Black Horse Model BH48 Instruction Manual Book
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Black Horse Model BH48 Instruction Manual Book

Black Horse Model BH48 Instruction Manual Book

Yak-54
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Instruction Manual book
SPECIFICATION
     Wingspan :
     Length
     Weight
     Engine
     Radio
     Servo
170 cm
:
156 cm
:
3.9 Kg
:
120 Two stroke.
120 Four stroke.
:
6channels.
:
6 servos.
ITEM CODE: BH48.
66.93 in.
61.42 in.
8.58 Lbs.
Made in Vietnam.

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Summary of Contents for Black Horse Model BH48

  • Page 1 Instruction Manual book ITEM CODE: BH48. SPECIFICATION      Wingspan : 170 cm 66.93 in.      Length 156 cm 61.42 in.      Weight 3.9 Kg 8.58 Lbs.      Engine 120 Two stroke.
  • Page 2 YAK 54 - Instruction Manual ITEM CODE: BH48 This instruction manual is designed to help you build a great flying aeroplane. Please read this manual thoroughly before starting assembly of your YAK 54. Use the parts listing below to identify all parts.

  • Page 3: Safety Precaution

    YAK 54 - Instruction Manual ITEM CODE: BH48 Caution: this model is not a toy! If you are a beginner to this type of powered model, please ask an experienced model flyer for help and support. If you attempt to operate the model without knowing what you are doing you could easily injure yourself or somebody else.
  • Page 4 YAK 54 - Instruction Manual ITEM CODE: BH48 REPLACEMENT LARGE PARTS A. Cowling B.Wings panel(B1&B2). C. Fuselage. D.Horizontal stabilizer E.Rudder F. Aluminium tube wing K.Pilot REPLACEMENT SMALL PARTS 5x45mm 5x45mm 1. Aluminium landing gear. 2.Wheel pants 3. Spinner. 4. Plastic engine mount 5.

  • Page 5: Installing The Aileron Servos

    YAK 54 - Instruction Manual ITEM CODE: BH48 INSTALLING THE AILERON SERVOS.  1. Install the rubber grommets and brass eyelets onto the aileron servo. Bottom of wing.  2. Using a modeling knife, remove the cov- ering at possition show below.

  • Page 6: Installing The Aileron Linkages

    YAK 54 - Instruction Manual ITEM CODE: BH48  5. Instal servo tray with aileron servo into the wing as same as picture below. Drill a hole Aileron 1.5mm diameter. Control horn. Repeat the procedure for the other wing half.

  • Page 7: Installing The Engine Mount

    YAK 54 - Instruction Manual ITEM CODE: BH48 INSTALLING THE ENGINE MOUNT. See pictures below: 4x30mm 4x12mm 4x30mm Drill a hole 5mm diameter. Secure Bottom side. Repeat the procedure for the other wing half.

  • Page 8: Installing The Engine

    YAK 54 - Instruction Manual ITEM CODE: BH48 INSTALLING THE ENGINE. Locate the long piece of wire used for the throttle pushrod. One end of the wire has been pre-bend in to a “Z” bend at the factory. This “Z” bend should be inserted into the throttle arm of the engine when the engine is fitted onto the engine mount.

  • Page 9: Installing The Throttle Pushrod

    YAK 54 - Instruction Manual ITEM CODE: BH48 INSTALLING THE THROTTLE PUSHROD.  1. Install one adjustable metal connector Secure. through the third hole out from the center of one servo arm, enlarge the hole in the servo arm using a 2mm drill bit to accommodate the servo connector.
  • Page 10 YAK 54 - Instruction Manual ITEM CODE: BH48  3. Carefully bend the second nylon tube up  9. To secure the fuel tank in place, apply a at a 45 degree angle (using a cigarette lighter). bead of silicon sealer to the forward area of the This tube will be the vent tube to the muffler.
  • Page 11 YAK 54 - Instruction Manual ITEM CODE: BH48 COWLING.  1. Slide the fiberglass cowl over the en- gine and line up the back edge of the cowl with the marks you made on the fuselage. Trim and cut. Drill 2mm hole ...

  • Page 12: Installing The Spinner

    YAK 54 - Instruction Manual ITEM CODE: BH48 INSTALLING THE SPINNER. 3 x 15mm. Install the spinner backplate, propeller Drill a hole and spinner cone. The spinner cone is held in place using two 3mm x 15mm wood screws. Secure.

  • Page 13: Horizontal Stabilizer

    YAK 54 - Instruction Manual ITEM CODE: BH48       2) Using a ruler and a pen, locate the HORIZONTAL STABILIZER. centerline of the horizontal stabilizer, at the trail- See pictures below: ing edge, and place a mark. Use a traingle and...

  • Page 14: Elevator Control Horn Installation

    YAK 54 - Instruction Manual ITEM CODE: BH48 Remove covering. Mark line Top side. Bottom side. Mark line Bottom side.  4. Remove the stabilizer. Using the lines you just drew as a guide, carefully remove the covering from between them using a modeling ELEVATOR CONTROL HORN INSTALLATION.

  • Page 15: Elevator Pushrod Installation

    YAK 54 - Instruction Manual ITEM CODE: BH48       3) After the epoxy has fully cured, remove the masking tape or T-pins used to hold the stabilizer in place. Carefully inspect the glue joints. Use more epoxy to fill in any gaps that...
  • Page 16 YAK 54 - Instruction Manual ITEM CODE: BH48 Control horn of Rudder. E l e v a t o r pushrod E l e v a t o r Elevator pushrod pushrod Bottom side. RUDDER SERVO NSTALLATION Rudder servo install as same as method of elevator servo.

  • Page 17: Mounting The Tail Wheel Bracket

    YAK 54 - Instruction Manual ITEM CODE: BH48 Elevator Bottom side. pushrod. Temporary pin to keep hinge centered. Rudder cable. Rudder cable. Assemble then apply drops of thin C/A to center of hinge,on both sides. Rudder push-pull cable. Top side.
  • Page 18 YAK 54 - Instruction Manual ITEM CODE: BH48      2. Using a pen, mark the locations of the two mounting screws. Remove the tail wheel bracket and drill 1mm pilot holes at the loca- tions marked.

  • Page 19: Installing The Main Landing Gear

    YAK 54 - Instruction Manual ITEM CODE: BH48  3. Using the hardware provided, mount Drill 5mm hole the main landing gear to the fuselage. 4x15mm Secure. Bottom side. Secure. Repeat the procedure for the other wheel pant . INSTALLING THE SWITCH.

  • Page 20: Installing The Receiver And Battery

    YAK 54 - Instruction Manual ITEM CODE: BH48 WING ATTACHMENT. INSTALLING THE RECEIVER AND BATTERY.       1. Plug the servo leads and the switch 1.Locate the aluminium wing dihedral brace. lead into the receiver. You may want to plug...

  • Page 21: Installing Cockpit Fuselage

    YAK 54 - Instruction Manual ITEM CODE: BH48  3.Insert two wing panels as pictures be- low. Epoxy glue. Left side. Secure Installing the canopy as same as picture below C/A glue. INSTALLING COCKPIT FUSELAGE . See picture below: Secure.

  • Page 22: Control Throws

    YAK 54 - Instruction Manual ITEM CODE: BH48 BALANCING. CONTROL THROWS.       1) It is critical that your airplane be bal-       1) We highly recommend setting up a anced correctly. Improper balance will cause plane using the control throws listed.

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