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AeroWorks SU-31 Assembly Manual

Profile electric arf
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SU-31 PROFILE ELECTRIC
ARF
ASSEMBLY MANUAL
1

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Summary of Contents for AeroWorks SU-31

  • Page 1 SU-31 PROFILE ELECTRIC ASSEMBLY MANUAL...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS Page Aeroworks Contact Information …………………………………………………………..Introduction …………………………………………………………………………………….. Kit Contents……………………………………………………………………………………... Items needed to complete ……………………………………………………………………… Wing Assembly…………………………………………………………………………………. Stab Assembly …………………………………………………………………………………. Flight Control Assembly ……………………………………………………………………… Wheels and Motor Assembly …………………………………………………………………. Servos and Radio Installation ………………………………………………………………… Preflight Preparation …………………………………………………………………………… 26...

  • Page 3: Aeroworks Contact Information

    Info@aero-works.net Thank you for choosing the Aeroworks SU-31 Profile Electric ARF. We have put allot of effort into making this plane the best aerobatic model you will ever build and fly. Consideration was given to provide you with the highest quality and performance plane possible.

  • Page 4: Introduction

    INTRODUCTION Your new SU-31 Profile Electric ARF is a highly aerobatic airplane. It is capable of all styles of flying, from gentle and stable slow flight, sport aerobatics, to full out 3D type maneuvers. We hope you enjoy building and flying your SU-31. This aircraft builds easily, quickly, and accurately due to the CAD design and LASER cutting technology.

  • Page 5: Kit Contents

    KIT CONTENTS 6. Landing gear parts SU-31 Profile Electric ARF Parts List • 2 Main landing wire struts pre-bent • 2 Main wheels 1. Wing assembled and covered • • 2 Wheel collars and spacers Aileron servo bays opened up •...

  • Page 6: Items Needed To Complete

    Tools: Items needed to complete: • Modeling knife • Electric drill and selection of bits Hardware: • Phillips screwdriver • Flat head screwdriver • Motor, mount • Needle nose pliers HC 2812-1200) Recommended (Himax • Wire Cutters • Propeller • Punch Recommended (APC-E 11 x 4.7) •...

  • Page 7: Wing Assembly

    SU-31 PROFILE ELECTRIC ARF WING ASSEMBLY 1. Lay a 36” ruler parallel to the trailing edge of the 3. Use a 90º square to mark the centerline of the wing. wing from the leading edge to the trailing edge on the top and bottom of the wing. Servo cut outs and open bays, are on the bottom side of wing.
  • Page 8 5. Use building squares, wood blocks, shims, and or 7. Ensure the fuse edge is aligned with the fuse masking tape as necessary to accomplish the edge mark on the wing trailing edge on both left following steps for aligning the wing to the fuse. and right sides.
  • Page 9 9. Ensure the wing tips are equal distance from the building board on both the left and right sides. 10. IMPORTANT: Check and recheck all measurements to ensure the wing is straight, level, and aligned square with the fuse. When you are satisfied with the alignment, tacks glue the wing to the fuse on the topside with thin CA at the leading and trailing edges and center of the...

  • Page 10: Stab Assembly

    SU-31 PROFILE STAB ASSEMBLY 11. Lay an 18” ruler parallel to the trailing edge of 13. Use a 90º square to mark the centerline of the the stab. stab from the leading edge to the trailing edge on the top and bottom of the stab.
  • Page 11 15. Use building squares, wood blocks, shims, and or 17. IMPORTANT: Check and recheck all masking tape as necessary to accomplish the measurements to ensure the stab is straight, following steps for aligning the stab to the wing level, and aligned square with the wing and fuse. and fuse.

