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YAK 55 - 

ITEM CODE:BH111.

                                                        

Instruction Manual

  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.

Please be aware that this aeroplane is not a toy and if assembled or used incorrectly it is
capable of causing injury to people or property. WHEN YOU FLY THIS AEROPLANE YOU
ASSUME ALL RISK & RESPONSIBILITY.

If you are inexperienced with basic R/C flight we strongly recommend you contact your R/C supplier
and join your local R/C Model Flying Club. R/C Model Flying Clubs offer a variety of training
procedures designed to help the new pilot on his way to successful R/C flight. They will also be able
to advise on any insurance and safety regulations that may apply.

TOOLS & SUPPLIES NEEDED.

Thick cyanoacrylate glue.

30 minute epoxy.

5 minute epoxy.

Hand or electric drill.

Assorted drill bits.

Modelling knife.

Straight edge ruler.

2mm ball driver.

Phillips head screwdriver.

220 grit sandpaper.

90° square or builder’s triangle.

Wire cutters.

Masking tape & T-pins.

Thread-lock.

Paper towels.

Some more parts.

HARDWARE PACK

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 parts. Make sure you have
the correct parts and that they fit and are
aligned properly before gluing! This will assure
proper assembly.

 

YAK 55M 

ARF is hand made

from natural materials, every plane is unique
and minor adjustments may have to be made.
However, you should find the fit superior and
assembly simple.
The painted and plastic parts used in this kit
are fuel proof. However, they are not tolerant
of many harsh chemicals including the follow-
ing: paint thinner, C/A glue accelerator, C/A glue
debonder and acetone. Do not let these chemi-
cals come in contact with the colors on the
covering and the plastic parts.

PARTS LISTING.

FUSELAGE ASSEMBLY

(1) Fuselage.

WING ASSEMBLY

(1) Right wing half with pre-installed
aileron.

(1) Left wing half with pre-installed
aileron.

Tail section assembly

(1) Vertical stabilizer with pre-
installed rudder.

(1) Horizontal stabilizer with pre-
installed elevator halves.

                       SUGGESTION.

                              NOTE.

Summary of Contents for BH111

Page 1: ...ATION 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 standard high torque servos Engine 30 cc gas Made in Vietnam Instruction Manual book ITEM COD...

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 w...

Page 3: ...m 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 PRECA...

Page 4: ...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...

Page 5: ...cture below 5 Instal servo tray with aileron servo into the wing as same as picture below INSTALLING THE AILERON CONTROL HORN Secure A B Epoxy PLUS glue Aileron Control horn Installing the aileron lin...

Page 6: ...11 Instruction Manual See pictures below Repeat the procedure for the other wing half Bottom side Aileron Secure See pictures below INSTALLING THE ENGINE MOUNT INSTALLING THE ENGINE Drill a hole 4mm d...

Page 7: ...g flight 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 8: ...ITEM CODE BH111 Instruction Manual PARTS REQUIRED 1 Assemble and mounting the wheel pants as shown in the following pictures MAIN GEAR INSTALATION Left side Secure 1 1 2 Secure Secure L a n d i n g ge...

Page 9: ...the tank It may be necessary to remove some of the flashing around the tank opening using a modeling knife If flashing is present make sure none of it falls into the tank Bottom side 6 When satisfied...

Page 10: ...l tank compartment 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 2 While keeping the back edge of the cowl flush with the m...

Page 11: ...11 YAK 55 ITEM CODE BH111 Instruction Manual Mark point 65 mm Mark point 65 mm Drill a hole 2 5mm diameter Left side Top side 3x 12mm Secure Drill a hole 2 5mm diameter Secure...

Page 12: ...eld in place using two 3mm x 8mm machine screws Front view Machine screw Secure INSTALLING THE SPINNER Secure Elevator control horn install as same as the way of aileron control horn Please see pic tu...

Page 13: ...meter 1 Install the rubber grommets and brass collets into the elevator servo Test fit the servo into the servo tray 2 Mount the servo to the tray using the mounting screws provided with your radio sy...

Page 14: ...14 YAK 55 ITEM CODE BH111 Instruction Manual Secure Left side Right side 9 mm 247 mm Drill a hole 1 5mm diameter...

Page 15: ...f aileron pushrod ELEVATOR PUSHROD INSTALLATION Secure Elevator pushrod Elevator pushrod Bottom side Rudder servo install as same as method of elevator servo See picture below Rudder servo RUDDER SERV...

Page 16: ...horn install as same as the way of aileron control horn Please see pic tures below Control horn of Rudder RUDDER CONTROL HORN AND RUDDER CABLE INSTALLATION A B Epoxy PLUS glue A B Epoxy PLUS Glue Cut...

Page 17: ...55 ITEM CODE BH111 Instruction Manual Bottom side Rudder cable Elevator pushrod MOUNTING THE TAIL WHEEL BRACKET 3x12mm 3x15mm Drill a hole 2 5mm Secure Secure Bottom side Mark point Rudder push pull...

Page 18: ...vo 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...

Page 19: ...luminium tube dihedral brace into each wing haft The brace should slide in easily If not use 220 grit sand around the edges and ends of the brace until it fits prop erly Left wing Right wing Secure E...

Page 20: ...lease start at the location we recommend 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...

Page 21: ...down Rudder 35 mm right 35mm left 1 Completely charge your transmitter and receiver batteries before your first day of fly ing 2 Check every bolt and every glue joint in your plane to ensure that ever...

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