THUNDER TIGER sukhoi 31 User manual

JE6942
Warranty
This kit is guaranteed to be free from defects in material and workmanship at the date of purchase.
It does not cover any damage caused by use or modification. The warranty does not extend beyond
the product itself and is limited only to the original cost of the kit. By the act of building this user-
assembled kit, the user accepts all resulting in liability for damage caused by the final product. If the
buyer is not prepared to accept this liability, it can be returned new and unused to the place of
purchase for a refund. Neither your dealer nor Thunder Tiger Distributors, can accept kits for return if
construction has begun.
Notice: Adult Super Vision Required
This is not a toy. Assembly and flying of this product requires adult supervision.
Read through this book completely and become familiar with the assembly and flight of this airplane.
Inspect all parts for completeness and damage. Browse www. thundertiger. com for customer service
if you encounter any problems.
12 1
Assembly Manual
MEMO
THUNDER TIGERCORP. www.thundertiger.com
No. 4347
Specification:
Wing Span:29.3” (830mm)
Length: 29.8”(845mm) 2
WingArea: 322.4sq.in. (20.8dm )
Weight: 14oz.~15oz.(420~430g)

INTRODUCTION
Introduction
Introduction.........................................................................................................................2
Parts Drawings........................................................................................................................3
Wing…………………..........................................................................................…….…...……...4
Tail........................................................................................................................................5
Motor………...........................................................................................………….....……........6
Landing Gear………........................................................................................………….....……..7
Setup....................................................................................................................................8-10
.............................................................................................................................11
TABLEOF CONTENTS
Achecklist isprovided asbelow whichwill makeshopping for these itemseasier.
OTHER ITEMSREQUIRED FORASSEMBLY
Adhesives: You will need the
thick instant (cyanoacrylate)
adhesives.
Thank youfor yourpurchase ofthe ThunderTiger 3D SukuoiEP. You canmake t proven 3Dfun flyer
easily do any aerobatics and 3D maneuvers, includes Knife Edge, Hovering, Torque Rolls, Corbra...etc.
Made ofAnti-Impact EPP material that reduce the crash damage. Very goodfor thosewho are interested in
learning 3D-aerobatics or experienced 3D pilots who are looking fora relaxed practicing plane that can be
used bothoutdoor and indoor.
3D Sukuoi EP
his
The is designed for intermediate pilot minded.Before beginning the assembly read
the instructions thoroughly to give an understanding of the sequence of steps and a general awareness of
the recommended assembly procedures. Check the entire contents of your kit against the parts drawing
and photos to make sure that no parts are missing or damaged. This will also help you to become familiar
with each component of your plane. If you find thatany of the parts are eithermissing or damaged, please
contact ThunderTigerDistributors forCustomer Service.
Radio: A 4-channel radio with
3 micro servos and mini receiver
are required.
Battery: Recommend the use
of a ACE Power Lipo battery
3S1P 1100mAh(No.2804).
Brushless Motor: Recommend
OBL29/09-07A motor ( No.2354)
2
Paper Towel
Hobby Knife
Ruler
Pen, Pencilor Marker
Phillips&Flat Head ScrewDrivers
Scissors
Nose Plier
Drill Bit 5/64”(2mm)
TOOLSAND SUPPLIESNEEDED
Controller: ACE BLC 12A
(No. 8026) is a perfect controller
that controlling OBL motor
efficiently.
Extension Wire: 2 pieces of
extension wire inlength of 9”.
Propeller: There is 12” prop. in
the kit, yet it is only for test flight.
Recommended APC 10x4.7 SF
propeller for high performance 3D
aerobatics.
PARTS DRAWINGS
Open thebox and check that you have all theparts as shown below.
3
Fuselage (1)
Glue (1) TailGear (1)
AS6647 Fuselage
AS6648 Main Wing
AS6649 Tail AS6653 11x8 SF Propeller
AS6652 Control Horn
No.2354 OBL29/09-07A
Velcro B(1)
Firewall (1)
1.5 CFK Rod390 (2)
5 11X8 Propeller(1)
Horizontal Tail (1)
Outrunner Brushless Motor29/27-07A (1)
Aileron (L/1,R/1)
Wing (1)
AS6650 Pushrod
AS6651 Landing Gear
Vertical Fin(1)
Clevis (4)
Pushrod (4)
FRP Control Horn(4)
Reinforced Plate (1)
Superlite Wheel (2)
1.5 CFK Rod98 (2)
1.5 CFK Rod230 (2)
3x6mm Sink Screw(4)
Prop Nut (1)
Cross Mount (1)
Adaptor (1)
2x5mm Screw (3) 3x6mm Wood Screw(4)
2 CFK Rod340 (1)
1.5 CFK Rod180 (2)
Velcro A(1)
Hinge (8)
Hinge (4)
AS6336 Wheel
Landing Gear (2) Wheel Colar (2)
Mount (2)
2.3x12mm Wood Screw(1)

