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SUKHOI 31.

                                                                                  

Instruction Manual

2

  This instruction manual is designed to help you build a  great flying aeroplane. Please read this
manual thoroughly before starting assembly of your  

SUKHOI  SU31

. 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.

 

SUKHOI SU31 

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 su-
perior 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.

Содержание SUKHOI 31 BH11

Страница 1: ...CIFICATION Wingspan 1 400 mm 55 in Length 1 250 mm 49 in Weight 2 6 kg 5 72 Lbs Radio 04 channels Servo 05 servos Engine 46 2 Stroke 52 70 4 Stroke Instruction Manual book Made in Vietnam ITEM CODE BH...

Страница 2: ...read 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...

Страница 3: ...propeller Do not start the engine if people are near Do not stand in line with the side of the propel ler Make engine adjustments from behind the propeller only Do not reach around the spin ning prop...

Страница 4: ...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 Electric wir...

Страница 5: ...diameter the aileron using the control horn as a guide and screw the control horn in place 1 Using a ruler pen to draw a straight line as below picture 2 Locate nylon control horn nylon con trol horn...

Страница 6: ...e 90 degree bend down through the hole in the servo arm Install one nylon snap keeper over the wire to secure it to the arm Install the servo arm retaining screw and remove the masking tape from the a...

Страница 7: ...NUAL 7 3 Test fit the dihedral brace into each wing half The brace should slide in easily Remove covering Masking tape Apply masking tape Epoxy glue Aluminium brace Masking tape INSTALLING THE ENGINE...

Страница 8: ...SUKHOI 31 Instruction Manual 8 INSTALLING THE STOPPER ASSEMBLY cut INSTALLING THE ENGINE MOUNT 3x20mm 4x25mm FUEL TANK...

Страница 9: ...g knife cut one length of silicon fuel line the length of silicon fuel line is calculated by how the weighted clunk should rest about 8mm away from the rear of the tank and move freely inside the tank...

Страница 10: ...y This Z bend should be inserted 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 Do not secure the tank...

Страница 11: ...SUKHOI 31 INSTRUCTION MANUAL 11 Secure Pushrod wire Trim and cut 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...

Страница 12: ...of the cowl should be positioned so the crankshaft is in nearly the middle of the cowl opening Hold the cowl firmly in place using pieces of masking tape 4 Install the muffler and muffler extension on...

Страница 13: ...ering from the fuselage for the stabilizer and remove it HORIZONTAL STABILIZER ELEVATOR INSTALLATION Elevator servo Remove covering 2 Draw a center line onto the horizontal stabilizer Then slide the h...

Страница 14: ...asking tape or T pins used to hold the stabilizer in place and carefully inspect the glue joints Use more epoxy to fill in any gaps that were not filled previously and clean up the excess using a pape...

Страница 15: ...Elevator control horn install as same as the way of aileron control horn Please see pic tures below Control horn of elevator 3mm x 40mm M3 lock nut Nilon control clasp Pen Bottom side ELEVATOR CONTRO...

Страница 16: ...31 Instruction Manual 16 C A glue C A glue C A glue Top side Bottom side ELEVATOR PUSHROD INSTALLATION Elevator pushrod install as same as the way of aileron pushrod Elevator control horn Elevator pu...

Страница 17: ...SUKHOI 31 INSTRUCTION MANUAL 17 C A glue Cut Bend Elevator servo Bend and cut after VERTICAL INSTALLATION Rudder servo Snap keeper...

Страница 18: ...ing knife remove the covering from the top of the fuselage and the covering from over the precut hinge slot cut into the lower rear portion of the fuselage This slot accepts the lower vertical Control...

Страница 19: ...de gree to the horizontal stabilizer Pen 6 When you are sure that everything is a aligned correctly mix up a generous amount of 30 minute epoxy Apply a thin layer to the slot in the mounting platform...

Страница 20: ...stall as same as the way of aileron control horn Please see pic tures below Drill 6mm a hole of the mounting rudder control horn on to the rudder with 6mm diam eter Control horn of Rudder Pen Mark a h...

Страница 21: ...xcess 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 Servo arm C...

Страница 22: ...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 hold the battery and...

Страница 23: ...l a hole Trim 3 Using the hardware provided mount the main landing gear to the fuselage 2 A drop of C A glue on the wheel collar screws will help keep them from coming lose during operation Repeat the...

Страница 24: ...ING THE TAIL WHEEL BRACKET 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 3 Secure the tail wheel bracket...

Страница 25: ...cal that your airplane be bal anced correctly Improper balance will cause your plane to lose control and crash THE CENTER OF GRAVITY IS LOCATED 100 115mm BACK FROM THE LEADING EDGE OF THE WING 2 Mount...

Страница 26: ...heavy and you must add weigh to the nose If the nose drops it is nose heavy and you must add weight to the tail to balance If possible first attempt to balance the model by changing the position of t...

Страница 27: ...SUKHOI 31 INSTRUCTION MANUAL 27...

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