Great Planes P-51D Mustang 40 Kit - GPMA0175 - Manual (Page 34)

lightweight balsa filler as needed to reinforce any thin spots
or holes you may have exposed when sanding.
D 11. Remove the engine, and cut off the lower half of the
spinner ring.
D 12. If your engine will be "side mounted," trim a semi-
circle in the upper cowl to clear the engine head. Also provide
clearance for the carburetor and needle valve as needed.
D 7. In the same manner, fit and glue the 1/4" balsa upper
cowl top between F-l and the spinner ring. Again, the cowl
top should be approximately 1/16" above the front deck top
block and the spinner ring.
FINAL ASSEMBLY
INSTALL FRONT WING FAIRING
D 8. Use a sanding block to bevel the edges of the cowl
sides and cowl top to a 45-degree angle. Sand deep enough
so the comer blocks will be approximately 1/16" above the
deck at F-l, and 1/16" above the spinner ring.
D 1. Carve and sand the 1" x 2-3/4" x 4-1/16" tapered
balsa front fairing wedge to fit the front of the wing. NOTE;
It is difficult (and not necessary) to carve this block to mate
exactly with the wing; therefore, you should just "rough it
out", then later you can fill any gaps with balsa filler.
D 9. Sand the ends of the 1/4" x 1-3/4" x 4-7/8" balsa
sheets to fit between F-1 and the spinner ring, then glue them
in place as shown.
D 10. Sand the upper cowl to blend with the fuselage and
your spinner backplate. Add scrap pieces of balsa and
D 2. With the wing in place on the fuse, hold the front
fairing in place (allow 1/32" gap between the fairing front and
the rear of F-2A) and tack glue it to the wing. CAUTION:
Use extreme care to avoid gluing the wing to the fuselage!
D 3. Remove the wing and securely glue the front fairing
block to the wing. Fill all gaps with balsa filler. After the
filler has dried, replace the wing on the fuse and sand the
fairing block to smoothly blend the wing to the fuselage and
chin block.
ASSEMBLE AIR SCOOP FRONT (On Wing)
You'll need the following parts:
Die-cut 1/8" ply F-4A
Die-cut 1/8" balsa F-3B. F-3C. Scoop Sides (2)*
1/4" x 1/4" balsa stick
3/32" balsa sheet
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