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YAK54  MK2

Instruction Manual

INSTALLING THE AILERONs SERVOS

1.   Install  the  rubber  grommets  and  brass  eyelets  onto 

the aileron servo.

2. Using a modeling knife, remove the covering from over 

the servo box.

3.  Place the servo into the servo box. Center the servo  

and  drill  pilot  holes  through  the  block  of  wood  for 

each  of  the  four  mounting  screws  provided  with  the 

servo.

4.  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,  remove  the 

masking  tape  and  the  servo  lead  from  the 

thread.

5. Repeat step # 2 - # 5 to install the second aileron 

servo in the opposite wing half.

Make certain the hinges are adequately secured with glue. If 

they come loose in flight accidents may result.

Secure  nylon  hinges  with  instant  glue,  being  careful 

not to glue the wing and airleron together.

Apply instant glue (CA glue, super glue).

Align the center line of main wing with aileron.

Cut away film only. here
Supplied with the servo

2mm

Must be purchased

separately!
Assemble left and right

sides the same way

Cut off shaded portion

Set all scerws securely. If they come off during 

flight you will lose control of your aircraft!

Tie the string.

Pull out servo 

cord with string.

Warning!

Aileron

Aileron

D

D

Summary of Contents for YAK54 MK2

Page 1: ...mount 21mm x 42 mm Propeller suit with your engine Engine 120 2 stroke or 120 4 stroke glow engine or 20cc gas engine not included Motor brushless outrunner 2000 2400 W 450 KV not included Gravity CG...

Page 2: ...er and acetone Do not let these chemicals come in contact with the colors on the covering and the plastic parts SAFETY PRECAUTION This is not a toy Be sure that no other flyers are using your radio fr...

Page 3: ...e the masking tape and the servo lead from the thread 5 Repeat step 2 5 to install the second aileron servo in the opposite wing half Make certain the hinges are adequately secured with glue If they c...

Page 4: ...nut against and then install the metal M3 clevis to the other side of the pushrod wire 3 Plug the aileron servo into the receiver and center the servo Install the servo arm onto the servo The servo a...

Page 5: ...e Wing To The Fuselage Attach the wings to the fuselage and secure the wing panels using 4 plastic screw Cut off shaded portion Assemble left and right sides the same way Aileron Aileron Neutral Ailer...

Page 6: ...off shaded portion 4mm Washer 5mm Washer 4mm Spring Washer 4 x 20mm Cap Screw 4 YAK54 MK2 Instruction Manual 5 Apply threadlocker screw cement Main Gear R Main Gear L Collar Collar Washer Washer Nut N...

Page 7: ...rrectly mix up a generous amount of 30 minute epoxy Apply a thin layer to the bottom and to the top of the stabilizer mounting area and to the stabilizer mounting platform sides in the fuselage Insert...

Page 8: ...der YAK54 MK2 Instruction Manual 7 Align the center line of horizontal tail with elevator Cut away film only here Secure nylon hinges with instant glue being careful tail wing and elevator Make certai...

Page 9: ...lide a crimp onto the cable then pass the cable through the threaded cable end Pass the cable back into the crimp and use crimping pliers to secure the crimp to the cable Guide the cable into the fuse...

Page 10: ...able rod INSTALLING THE ELEVATOR SERVO 1 Remove the covering from both size of the fuselage 2 Install two servo to the fuselage as shown 3 Repeat these step as installing the aileron control horn INST...

Page 11: ...Must be purchased separately Cut off shaded portion Pay close attention here YAK54 MK2 Instruction Manual 10 Apply threadlocker screw cement Elevator rod 3x12mm Aluminum ball...

Page 12: ...portion YAK54 MK2 Instruction Manual 11 INSTALLING THE Tail wheel 3 x 12mm TP Screw 3 x 15mm Cap Screw 2 2 2 2 3mm Spring Washer Spring Must be purchased separately 3x12mm Top Hatch Silicone Silicone...

Page 13: ...INSTALLING THE ENGINE MOUNT Apply threadlocker screw cement 4 x 30mm Screw 4mm Washer 4mm Spring Washer 4x30mm 4x30mm 4mm 4mm 4mm 4mm Engine Mount YAK54 MK2 Instruction Manual 12 3x15mm Spring...

Page 14: ...Fuel Tank YAK54 MK2 Instruction Manual 13 7 Using a modeling knife cut 3 lengths of fuel line 150mm long Connect 2 lines to the 2 vent tubes and 1 line to the fuel pickup tube in the stopper 8 Feed t...

Page 15: ...into the throttle arm of the engine when the engine is fitted onto the engine mount Fit the engine to the engine mount using the screws provided Must be purchased separately Nut 4x30mm Screw 4mm 4 8...

Page 16: ...screw INSTALLING THE THROTTLE 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 accommodat...

Page 17: ...of the engine The front of the cowl should be positioned so the crankshaft is in the middle of the precut opening Hold the cowl firmly in place using several pieces of masking tape Enlarging the hole...

Page 18: ...opeller and spinner cone The spinner cone is held in place using two screws The propeller should not touch any part of the spinner cone If it dose use a sharp modeling knife and carefully trim away th...

Page 19: ...switch 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 Plug the battery pack lead...

Page 20: ...19 White glue Check the motor rotation When rotating clock wise charge the connection of 2 wires Velcro Battery Cord 4x70mm 4x70mm 4mm 4mm 4mm 4mm Electric Speed Controller Open and Close Top Hatch Ba...

Page 21: ...g to the fuselage Using a couple of pieces of masking tape place them on the top side of the wing 137mm 5 3 in back from the leading edge at the fuselage sides YAK54 MK2 Instruction Manual 20 CONTROL...

Page 22: ...Aileron Aileron Rudder Servo YAK54 MK2 Instruction Manual 21 Elevator Control Aileron Control 11mm 11mm Rudder Control 35mm 35mm 11mm 11mm FLIGHT PREPARATION PRE FLIGHT CHECK 1 Completely charge your...

Page 23: ...22 Main Gear Dimensional Detail TAIL Gear Dimensional Detail 13 0 30 0 270 1 19 0 49 1 25 0 9 0 3 2 16 0 137 7 49 2 25 0 17 0 24 0 167 7 205 7 40 0 13 0 17 0 24 0 4 0 12 0 YAK54 MK2 Instruction Manual...

Page 24: ...23 EXPLODED VIEW 3mm 3mm 3mm 3x10mm TP 2mm 2mm 2x10mm 4x4mm 3x25mm 4x30mm 4x30mm 4x30mm 4mm 4mm 4mm 4mm 4x70mm 4mm 4mm 3x15mm 3x12mm 3mm 4x20mm 3x12mm 3x25mm 3x25mm 3x20mm 3x20mm 3mm 3mm...

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