SIG Award Winning Model Designs P-51D Mustang Assembly Instructions Download Page 3

Building the Fuselage

 
5.

 
Build the fuselage side frames over the plan using the laser cut parts F-A and one F-B. The remaining pieces of the side 
frames are made from 3/32" sq. balsa strip. Splice the top longeron as shown on the plan.

 
6.

 
Lay the side frames on top of each other and pin the tail posts together. Position and glue #3 into position. Glue the 3/32" 
sq. cross piece at the front of the wing opening.

 
7.

 
Glue pieces 4, 5, 6, 6A, 7, 7A, 8, 8A, 9 and 9A into position. Now glue the tail posts together.

 
8.

 
Glue pieces 2, 2A and 1 into position. Glue B-1 into position. Glue the canopy frame into position.

 
9.

 
Glue the 3/32" sq. stringers in to position on the top and bottom of the nose.

 
10.

 
Glue the 1/16" sq. stringers into position on the top and bottom rear of the fuselage.

 
11.

 
Glue the three N pieces to the nose of the model. Glue the four B-2 pieces together and sand the angle onto the front to 
match the side view on the plan. Now glue them to the front of B-1.

 
12.

 
Glue the 3/32" sq. side stringers to each side of the fuselage.

 
13.

 
Make the nose block by gluing the pieces N-1 and N-2 together.

 
14.

 
Insert (do not glue) the nose block on the front of the model. Laminate a second part F-B onto the outside of the ones on 
the side frames. Sand the nose of the model to its final shape and sand the fuselage smooth all over.

 
15.

 
Trim the canopy and test fit to the model. 
 
NOTE: Do not cut the support from between the wing saddle and the belly scoop until after covering.

 

Building the Wings

 
16.

 
Build the center section first. Pin the 3/32" x 3/16" leading and trailing edge to the plan.

 
17.

 
Pin the lower 3/32" sq. spars onto the plan. Glue ribs W-1 and W-2 into position. Glue the gussets G-1 and G-3 into 
position.

 
18.

 
Glue the 3/32" sq. spar to the top of the center section. This spar should extend past W-2 by about 1/4" on each side. 
Remove the center section of the wing from the plan. 
 
NOTE: Do not put the 1/16" sq. leading edge spars in place until after joining the wing.

 
19.

 
Build the left wing panel over the plan. First pin the 3/32" x 3/16" leading edge and trailing edge into position. Pin the 3/32" 
sq. bottom spars to the plan. These spars should extent to the inside edge of W-2 on the plan.

 
20.

 
Laminate ribs W-4, W-4A and W-4B together. Cut a paper strip from the plan 3/8" x 3/4" and roll into a tub around the 
landing gear wire with glue to form a paper tube. Use Sigment or Ambroid to glue the paper tube. Glue this tube into the 
opening in W-4A and then trim flush with the bottom of the rib.

 
21.

 
Glue ribs W-3 through W-8 into position. Glue the top 3/32" sq. spar to the ribs. This spar should extend past W-2 at the 
center and past the tip at the end.

 
22.

 
Glue gussets G-2 and G-4 into position.

 
23.

 
Remove the wing from the plan.

 
24.

 
Build the right wing as you did the left.

 
25.

 
To join the wings, first pin the center section to the plan.

 
26.

 
Place the left wing into position. The bottom and top spars should pass beyond W-2.

Summary of Contents for Award Winning Model Designs P-51D Mustang

Page 1: ...ass Washer 1 Nylon Propeller Bearing 2 Plastic Wheels 2 1 16 Plastic Wheel Retainers 1 3 16 x60 Rubber Strip 1 Laser Cut Plywood Disk N 1 5 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 ho...

Page 2: ...ous building experience If this is your frrst model then we recommend that you purchase a copy of the following book Rubber Powered Model Airplanes By Don Ross This excellent book covers basic building and flying procedures and provides valuable information about all aspects of building and flying rubber powered model airplanes Building the Tail Surfaces 1 Cover the plan with wax paper 2 Build the...

Page 3: ... model NOTE Do not cut the support from between the wing saddle and the belly scoop until after covering Building the Wings 16 Build the center section first Pin the 3 32 x 3 16 leading and trailing edge to the plan 17 Pin the lower 3 32 sq spars onto the plan Glue ribs W 1 and W 2 into position Glue the gussets G 1 and G 3 into position 18 Glue the 3 32 sq spar to the top of the center section Th...

Page 4: ...uselage 40 Trim the belly scoop support from the side frames 41 Glue the wings into position on the model 42 Test fit and glue the stabilizer to the rear fuselage being careful to maintain proper alignment 43 Glue the rudder to the fuselage accurately 44 Assemble the propeller assembly using the hardware provided 45 Glue the propeller assembly into the removable nose block Be sure to use the corre...

Page 5: ... trimmed model will circle to the left while climbing under power level out as the power runs down and transition into a right hand gliding circle WARRANTY Herr Engineering Corp guarantees this kit to be free from defects in both materials and workmanship at the time of purchase This warranty does not cover any component damaged buy use or modification In no case shall Herr Engineering Corporation...

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