Great Planes P-51 Mustang Sport Fighter .46 EP ARF - GPMA1208 - Manual (Page 19)

19
INSTALL THE COWL
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1. Install the canopy top onto the fuselage.
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2. Slide the cowl over the engine, making marks where
you need to cut clearances for the cowl. Cut clearance in the
cowl for the muffl er, needle valve, muffl er bolt access, etc. as
needed for your engine.
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3. With the cowl cut outs completed, place 2-1/2" [64mm]
pieces of tape to the plywood mounting tabs extending back
towards the fuselage. Mark the location for the mounting hole,
centered on the “tab” and then draw a line back from the mark
1-1/2" [38mm]. Do this for all four pieces of tape.
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4. Position the cowl on the fuselage so that the drive
washer extends in front of the cowl approximately 1/8" [3mm].
From the marks on the tape measure forward 1-1/2" [38mm].
Drill a 1/16" [1.6mm] hole through the cowl and the plywood
mounting tab. Secure the cowl with a 3/32" x 3/8" [2.5 x
10mm] washer head screw. Double check the position of the
cowl and do the same for another of the mounting holes. Do
this for all four mounting holes.
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5. Install the muffl er onto the engine. Access holes for
the bolts need to be provided on the left side of the cowl to
mount the muffl er.