SIG HRR501 Assembly Instructions Manual Download Page 6

53.

Sand the leading edge of the wing round and sand the wing smooth all over.

 
54.

 
Measure and draw a line on the top of the trailing edge, 1/4" back from the forward top comer. Use a straight edge to 
guide your knife while you cut the trailing edge from the wing. Each section should be flat on the building board as you cut 
it free from the wing and your knife should be held 90 degrees to the building board. The pieces from the outboard panels 
will make the ailerons and the piece from the center section will be grooved to accept the aileron torque rods.

 
55.

 
Cut the 1/8" sq. groove into the front of the center section trailing edge that you removed from the wing in the previous 
step. Do not cut this groove in the ailerons.

 
56.

 
Slide the nylon bearing tubes over the aileron torque rods and then bend the ends 90 degrees to match the plan. Be sure 
to make one right and one left hand. Cut the ends to the length shown on the plan.

 
57.

 
Fit the torque rods into the notches in the center section trailing edge. Cut notches into the top forward edge of the trailing 
edge to allow clearance for the vertical ends. Carefully glue the bearing tubes into the trailing edge. Be careful not to allow 
any glue to get into the inside of the tube. The aileron torque rods must rotate freely.

 
58.

 
Glue the center section trailing edge onto the center section of the wing.

 
59.

 
Trim or sand the bevel onto the front of the ailerons. Trim the ends of the ailerons so there is a 1/32" gap at each end 
when held into position on the wing.

 
60.

 
Cut the hinge slots into the wing and ailerons and drill the 1/16" hole in the aileron for the torque rod. Test fit the ailerons 
onto the wing. Cut a small groove into the front of the ailerons from the torque rod hole to the inboard end to allow the 
torque rod to fit flush into the aileron and allow the aileron to contact the trailing edge of the wing.

 
61.

 
Test fit the landing gear wires into the landing gear blocks. Bend the wire so that the landing gear legs angle forward at the 
angle shown on the plan.

 

Pre-Cover Assembly

 
62.

 
Glue the stabilizer into position on top of the fuselage.

 
63.

 

Moveable Rudder (4 channel)

 

Glue the base of the fin to the stabilizer. 
 

Fixed Rudder ( 2 or 3 channel)

 

Glue the base of the fin to the stabilizer. Do not glue the lower end of the rudder to the fuselage.

 
64.

 
Make the rudder filler strips from the 1/4"x 3/4" x 2" block. Sand them to shape and then glue them into position.

 
65.

 
Bend the tail wheel wire to the proper shape for either the fixed rudder or the moveable rudder. If you are using a 
moveable rudder, attach the tail wheel wire to the rudder at this time. If you are using a fixed rudder then your tail wheel 
wire will be attached to the bottom of the fuselage after covering.

 
66.

 
Temporarily (do not glue) hinge the elevators to the stabilizer. If you are using a fixed rudder you need to spring the bottom 
of the rudder to one side to allow the elevator joiner to slide through.

 
67.

 
If you are using a moveable rudder then cut a slot in the rudder and the lower fuselage for the lower hinge. Temporarily 
(do not glue) hinge the rudder to the model.

 
68.

 
Mount the elevator servo to the fuselage side with servo tape. ( For the tape to stick securely you should lightly clean the 
side of the servo with alcohol to remove any oil. Remove the paper backing from the tape and apply two strips of servo 
tape to the servo. Remove the paper backing from the tape on the servo and lightly coat the exposed face of the tape with 
thick C/A glue. Press the servo into position on the inside of the fuselage side and hold securely until the glue dries.) If you 
are using throttle and/or rudder then attach these servos to the fuselage.

 
69.

 
Attach the control horns to the elevator (and to the rudder if moveable).

 
70.

 
Install the pushrods from the tail to the servos. You will have to remove the control horns to attach the "Z" bend end of the 
pushrod to the horns. Attach the pushrods to the servos with servo connectors and trim the pushrods to length.

Summary of Contents for HRR501

Page 1: ...a Strip 2 Leading Edge Strips 3 32 sq x36 Balsa Strip 1 Trailing Edge 5 16 x1 x 6 Tapered Balsa Trailing Edge 1 1 16 Balsa Sheet 1 16 x3 x 6 Balsa Sheet 1 3 32 x1 4 Strip 3 32 x1 4 x18 Balsa Strip Misc Parts Loose in Box 2 Main Landing Gear 2 1 16 Bent Aileron Torque Rod 1 Pushrod 1 16 x18 Wire Pushrod Z Bend One End 1 Cowl 1 Canopy 1 Plan Sheet 1 1 Plan Sheet 2 1 Decal Sheet 1 Instruction Book Ha...

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: ...sterKote Black TOPR7208 1 Propeller Grish Tornado 6 3 Nylon Propeller GRIQ1050 6 Rubber Bands wing attach Sig SH 340 2 Wheel Bushings Make from K S Brass Tube 127 1 Nylon Reinforcing Tape Goldberg 450 1 1 1 2 Spinner Du Bro 261 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 Make the elevators by g...

Page 4: ...ge top Glue F 12A and F 12 into position 27 Glue 3 32 x 1 4 strips between F 3 and F 5 between F 3 and F 12 and between F 14 and F 16 Trim away F 12A and F 13 if required to allow the strip to fit completely into the notches in the formers When the glue is dry trim the ends of the strips flush with the formers 28 Sheet the lower front fuselage with 1 16 sheet Cut a piece of 1 16 x 3 sheet slightly...

Page 5: ...r rib W 10 43 Glue the lower spar the trailing edge and the leading edge to the wing center section 44 Place rib W 4 into position and glue it to the trailing edge the main spar the leading edge and to rib W 3 45 Cut the top 3 16 sq spar and the two 3 32 sq leading edge strips to length and glue into position 46 There are 4 thin plywood dihedral braces that are laminated together at each upper and...

Page 6: ...landing gear wires into the landing gear blocks Bend the wire so that the landing gear legs angle forward at the angle shown on the plan Pre Cover Assembly 62 Glue the stabilizer into position on top of the fuselage 63 Moveable Rudder 4 channel Glue the base of the fin to the stabilizer Fixed Rudder 2 or 3 channel Glue the base of the fin to the stabilizer Do not glue the lower end of the rudder t...

Page 7: ...materials Cover the landing gear fairings LG at this time 82 Paint the cowl canopy frame and wing dowels to match the covering Paint the firewall and cowl blocks with fuel proof paint 83 Apply the decals and other markings as desired An ultra fine Sharpie Marker can be used to draw panel lines and other details Final Assembly 84 lnstall the elevators and glue the hinges 85 0n the fixed rudder vers...

Page 8: ... 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 shall be assumed or accepted for any damage resulting f...

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