Great Planes P-51D Mustang 40 Kit - GPMA0175 - Manual (Page 37)

hold or pin in proper alignment until the glue has firmly
set. Wipe off any excess epoxy before it sets up.
D 6. From the 3/8" balsa triangle supplied, cut and se-
curely glue fillets under the stab, at the stab/fuse joint. SHAPING AND SANDING
D 7. Trial fit the fin on the stab. The fin trailing edge
must line up with the aft end of the fuselage.
D 8. Carefully align the fin on the stab. The fin must be
positioned perpendicular to the stab and must line up with
the fuselage centerline EXACTLY! Securely glue the fin in
place with epoxy.
D 9. From 1 /4" balsa scrap, cut a filler to fit between the
fin leading edge and the aft edge of F-6. The top edge of this
filler should be on the same line as the top of the aft deck.
D 10. Glue the 1/4" balsa dorsal fin in place on the aft
deck. The dorsal fin, like the fin, must also line up with the
fuselage centerline. Sand the dorsal fin to a rounded shape,
and blend it to the fin with balsa filler.
D 1. Using a sanding block and 80-grit sandpaper, sand
the fuselage comers to a rounded shape. Refer to the cross-
sections on the fuse plan, and try to sand the corners to the
same shape as shown on the plan. Pay special attention to the
fuse shape at F-l, as you will be fitting the cowl to this area
later.
D 2. With the wing installed, sand the air scoop comers to
a rounded shape, and blend the front portion of the scoop with
the aft portion. Also, sand the comers of the wing fairing
wedge to blend smoothly with the bottom front comers of the
fuselage.
D 3. Vacuum the entire structure thoroughly, then in-
spect for any poorly glued joints and gaps. Apply additional
glue and/or balsa filler as necessary, then sand the entire
fuselage and wing smooth.
INSTALL PUSHRODS AND RADIO
COMPONENTS
D 1. Study the plans to determine the location of the
aileron servo cutout. Mark the location on the top of the
wing and cut an opening in the fiberglass and sheeting slightly
larger than your servo. CAUTION: Do not cut into the wing
spars or shear webs!
D 11. Shape another small 1/4" balsa scrap to blend the
dorsal fin into the fin leading edge as shown on the plan.
D 12. Find the two 3/8" x 1/2" x 4-1/8" balsa blocks, and
sand them as shown on the plan and in the photo to make the
fin fillets. The fillets should blend smoothly with the aft
deck. Securely glue the fillets in place on both sides of the fin.
The photo for this step is at the top of the next column.
37