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Black Horce Model YAK 55M Instruction Manual

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Instruction Manual book
SPECIFICATION
     Wingspan : 2,250 mm
     Length
     Weight
     Radio
     Servo
     Engine
88.58 inches.
: 2,000 mm
78.74 inches.
: 8.3 kg
18.26 lbs.
: 8 channels.
: 8 servos.
: OS.GT 55 cc
ITEM CODE: BH114
Made in Vietnam.

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  • Page 1 Instruction Manual book ITEM CODE: BH114 SPECIFICATION      Wingspan : 2,250 mm 88.58 inches.      Length : 2,000 mm 78.74 inches.      Weight : 8.3 kg 18.26 lbs. ...

  • Page 2: Instruction Manual

    Instruction Manual Item code: BH114 This instruction manual is designed to help you build a great flying aeroplane. Please read this manual thoroughly before starting assembly of your YAK 55M. Use the parts listing below to identify all parts. WARNING.

  • Page 3: Safety Precaution

    YAK 55M - Instruction Manual Item code: BH114 Caution: this model is not a toy! Caution! do not heat the film more than is If you are a beginner to this type of powered absolutely necessary. If the air or the iron is...
  • Page 4 YAK 55M - Instruction Manual Item code: BH114 REPLACEMENT SMALL PARTS 1. Aluminium landing gear. 2. Wheels. 3. Tie wrap. 4. Fuel Tank. 5. Tail gear set . 6. Spinner. 7. Plastic parts for rudder pushrod.  1. Using the thread as a guide and using masking tape, tape the servo lead to the end of the thread: carefully pull the thread out.

  • Page 5: Installing The Aileron Linkages

    YAK 55M - Instruction Manual Item code: BH114 3.INSTALLING THE AILERON LINKAGES 1. Installing the aileron linkages as pictures Secure. below. 85 mm 3x15mm. 3x12mm. Repeat the procedure for the other wing half. 2.INSTALLING THE AILERON CONTROL HORN Install aileron control horn as same as picture below.
  • Page 6 YAK 55M - Instruction Manual Item code: BH114 Aileron pushrod. II. SERVO 2 1.INSTALLING THE AILERON SERVOS 2. Aileron control horn. 3.INSTALLING THE AILERON LINKAGES 2. 85mm 3x15mm. 3x12mm. Installing the aileron linkages as pictures below. Secure. INSTALLING THE AILERON CONTROL HORN 2.

  • Page 7: Installing The Engine Mount

    YAK 55M - Instruction Manual Item code: BH114 Secure. Drill a hole 5mm diameter. Secure. INSTALLING THE ENGINE. See pictures below: bottom side. Repeat the procedure for the other wing half. INSTALLING THE ENGINE MOUNT. See pictures below: 5 x 45mm...
  • Page 8 YAK 55M - Instruction Manual Item code: BH114 Secure. Right side. Fron view. Bottom side Secure. FUEL TANK. INSTALLING THE STOPPER ASSEMBLY  1) The stopper has been pre-assembled at the factory.  2) Using a modeling knife, cut one length...
  • Page 9 YAK 55M - Instruction Manual Item code: BH114 end of the line to the weighted clunk and the  6) When satisfied with the alignment of other end to the nylon pick up tube in the stop- the stopper assembly tighten the 3mm x 20mm per.

  • Page 10: Installing The Throttle Cable

    YAK 55M - Instruction Manual Item code: BH114 INSTALLING THE THROTTLE CABLE.  1. Install one adjustable metal connector 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 11 YAK 55M - Instruction Manual Item code: BH114 T h r o t t l e cable MAIN GEAR INSTALATION. PARTS REQUIRED  1) Assemble and mounting the wheel pants as shown in the following pictures. 450mm Pushrod wire...
  • Page 12 YAK 55M - Instruction Manual Item code: BH114 Secure. Secure.
  • Page 13 YAK 55M - Instruction Manual Item code: BH114 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. See picture below: Top side.
  • Page 14 YAK 55M - Instruction Manual Item code: BH114 Mark point. Drill a hole 2mm diameter. Center line. 3X 15mm Secure. Trim and cut.  2. While keeping the back edge of the cowl flush with the marks, align the front of the cowl with the crankshaft of the engine.
  • Page 15 YAK 55M - Instruction Manual Item code: BH114 Drill a hole 95mm Mark point. 2mm diameter. Mark point. 3 x 12mm Mark point. Secure. Machine screw. Mark point.

  • Page 16: Installing The Spinner

    YAK 55M - Instruction Manual Item code: BH114 Front view Secure INSTALLING THE SPINNER. Install the spinner backplate, propeller and spinner cone. The spinner cone is held in place using two 3mm x 12mm wood screws. INSTALLING THE ELEVATOR SERVOS.

  • Page 17: Elevator Control Horn Installation

    YAK 55M - Instruction Manual Item code: BH114 Secure. 3 x 15 mm Secure. HORIZONTAL STABILIZER. Horizontal stabilizer installation  See picture below. Bottom side Secure. 12 mm 410 mm ELEVATOR CONTROL HORN INSTALLATION. Elevator control horn install as same as the way of aileron control horn.

  • Page 18: Elevator Pushrod Installation

    YAK 55M - Instruction Manual Item code: BH114 Secure. Elevator pushrod. Bottom side Elevator pushrod. Elevator pushrod. E l e v a t o r control horn. ELEVATOR PUSHROD INSTALLATION. VERTICAL INSTALLATION.  Elevator pushrod install as same as the way of aileron pushrod.

  • Page 19: Rudder Control Horn Installa- Tion

    YAK 55M - Instruction Manual Item code: BH114 Aluminium A+B PLUS A+B Epoxy PLUS glue. Bottom side. Aluminium Aluminium RUDDER CONTROL HORN INSTALLA- TION. Rudder control horn install as same as the way of aileron control horn. Please see pic- tures below.
  • Page 20 YAK 55M - Instruction Manual Item code: BH114 3 x 12mm Secure. Rudder control horn. RUDDER PUSHROD INSTALLATION.  1. Rudder pushrod install as same as the way of aileron control horn.  2. Rudder push - pull system install as same as picture below.

  • Page 21: Mounting The Tail Wheel Bracket

    YAK 55M - Instruction Manual Item code: BH114 Cut. Mark point C/A glue. Drill a hole 2mm diameter. Bottom side Secure. MOUNTING THE TAIL WHEEL BRACKET. See picture below: 3x12mm 3x15mm...

  • Page 22: Installing The Switch

    YAK 55M - Instruction Manual Item code: BH114 INSTALLING THE RECEIVER AND BATTERY.       1. Plug the servo leads and the switch Bottom side. lead into the receiver. You may want to plug an aileron extension into the receiver to make plugging in the aileron servo lead easier when you are installing the wing .

  • Page 23: Wing Attachment

    YAK 55M - Instruction Manual Item code: BH114 WING ATTACHMENT. Locate the aluminium wing dihedral brace. 825 mm 25mm 25mm 635 mm *** Test fit the aluminium tube dihedral brace into each wing haft. The brace should slide in easily. If not, use 220 grit sand around the...
  • Page 24 YAK 55M - Instruction Manual Item code: BH114 Secure. Top side. Drill a hole 3mm diameter BALANCING.       1. It is critical that your airplane be bal- anced correctly. Improper balance will cause your plane to lose control and crash.

  • Page 25: Control Throws

    We wish you many safe and enjoyable       3. Check to be sure the control surfaces flights with your YAK 55M move in the correct directions. Ailerons : 20 mm up 20 mm down Elevator : 25 mm up...

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