Tail construction – Carl Goldberg GBGA0059 User Manual
Page 6
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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