SIG Cessna L-19 Bird Dog Assembly Instructions Manual Download Page 3

Building the Tail Surfaces

 
1.

 
Cover the plan with wax paper.

 
2.

 
Build the stabilizer using parts S-1, S-2 and S-3. The remaining structure is made from 3/32" sq. balsa and 3/32" x 1/3" 
balsa.

 
3.

 
Build the rudder using parts R-1, R-2, R-3, R-4 and R-5. The remaining structure is made from 3/32" sq. balsa.

 
4.

 
Sand the tail surfaces smooth and round the edges. Set the tail surfaces aside until needed later.

 

Building the Fuselage

 
5.

 
Build the fuselage side frames over the plan using the laser cut part F-1. The remaining pieces of the side frames are made 
from 3/32" sq. balsa strip.

 
6.

 
Join the left and right halves of F-2 over the plan. Glue the 3/32" sq. strip to the top as shown on the plan.

 
7.

 
Join the left and right halves of F-3 over the plan. Glue the two 3/32" sq. strips into position as shown on the plan.

 
8.

 
Glue the 3/32" sq. strips to F-4 in the position shown on the plan.

 
9.

 
Glue F-2 to the right fuselage side. The 3/32" sq. strip on F-2 should face the rear and the former should be 90 degrees to 
the fuselage side.

 
10.

 
Glue F-3 and F-4 into position on the right fuselage side. The 3/32" sq. braces on the formers should face forward and the 
formers should be 90 degrees to the fuselage side.

 
11.

 
Glue the left fuselage side to formers F-2, F-3 and F-4. The formers should be 90 degrees to the fuselage side.

 
12.

 
Glue F-8 into position on the front of the fuselage.

 
13.

 
Glue formers F-6 and F-7 into position.

 
14.

 
Glue F-9 and F-10 into position.

 
15.

 
Glue F-10A into position.

 
16.

 
Pull the rear of the fuselage together and glue F-21 into position. Make sure that the fuselage is not twisted and that F-21 is 
vertical and not leaning left or right.

 
17.

 
Gently crack the fuselage longerons immediately behind F-4. Glue F-14 and F-15 into position and then apply glue to the 
cracked area of the longerons.

 
18.

 
Glue F-16, F-17, F-18, F19 and F-20 into position.

 
19.

 
Glue F-5 Left and F-5 Right to formers F-2 and F-3. Crack the top at the horizontal score line and pull the tops into contact 
with the formers and glue into position. Crack the top rear at the vertical score line and bend the aft ends of the two cabin 
sides into contact with F-4 and glue into place.

 
20.

 
Glue F-22 into position.

 
21.

 
Glue the 3/32" sq. stringers into position on the top of the nose between F-5 and F-6.

 
22.

 
Glue the 3/32" sq. stringers into position on the bottom of the nose between F-5 and F-10.

 
23.

 
Glue the 3/32" sq. stringers into position on the top rear fuselage between F-14 and F-20.

 
24.

 
Glue F-11 into position.

 
25.

 
Bend the landing gear wire to the shape shown on the plan.

Summary of Contents for Cessna L-19 Bird Dog

Page 1: ...r Shaft 2 Brass Washer 1 Nylon Propeller Bearing 2 1 375 Plastic Wheels 2 1 16 Plastic Wheel Retainers 1 3 16 x 60 Rubber Strip 6 Laser Cut Sheets Tools and Building Supplies You will need the following items to assemble this model You must read and follow all of the manufactures instructions provided with these items Glue CA White Glue Sigment or Ambroid all work well Cutting Tools A hobby knife ...

Page 2: ...llowing pages as a guide It is possible that several of the laser cut parts may not be completely cut through If this is the case you can free the part from the sheet quickly using an X acto knife NOTE The slight discoloration on the edges of the laser cut parts may be removed by lightly sanding the edges with 400 grit sandpaper ...

Page 3: ...to the fuselage side 11 Glue the left fuselage side to formers F 2 F 3 and F 4 The formers should be 90 degrees to the fuselage side 12 Glue F 8 into position on the front of the fuselage 13 Glue formers F 6 and F 7 into position 14 Glue F 9 and F 10 into position 15 Glue F 10A into position 16 Pull the rear of the fuselage together and glue F 21 into position Make sure that the fuselage is not tw...

Page 4: ...edral gauge to the plan and rest the rib against it so that the top edge of the rib angles toward the wing tip Glue the rib to the leading edge the trailing edge and the bottom spar When dry remove the dihedral brace and save it for use on the right wing 39 Glue the remaining ribs W l through W 6 into position These ribs should be 90 degrees to the building board 40 Glue the wing tip into position...

Page 5: ...he hardware provided 65 Glue the propeller assembly into the removable nose block Be sure to use the correct amount of down and right thrust 66 Tie and install the rubber motor using the 3 16 dowel at the rear end to retain the rubber motor 67 Balance the model at the point shown on the plan Add weight to the nose or tail as required to achieve the proper balance 68 Your model is now complete You ...

Page 6: ... damaged buy use or modification In no case shall Herr Engineering Corporation s liability exceed the original cost of the purchased kit Further Herr Engineering Corp reserves the right to change or modify this warranty without notice In that Herr Engineering Corporation has no control over the assembly or use no liability shall be assumed or accepted for any damage resulting from the use by the u...

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