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MinimumRC Douglas A-4 Skyhawk Assembly Instructions Manual
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MinimumRC Douglas A-4 Skyhawk Assembly Instructions Manual

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Douglas A-4 Skyhawk
Assembly Instructions
Important Instructions
1.The model is supplied with UFO and 502 glue. UFO is for bonding foam parts, and 502 for bonding
wood, carbon fiber and metal parts. 502 glue will cause serious corrosion to foam parts.
2.Please wait for the glue to dry and solidify in each installation step before the next installation.
3.Please avoid using flame to heat the heat shrinkable tube on the model. Electric iron shall be used
for heating.
4.Please use razor blade to remove the parts from the plate. Do not tear the parts by forc e.
1. Assemble the wooden display stand.

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Summary of Contents for MinimumRC Douglas A-4 Skyhawk

  • Page 1 Douglas A-4 Skyhawk Assembly Instructions Important Instructions 1.The model is supplied with UFO and 502 glue. UFO is for bonding foam parts, and 502 for bonding wood, carbon fiber and metal parts. 502 glue will cause serious corrosion to foam parts.
  • Page 2 2. Fuselage wooden frame parts and printed components. 3. Assemble the fuselage wooden frame parts and printed components. 4. Detail: Please pay attention to the orientation of the intake components, ensuring the...
  • Page 3 correct front and back alignment. 5. Tail fin servo support wooden frame. 6. Install the servo support wooden frame.
  • Page 4 7. Magnets and its supporting structure. 8. Assemble and install the magnetic mount at the bottom of the fuselage wooden frame . 9. Connect the elevator and aileron servos to the receiver, and bind the receiver to the transmitter to ensure the servos are functioning properly. Install the servos as shown in the diagram (top view of the components).
  • Page 5 10. Install the aileron servo as shown in the diagram (bottom view of the parts). 11. Secure the receiver and electronic speed controller (ESC) using Velcro. Connect the servo and ESC plugs to the corresponding sockets on the receiver, and use zip ties to secure the cables.
  • Page 6 13. Remove the two adjacent arms of the cross-shaped arm (As shown in the diagram). 14. Install the servo arm onto the aileron servo. (As shown in the diagram.) 15. Duct components.
  • Page 7 16. Install the propeller by applying force at the center of the motor's bottom cover to avoid damaging the motor. Ensure that the propeller is fully seated and secured in place. 17. Assemble the motor with the duct printed part, adjusting the motor installation depth to ensure the propeller blades are as close to the support as possible and rotate freely (insufficient proximity can significantly affect thrust).
  • Page 8 18. Connect the motor wires and power up to test if the motor rotates in the correct direction. 19. Nose foam component. 20. Use a sharp tool (screwdriver) to score through the marked lines on the fuselage.
  • Page 9 21. Caution: When performing engraving operations, make sure to press on the part closest to the engraving lines to avoid tearing the components (As shown in the diagram) . 22. Install the nose foam component. 23. Cockpit foam board component.
  • Page 10 24. Install the cockpit foam component. 25. Fuselage foam component. 26. Use a sharp tool (a screwdriver) to score through all the marked lines on the inside of the fuselage foam board component at an angle.
  • Page 11 27. Install the fuselage foam component. 28. foam panels for the top and bottom of the fuselage. 29. Install the foam panel parts on the top of the fuselage.
  • Page 12 30. Install the foam panel parts on the bottom of the fuselage. 31. Remove the air intake. 32. Combine the fuselage.
  • Page 13 33. Apply the fuselage top sticker. 34. Apply the nose sticker. 35. Secure the batter y compartment cover using adhesive tape. Place a magnet at the circular hole on the batter y compartment cover.
  • Page 14 36. Secure the magnets using the ends of the sticker. 37. The battery compartment cover can be held in the closed position by the magnets. 38. Follow the diagram to trim away the excess material from the cockpit canopy vacuum-formed part. It's advisable to start with conservative cutting, place the canopy on the fuselage for alignment, and then make precise adjustments.
  • Page 15 39. The trimmed cockpit canopy. 40. Use glue to secure the cockpit canopy in place on the fuselage. 41. Apply the cockpit stickers.
  • Page 16 42. Horizontal stabilizer and vertical stabilizer. 43. Use a sharp tool (a screwdriver) to score along the marked lines on the bottom surface of the horizontal stabilizer at an angle. This allows the elevator to move freely along the cut lines on both sides. 44.
  • Page 17 45. Paste a 1x100mm carbon fiber rod on the bottom of the horizontal stabilizer for reinforcement. 46. Install the tail. 47. The wings.
  • Page 18 48. Use a sharp tool (a screwdriver) to score along the marked lines on the bottom side of the wing at an angle. This allows the wing to bend downward along the central longitudinal line, forming an airfoil shape. 49. Use a sharp tool (a screwdriver) to score along the marked lines on the bottom side of the aileron at an angle.
  • Page 19 50. Apply glue within the marked lines on the underside of the wing, and attach a 1x130mm carbon fiber rod as a reinforcement. Proceed to the next installation step before the glue dries. 51. Install the wings. A small amount of 502 glue (CA glue) may be used at the wing root and the joint between the wing and the wooden spar to enhance strength.
  • Page 20 53. Install the elevator control horns. 54.Take two 115mm carbon rods for use as aileron pushrods. Cut four pieces of heat shrink tubing, each 5mm long, to connect the aileron pushrods and the wire cl ips. 55. Use heat shrink tubing to connect the pushrods and the servo wire clips, then apply a drop of CA glue (502 glue) to secure them.
  • Page 21 56. Install the linkage hook onto the aileron control horn. 57. Insert the carbon rod and wire clips into the fuselage, then mount them on the aileron servo arms. 58. Use heat shrink tubing to connect the aileron pushrods and the linkage hooks, then apply a drop of CA glue (502 glue) to secure them.
  • Page 22 59. Take two 160mm carbon rods for use as elevator pushrods. Cut four pieces of heat shrink tubing, each 5mm long, to connect the elevator pushrods and the wire cl ips. 60. Use heat shrink tubing to connect the pushrods and the servo wire c lips, then apply a drop of CA glue (502 glue) to secure them.
  • Page 23 62. Insert the carbon rods and wire clips into the fuselage, and attach them onto the same hole on the elevator servo arm. Use tweezers for this operation. 63. Use heat shrink tubing to connect the horizontal stabilizer pushrods and the linkage hooks, then apply a drop of CA glue (502 glue) to secure them.
  • Page 24 65. Install the control horn protectors on the bottom of the wings. If necessar y, secure the ballast weights inside the nose using Velcro. It is recommended to adjust them after test flying. 67. Place the battery inside the nose.
  • Page 25 Assembly complete! Maiden flight ·The center of gravity of the aircraft is located 5mm in front of the wing scored line . ·The active range of ailerons, elevator and rudder is 4mm on both sides. ·Choose grass land for maiden flight.