SIG Herr P-51 Mustang Assembly Instructions Manual Download Page 4

General Note: Cover the plans with wax paper before assembling your model to prevent the parts from sticking to the plan.
 
 

Building the Tail Surfaces

 
1.

 
Join R-1 and R-2 together over the plan to make the fin. Temporarily hinge the rudder (R-3) to the fin (R-1). Do not glue 
the hinges at this time. Bend the tail wheel wire to shape and glue it into position into the bottom of the rudder.

 
2.

 
Join the elevators using the 1/8 dowel. Use the plan of the stabilizer as a guide. Trim the dowel if required to achieve the 
proper length.

 
3.

 
Temporarily hinge the elevators to the stabilizer. Do not glue the hinges at this time.

 
4.

 
Sand the tail surfaces smooth and round all of the edges except the bottom edge of the fin.

 
 

Building the Fuselage

 
5.

 
Assemble the fuselage side by gluing parts F-1 and F-2 together.

 
6.

 
Glue the plywood doubler F-3 to the inside of each fuselage side. Be sure that you make a left and right side. The doubler 
goes on the inside of each side.

 
7.

 
Cut two strips from the 6 piece of 3/32 x 1/4 and glue to the front face of former F-9. Glue the fuselage top pieces F-7A 
and F-7B together.

 
8.

 
Lay the right fuselage side on the building board and glue former F-4 into position 90 degrees to the fuselage side.

 
9.

 
Glue former F-5 into position 90 degrees to the fuselage side.

 
10.

 
Place the left fuselage side into position on the the formers. Now glue the formers F-4 and F-5 to the left fuselage side.

 
11.

 
Pull the front fuselage sides together and glue former F-6 into position.

 
12.

 
Pull the aft end of the fuselage together and hold with two cloths pins.

 
13.

 
Place formers F-9 and F-10 into position and glue to the fuselage sides.

 
14.

 
Place the fuselage top (F-7) and glue to the fuselage starting at the front and working toward the rear. Glue the aft ends of 
the fuselage sides together making sure that they are 90 degrees to the top.

 
15.

 
Glue part F-8 into position on the bottom front of the fuselage. Glue the lower rear fuselage (F-11) into position.

 
16.

 
Glue former F-12, F-13 and F-14 to the front of the fuselage.

 
17.

 
Cut the fuselage nose block into two pieces and glue into position on the forward bottom of the fuselage.

 
18.

 
Mount the engine on the mount and position the mount on the front of F-12 so that the spinner is aligned properly with F-
14. Mark the location of the mount on the front of F-12 and drill the holes in F-12 for the motor mount screws.

 
19.

 
Glue the fuel tank supports (F-20) into position. You may have to trim them to the proper length before installation.

 
20.

 
Assemble the fuel tank and fit it into place in the fuselage.

 
21.

 
Mark the front of F-12 for the location of the throttle pushrod and fuel and vent lines. Remove the motor mount from the 
model and drill the holes in F-12.

 
22.

 
Mount the motor and the mount on the front of the fuselage and install throttle servo and throttle pushrod. Now remove the 
engine from the model.

Summary of Contents for Herr P-51 Mustang

Page 1: ...24 Balsa Strip 4 Trailing Edge 1 16x1x24 Balsa Sheet 1 Fuselage Top Stringer 3 32x1 4x18 Balsa Strip 2 Ailerons 1x24 Tapered Ailerons 1 Wing Jig 1 8 sqx24 Balsa Strip 1 Top Fuselage Sheet 3 32x4x18 Balsa Sheet Wood Bag 2 2 Aileron Torque Rods 10 Threaded Rod Bend One End 4 Center Section Belly Scoop Sheet 1 16x3x12 Balsa Sheet 1 Former F 9 Braces 3 32x1 4x6 Balsa Strip 2 Tail Blocks 1 2x3 4x3 1 4 ...

Page 2: ...tting 1 Wing Center Section Tape 1 x20 Nylon Tape 1 LC 506 11 3mmx6x18 Laser Cut Poplar Ply Sheet The first thing that you need to do is to identify and mark the part numbers on the laser cut parts using the drawings on the following 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...

Page 3: ...o 229 2 Covering Material 2 Rolls Iron on covering material 1 Paint To match the covering material for canopy and engine compartment 1 Propeller Grish Tornado 6 3 Nylon Propeller GRIQ1050 2 3 32 Wheel Collars Du Bro 138 1 1 16 Wheel Collar Du Bro 137 2 Main Wheels 2 1 4 Du Bro 225T 1 Tail Wheel 3 4 Sullivan 351 T1 Tail Wheel 2 Wheel Bushings Make from K S Brass Tube 127 1 Throttle Pushrod Assembly...

Page 4: ...n on the the formers Now glue the formers F 4 and F 5 to the left fuselage side 11 Pull the front fuselage sides together and glue former F 6 into position 12 Pull the aft end of the fuselage together and hold with two cloths pins 13 Place formers F 9 and F 10 into position and glue to the fuselage sides 14 Place the fuselage top F 7 and glue to the fuselage starting at the front and working towar...

Page 5: ...ers Sand the canopy rails to match the curvature of former F 17 Sand the entire fuselage smooth all over 31 Glue the stabilizer into position at the rear of the fuselage 32 Place the fin into position and sand the tail blocks to shape Now glue the fin and tail blocks to the model 33 Install the elevators and rudder with their hinges but do not glue at this time Cut the slot in the fuselage and rud...

Page 6: ...on the plan and then glue this block into position in ribs W 3 and W 4 57 Install the lower leading edge sheet as you did the top sheet This sheet should also be glued to the landing gear block 58 Use the 1 16 x 3 sheet to sheet the center section of the wing from W 1 to slightly past W 3 59 Trim and sand the spars and sheet flush with ribs W 1 and W 9 Sand the wing smooth and sand the leading edg...

Page 7: ...op on the wing smooth and flush with the parts that are glued to the fuselage Covering 74 Remove the engine control surfaces wing dowels and other items Sand the entire model smooth with 320 grit sandpaper 75 Cover the model with your choice of iron on covering materials 76 Apply the decals and other markings as desired An ultra fine Sharpie Marker can be used to draw panel lines and other details...

Page 8: ...nship at the time of purchase This warranty does not cover any component 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 sha...

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