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Tail construction – Carl Goldberg GBGA0059 User Manual

Page 6

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TAIL CONSTRUCTION

1. ‡ Collect the following items.

(4) 3/16 x 3/8 x21” BALSA

PT. #4853

(1) 1-3/4 SQ. x 21” BALSA

PT. #4696

(3) 5/64 X 3/16 X 24” BALSA

PT. #4698

(1) 1/2” SQ. x 8-1/4” BALSA

PT. #4701

(1) CENTERLINE MARKER

PT. #1425

(7) SMALL FLEX-POINT HINGE

PT. #1448

(1) FIN HINGE POST

PT. #4560

(1) .034 ID / .064 OD x 36" TUBING

PT. #5682

(2) D/C SHEET 5903 BALSA

PT. #3403

containing fin parts #1 and #2

(1) D/C SHEET 5904 BALSA

PT. #3404

containing: fin bottom, rudder,

dorsal fin, stap tips, stab L.E. joiner

gussets, stab center platform

(1) D/C SHEET 5907

PT. #3407

(1) D/C SHEET 5906 BALSA

PT. #3406

containing: fin parts #3, #4, #5, #6

(2) D/C SHEET 4014 PLY

PT. #3614

2. ‡ Lay the horizontal stabilizer portion of the plan

over the building board and cover with waxed

paper.

‡

Buidling over the plan, pin in position and glue

the leading edge joiner to the center platform.

5. ‡ Still working over the plan, and using the tech-

nique shown above, cut 5/64 x 3/16” balsa

sticks to form stab trussing. Trim carefully to

size, so that each truss fits in place without

forcing. SAVE THE SCRAP MATERIAL!

6. ‡ When satisfied with the fit, glue in place.

‡

Glue the gussets in place and allow the entire

stab to dry thoroughly.

7. ‡ Referring to the plan, mark the hinge locations

on the top of the trailing edge with a soft pen-

cil.

‡

Using 3 or 4 drops of Super Jet™, tack-cement

the elevator to the stab.

‡

Carefully transfer the hinge location marks

onto the elevator.

3. ‡ Carefully cut two 3/16 X 3/8” balsa sticks to

form the stabilizer leading edge. Make sure to

exactly match the plan from the center mark to

the tips.

IMPORTANT! SAVE SCRAP MATERIAL FOR USE IN

CONSTRUCTING THE FUSELAGE.

‡

Pin the pieces in position and glue at the cen-

ter joint.

4. ‡ Using additional 3/16 x 3/8” balsa sticks, con-

tinue building the stab outline by pinning and

gluing the trailing edge and stab tips in place,

as shown above.

GUSSET

8. ‡ Using a sanding block, flat sand the stab and

round the outer edges. Sand the elevator tips

to blend with the stab.

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