GREAT PLANES RV-4 Instruction Manual page 32

9.From leftover 3/32" [2.4mm] balsa sheet, cut a piece to
fit on top of BK and IP as shown.
10. Attach the wing to the fuselage. Place the stab in
place on the stab base at the back of the fuselage. Stand
back 9' to 15' [3 to 5m] and view the airplane from the rear.
The distance between the wing and the stab must be equal
on both sides of the stab. If the stab is not in line with the
wing, sand the high side of the stab base until the wing and
stab are aligned with each other. Remove the wing when
everything is aligned.
11. From the 1/4" x 1/2" x 6" [6 x 63 x 152mm] balsa stab
block, make a plate that is the same size as the stab saddle.
When you have it done, draw a line down the center of the
stab plate.
12. Glue an additional 1/4" x 3/4" [6 x 19mm] balsa stick
to the base centered on the line you have drawn. The stick
needs to be perpendicular to the base. Sand the top of the
stick to match the rear turtledeck.
13. Set this fixture in place on the stab base.
14. Locate the 3/4" x 3/4" x 12" [19 x 19 x 305mm] balsa
block. Cut it into two 6" [152mm] lengths. Glue the end of the
block to fuselage former F7A. IMPORTANT! Glue only the
end of the balsa blocks to F7A. Do not glue the balsa blocks
to the fixture! The fixture will be removed later and it must be
able to slide out from under the blocks.
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