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SPECIFICATION

                  

  

  

  

  

  

 Wingspan  :     1,810 mm.      71.26 in.

  

  

  

  

  

 Length       :    1,600 mm.      62.99 in.

  

  

  

  

  

 Weight      :      4.6kg.            10.12 lbs.

  

 

  

  

 Radio        :      6 channels.

  

  

  

  

  

 Servo        :      06 servos.

  

  

  

  

  

 Engine      :       30 cc

Made in Vietnam.

Instruction Manual book

ITEM CODE: BH111

Summary of Contents for YAK 55M

Page 1: ...SPECIFICATION Wingspan 1 810 mm 71 26 in Length 1 600 mm 62 99 in Weight 4 6kg 10 12 lbs Radio 6 channels Servo 06 servos Engine 30 cc Made in Vietnam Instruction Manual book ITEM CODE BH111 ...

Page 2: ... pins Thread lock Paper towels Some more parts HARDWAREPACK COWLING Landing gear To avoid scratching your new airplane do not unwrap the pieces until they are needed for assembly Cover your workbench with an old towel or brown paper both to protect the air craft and to protect the table Keep a couple of jars or bowls handy to hold the small parts af ter you open the bag Please trial fit all the pa...

Page 3: ...arm air over the area and rub down with a soft cloth Wing warp Hold the panel twisted gently in the opposite direction to the warp and apply warm air to remove the creases from the covering SAFETY PRECAUTION Caution do not heat the film more than is absolutely necessary If the air or the iron is too hot the film may melt and holes may be formed This model is highly pre fabricated and can be built ...

Page 4: ...inner 2 Wheels 5 Fuel Tank Aileron Bottom side 2 Using a modeling knife remove the cov ering at possition show below 3 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 When you have pulled the servo lead out re move the masking tape and the servo lead from the thread 6 Tail gear set 4 Engine mount ply of wood 1 3 4 2 5 6 ...

Page 5: ...below 3 x 25 mm Aileron Control horn 5 Instal servo tray with aileron servo into the wing as same as picture below 4 Drill 1 6mm pilot holes through the block of wood for each of the four mounting screws provided with the servo Installing the aileron linkages as pictures below 3 INSTALLING THE AILERON LINKAGES Secure Secure 55 mm 2x8 mm Bottom side Repeat the procedure for the other wing half Aile...

Page 6: ...ge the hole in the servo arm using a 2mm drill bit to accommodate the servo connector Remove the excess mate rial from the arm After installing the adjustable metal con nector apply a small drop of thin C A to the bottom nut This will prevent the con nector from loosening during flight INSTALLING THE THROTTLE CABLE Throttle servo Throttle servo Throttle cable INSTALLING THE ENGINE MOUNT Secure ...

Page 7: ...Instruction Manual Secure Secure Left side PARTS REQUIRED 1 Assemble and mounting the wheel pants as shown in the following pictures Secure MAIN GEAR INSTALATION Engine mount ply of wood 3 x 12mm Secure L a n d i n g gear 1 1 2 ...

Page 8: ...be in the stop per 3 Carefully bend the second nylon tube up at a 45 degree angle using a cigarette lighter This tube will be the vent tube to the muffler 4 Carefully bend the third nylon tube down at a 45 degree angle using a cigarette lighter This tube will be vent tube to the fueling valve FUEL TANK When the stopper assembly is installed in the tank the top of the vent tube should rest just bel...

Page 9: ...ked inside the fuel tank compartment Air should flow through easily 9 To secure the fuel tank in place apply a bead of silicon sealer to the forward area of the tank where it exits the fuselage behind the engine mounting box and to the rear of the tank at the forward bulkhead Do not secure the tank into place perma nently until after balancing the airplane You may need to remove the tank to mount ...

Page 10: ... and muffler extension onto the engine and make the cutout in the cowl for muffler clearance Connect the fuel and pressure lines to the carburetor muffler and fuel filler valve Trim and cut 3x 12mm Drill a hole 2 5mm diameter Drill a hole 2 5mm diameter Mark point 65 mm Mark point 65 mm ...

Page 11: ...H111 Instruction Manual Secure Machine screw Install the spinner backplate propeller and spinner cone The spinner cone is held in place using two 3mm x 12mm wood screws Front view Secure Secure Secure INSTALLING THE SPINNER ...

Page 12: ...YAK 55 ITEM CODE BH111 Instruction Manual 12 247 mm 9 mm 3 x 15mm Bottom side See pictures below HORIZONTAL STABILIZER 3x15mm Secure Left side Right side Aluminium ...

Page 13: ... install as same as method of elevator servo See picture below VERTICAL INSTALLATION Rudder servo 2x8 mm 130 mm ELEVATOR CONTROL HORN AND ELEVATOR PUSHROD INSTALLATION 3 x 25 mm Secure Elevator pushrod Elevator pushrod Bottom side Secure Secure Elevator control horn ...

Page 14: ...nual 14 Rudder control horn install as same as the way of aileron control horn Please see pic tures below Control horn of Rudder Rudder servo Aluminium A B PLUS glue RUDDER CONTROL HORN INSTALLA TION 3 x 35 mm Cut Bottom side A B PLUS Glue ...

Page 15: ...s same as the way of aileron control horn 2 Rudder push pull system install as same as picture below RUDDER CAPLE INSTALLATION 2 x 8mm Secure Secure 2 x 8 mm Top side Secure Elevatorpushrod E l e v a t o r pushrod Rudder cable MOUNTING THE TAIL WHEEL BRACKET 3x12mm 3x15mm ...

Page 16: ...Rudder cable E l e v a t o r pushrod E l e v a t o r pushrod 1 Cut out the switch hole using a modeling knife Use a 2mm drill bit and drill out the two mounting holes through the fuselage side 2 Secure the switch in place using the two machine screws provided with the radio system INSTALLING THE SWITCH Switch ...

Page 17: ... aileron extension into the receiver to make plugging in the aileron servo lead easier when you are installing the wing Plug the battery pack lead into the switch 2 Wrap the receiver and battery pack in the protective foam to protect them from vi bration Use a rubber band or masking tape to hold the foam in place 3 Position the battery pack and receiver behind the fuel tank Use two tie wraps to ho...

Page 18: ...it more difficult to slow down for landing Moving the balance aft makes the model more agile with a lighter and snappier feel In any case please start at the location we recommend Secure Drill a hole 3mm diameter Top side Secure Left wing 3 Turn the airplane upside down Place your fingers on the masking tape and care fully lift the plane 1 It is critical that your airplane be bal anced correctly I...

Page 19: ...e highly recommend setting up a plane using the control throws listed 2 The control throws should be meas ured at the widest point of each control sur face 3 Check to be sure the control surfaces move in the correct directions CONTROL THROWS Ailerons 25 mm up 25mm down Elevator 30 mm up 30mm down Rudder 35 mm right 35mm left With the wing attached to the fuselage all parts of the model installed r...

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