RC Groups North American P-64 SEMFF Combat Plane Build Manual page 11

Step 7a. Add Horizontal Fuselage
Doubler
Moisten Main
Assembly and
apply glue to the
Horizontal
Fuselage Doubler.
Tape in place
Note: All parts are
keyed together
and we will need to
assemble the
entire lower
fuselage at this
time. So have all
parts ready to
install. If you wait
too long, foaming
of glue may create
obstructions in
alignment slots.