SIG HRR111, Assembly Instruction Manual, Page: 4 / 9

.
Building the Fuselage
1.
Pin the fuselage plan to the building board and cover it with wax paper.
2.
Build the right fuselage side frame over the plan using 3/32" sq. balsa and parts F-1, F-2, F-3, F-4, F-5, F-6, F-7 and F-8.
There are two F-1's on each side frame. A short line indicates the top of parts F-2 through F-6.
3.
Build the left fuselage side frame over the plan just as you did the right side frame.
4.
Assemble two stabilizer caps over the plan using 3/32" sq. balsa strip.
5.
Glue 3/32" sq. balsa cross braces to the rear faces of formers F-4 and F-9.
6.
Pin the front of the fuselage side frames into position on former F-9. Pin former F-4A into position and pull the rear of the
side frames together and hold with a cloths pin. Carefully align the fuselage assembly without any twists and make sure the
tail post is perpendicular to the top of the fuselage sides. Now glue F-4 and F-9 into position.
7.
Carefully put F-6A and F-6B into position and after checking the fuselage alignment, glue them into place. Now glue the
rear ends of the fuselage side frames together and remove the clothes pin.
8.
Position and glue formers F-2A, F-3B, F-5A and F-5B into position on the fuselage.
9.
Glue the two stabilizer caps into position.
10.
Build the fin over the plan using parts R-1, R-2 and 3/32" sq. strip.
11.
Glue the fin to the fuselage.
12.
Glue the two F-10's into position.
13.
Glue the 1/16" sq. stringers into position on the top rear fuselage between F-4 and F-6A.
14.
Glue the two 1/16" sq. stringers to each side of the fuselage.
15.
Glue the 1/16" sq. stringers into position between F-9 and F-3B. Glue the 1/16" sq. stringers to the bottom of the fuselage
between F-9 and F-2a and between F-4 and F-6B.
NOTE: Leave the stringers out from between F-2A and F-4. These will be added after the wing and fuselage are covered
and joined.
16.
Glue the cockpit sides together over the plan. Now glue the cockpit sides into position on the fuselage between F-3A and F-
4. The cockpit sides should be flush with the edges of these two formers.
17.
Glue the two F-11 pieces together and then glue them to the front of F-9. Glue F-12 to the front of F-9 being careful to
maintain 1/16" gap between F-12 and F-11 for the landing gear wire.
18.
Bend the 1/16" Dia. landing gear wire to the shape shown on the plan and test fit in the slot on the front of the fuselage.
19.
Sand the fuselage smooth and blend parts F-1 into the rest of the fuselage structure.
NOTE: F-3A and the two 1/16" sq. bottom stringers are glued into position after the fuselage and lower wing are covered
and joined.
Building the Cowling
20.
Pin parts C-1 and C-2 to the plan. Glue formers C-2 and C-3 into position making sure that they are 90 degrees to the
building board. Now glue part C-5 into position.
21.
Glue eight 3/32" sq. stringers into position between C-3 and C-4.
NOTE: The bottom two stringers immediately above C-2 are not glued into position until part C-6 is added in a later step.
22.
Remove the cowling from the plan and add the opposite side C-4, C-3, C-5 and the 3/32" sq. stringers.