  • Page 12: Flight Control Assembly

    SU-31 PROFILE ELECTRIC ARF FLIGHT CONTROL ASSEMBLY 18. Locate the 4 control horns and 11 CA hinges pictured below. 20. Center control horn over mark and in the center of the balsa aileron doubler. Mark the location of the two control horn mounting pins. Ensure the control rod linkage holes in the top of the control horn line up with the leading edge of the aileron.
  • Page 13 22. Press the control horn into the balsa all the way down so that the base of the control horn is flush against the aileron. Apply thin CA to the base of 24. Install aileron hinges by first inserting a pin the control horn to ensure a secure joint.
  • Page 14 26. Place a drop of thin CA on the top and bottom of 28. Center control horn over the mark and in the each hinge. Be certain to allow for maximum center of the balsa elevator doubler and mark the control throw deflection prior to gluing.
  • Page 15 30. Use wire cutters to cut off the control horn 32. Place a drop of thin CA on the top and bottom of mounting pins flush with the top of the elevator. each hinge. Be certain to allow for maximum control throw deflection prior to gluing.
  • Page 16 34. Center control horn over the mark and in the center of the balsa rudder doubler and mark the location of the two control horn mounting pins. Ensure the control rod linkage holes in the top of 36. Press the control horn into the balsa all the way the control horn line up with the leading edge of down so that the base of the control horn is flush the aileron.
  • Page 17 use too much CA to avoid it running out on the fin or rudder or in the hinge gap and gluing the rudder to the fin. 38. Install rudder hinges by first inserting a pin through the center of the hinges and then Flight control assembly is now complete.

  • Page 18: Wheels And Motor Assembly

    SU-31 PROFILE ELECTRIC ARF WHEELS AND MOTOR ASSEMBLY 40. Locate the wheel parts pictured below. 42. Insert the longer landing gear wire into the upper hole in the landing gear mounting plate. Insert the shorter landing gear wire into the lower hole.
  • Page 19 44. Cut off excess wire tie strap with wire cutters 46. Assemble motor mount to the front of the motor. flush with the wire tie head. Now center the motor in the motor cutout in the nose of the fuse. Ensure the motor does not touch the fuse.
  • Page 20 48. Install motor using two Phillips head self-tapping screws. Motor installation is now complete...

  • Page 21: Servos And Radio Installation

    SU-31 PROFILE ELECTRIC ARF SERVOS AND RADIO INSTALLATION 49. Insert the rudder and elevator servos with the output shafts facing forward into the servo wells 51. Insert the aileron servos into the servo wells with in the fuse. The elevator servo is on top and the the output shafts facing the trailing edge of the rudder servo is on the bottom.
  • Page 22 53. Use a hobby knife to remove the covering from 55. Attach a 6” servo lead extension to the rudder the opening on the right side of the fuse for the and elevator servo leads before fishing the leads servo wires to go inside the fuse. through the fuse.
  • Page 23 57. Locate the 4 wire pushrods and 4 nylon R/C 59. Install the pushrod through the servo arm keeper keepers shown in photo below. and attach to the aileron control horn. Install the nylon keeper on the pushrod over the control horn.
  • Page 24 61. Using the same procedure, install the rudder push 63. Attach a Y harness to the aileron servo leads. rod and attach to the rudder control horn and rudder servo output arm as shown in the photo below. 62. Using the same procedure, install the elevator 64.
  • Page 25 65. Mount the speed control on the left side of the 67. Run antenna wire along the bottom of fuse fuse with double-sided tape. Attach speed and secure with small pieces of clear tape. control wires to motor according to speed control Wrap antenna wire around tail post and back and motor instructions.

  • Page 26: Preflight Preparation

    PREFLIGHT PREPARATION Applying Decals Factory decal placement. 69. Cut the pre printed adhesive backed decals from the decal sheet and apply where desired. Clean the models surface with alcohol to allow a good bond to the surface. The decals may be applied using Windex or a solution of 1 drop of dish detergent to a cup of water sprayed on the model to assist in proper positioning.
  • Page 27 Balance the SU-31 along the CG line with your Aileron throw measurement in inches. fingers. Make sure the battery is installed and plane is ready to fly. Elevator throw measurement 71. Start at the forward end of the CG range until you are comfortable with the flight characteristics of the aircraft.
  • Page 28 Control Throw Deflection Table Low Rate High Rate Aileron 3/4” up 1 ¼” up 3/4” down 1 ¼” down Rudder 1” left 1 3/4” left 1” right 1 3/4” right Elevator 3/4” up 1 ¼” up 3/4” down 1 ¼” down For 3D flying use the following throws: 3D Rate Aileron...
  • Page 29 After the first flight inspect the entire airplane for any loose fasteners or cracked joints. As you gain experience with the SU-31 move the CG back and increase control throws to the maximum for more extreme 3D aerobatics.

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