Great Planes Cherokee Kit - GPMA0180 - Manual (Page 7)

5. D PREPARE BULKHEADS #1,2 and 4
Draw centerlines down each Bulkhead, front and
rear. Mark and drill holes in Bulkhead #1, the Firewall, for
engine mount, fuel lines, steering and throttle linkage and
nosegear bearing. Install the 6-32 Blind Nuts for the
motor mount screws and the 4-40 Blind Nuts for the nosegear
bearing screws.
6. D PREPARE REAR BULKHEADS #5,6, 7 AND 8
Make Bulkheads #5,6,7 and 8 from 18" x 1/4" x 36"
Balsa Stock provided. Build the Bulkheads over the plans.
Build accurately as these Bulkheads determine the shape
of the rear of the Fuselage. Also make pushrod braces
from 3/32" Doubler stock or scrap. The widths of the
braces are the same as the Bulkheads. These braces will
be installed when the pushrod housings are added.
7. D GLUE THE TWO PARTS TOGETHER
The two piece Balsa parts are the 1/8" Cabin Base,
the 1/2" Rear Cabin Top, the 1/2" front Cabin Top, the Cowl
Top Block and the 3/8" Tank Bottom Block. Glue these
pieces using the white glue/tape method described earlier.
Sand the pieces if necessary at the glue joint after the
glue is dry.
8. D MARK ALL BULKHEAD POSITIONS ON THE TOP
AND BOTTOM OF THE CABIN BASE
Draw a centerline down the 1/8" Cabin Base. Mark all
Bulkhead positions (#2, 4, 5, 6, 7 and 8) on the Cabin Base.
This is now the bottom of the Cabin Base. Now turn the
Cabin Base over and mark the upper Bulkhead positions
(#2A, 3A, 4A, 5A, 6A, 7A and 8A). This is now the top of the
Cabin Base. Note that the Cabin Base butts to the Firewall.
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