy or thick CA glue.
When cured, glue them into the fuselage as
shown on the plans. Note that they are about
1
⁄
16
" above the top of the wing. Use epoxy, and
apply a fillet along the entire joint.
Place the wing in position on the fuselage
and mark the location of the wing dowel on
the leading edge. Drill a
3
⁄
16
" hole through the
leading edge. This is somewhat tricky, since
the drill will tend to wander off center
because of the epoxy in the dihedral joint,
but do the best you can. Trim the dowel to
length, and radius the front end with sandpa-
per. Chucking the dowel in an electric drill
and spinning it while sanding the radius works very well.
Insert the dowel in the wing and position the wing on the
fuselage. If necessary, use a file to enlarge the dowel hole in
the wing until the wing fits properly in its saddle.
Remove the dowel and fill the hole with an epoxy and
microballoon mixture. Insert the dowel and wipe off any
excess epoxy. Place the wing on the fuselage, align carefully
and allow the epoxy to cure.
Install F-9’s
Drill wing for dowel
Glue dowel in place
Check alignment
Phoenix
Page 21
Final Assembly
Install wing mounts
Mark hole position on wing
Align wing on fuselage
Drill hole through wing
Drill for wing mount bolt
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