WING
1.Carefullyand slowlyinsert themain winginto the
fuselage thencenter itin place.
2. Gluethe CFKrods onAileron,Rudder andElevator
as indicated.
3. Installand center thehorizontal tail inplace, make
sure thehorizontal tailis perpendicularto thevertical
fin andparallel withthe mainwing. NextCA the main
wing andhorizontal tailfirmly inplace.
4. Install four CA hinges on the aileron as shown,
carefully usethe sharphobby knifeto cutthe slotson
aileron and trailingedge of wingfor thehinges.
5.Attach theaileron tothe trailingedge ofmain wing
then apply CA glue to all hinges and make sure
they are jointed well. Do the same procedure on
the other aileron.
6. Installfour CAhinges on therudder, usethe same
way as you didon aileron. Next gluethe rudderon
the verticalfin.
4
TAIL
7. Gluethe FRPcontrol horn and elevatorreinforced
plates together as shown. Make sure the two
rein forced pieces areglued properlyat eachside of
elevator sothe controlhorn couldbe installed
perpendicularly at left.
8. Do the same procedure as elevator controlhorn
to install therudder control hornas shown at right.
9. Do the same procedure onboth aileron controlhorns.
10. Cut a slot at thebottom rearfuselage, installtail
skid inplace withCA glue.
11.Drill 5/64”(2mm) pilot holes for mounting the
elevator servo, nextconnect a 12” extension wire
before you secure the servo in place. Do thesame
way onrudder servo.
12. Locate the pushrod and clevis, thread the clevis
at least 6mm then snap onto the FRP control horn,
make sure servo is in neutral position then make
Z-bend and cut the excess pushrod. Insert the
Z-bend end to the servo horn and secure the servo
horn on the servo as shown. Do the sameway to
the other pushrod.
5
Rudder

LANDING GEAR
MOTOR
13. Securethe aileronservo andattach theaileron
pushrods asshown.
14. Secure thecross mount onbrushless motor with
four 3x6mm sink screws. Install theadaptor to the
brushless motorwith three2x5mm screwsas shown.
15. CAthe firewall inplace then installthe brushless
motor on thefirewall with four3x6mm wood screws.
Next install thefurnished propeller andwith prop nut.
If user would try extreme 3D then APC 10x4.7SF
is recommended.
16. Openthe hatchand place the Lipobattery inthe
compartment. Secure the battery in placewith the
2.3X12mm woodscrew.
17. Connect the receiver and controller properly,
secure these electric devices with the furnished
wide Velcro.
18. Locate the narrow/long Velcro strip andtrim as
shown toaccommodate thefuselage opening.
Note: donot cutit offand makesure it is connected.
19. Apply the furnished glue on fuselage opening
and Velcro, wait for 10 minutes before gluing them
together. Hint: It isvery important to wait forcouple
minutes before gluing together. You may blow the
glue area and it will be cured faster. Do not
separate the Velcro. Carefully attach the Velcro to
the fuselageopening onone sidefirst thenapply the
other sideof fuselageto theVelcro.
20. Locate the landing gear wires,mounts, wheels
and stoppers. Bend the wire asshown andtrim the
excess wire.
21. Locate the landing gear mounting slot where
near theleading edge of main wing asshown.
22. Trial fit the landing gear wire and mount first,
CA the wire and landing gear mount in place
when satisfied. Note two landing gear wires are
angled properly.
23. Install the wheel andCA thewheel stopper.Make
sure wheelrotates freely.
67
Congratulations! Now you are ready to fly. Make
sure to adjust the plane as the suggestion innext
two pages.

LONGITUDE BALANCE
C.G. Mustbe set on thrustline
C.G. istoo low C.G. iscorrect
As 3D planes do a lot of hovering so it is very important to do longitude balance to make hovering much
more stable.Tryto create a small hole after the motorand on the thrust line. Get music wireor stringthen
thread the wire through the hole. Make sure that model hangs perfectly vertical as illustration. If not then
try toadjust the location ofbattery,receiver orESC toget goodlongitude balance.
Congratulations
Your done, may you have many successful flights filled with fun and lots of 3D maneuvers.
Thank you for purchasing this plane from Thunder Tiger and we look forward to providingyou with other
great R/Cproducts inthe nearfuture.
SETTING UPFOR 3DFLIGHT
1/3 1/3 1/3
Stick Travel
Servo Output High Rate
Low Rate
9
LONGITUDE BALANCE
The following control throw of 3D Sukhoi EP is merely a starting point for your radio setup and can be
tailored tofit yourflying style.
For allthree modelsthe aileronand elevatorof thesame throwsbut rudderare differentas shownbelow.
Elevator/Low Rate 1-3/4” (46mm)
Aileron-High Rate 2-3/4” (70mm)
Aileron-Low Rate 2” (50mm)
2” (50mm)
Elevator/High Rate
Control Throws
BALANCE
It is importantto balance theplane to getcorrect C.G. beforeyou fly.
Balance Point asindicated in eachdiagram.
Note: For thebest flight performanceof the Sukhoi, Ahigh center ofgravity is important.
2-3/4” (70mm)
1-3/4” (46mm)
2-1/2” (65mm)
2-1/2” (65mm)
2” (53mm)
8
Rudder /Low Rate Rudder/High Rate
CONTROL THROWS
2-1/4” (58mm)
2-1/4” (58mm) 3” (79mm)
3” (79mm)

11
30cm
Exponetial
To makeyour 3D flight successful, the most important
is to set up your radio properly and fine-tune the
exponential. We would suggest that could show the
exponential graphas theillustration.
Normally this computerized radio has dual rates or
even triple rates. Once you fly it fine with low rate in
normal flight.Next youwill haveto setup 3Drate.
We suggest the 3D-rate setting is same as low rate
setting around 1/3 of the total stick travel in the
beginning. Ifyou lookat thegraph , the middle section
of 1/3 travel are most likely the same at low rate and
3D high rate .Beyond this middle section the 3D rate
setting isfar higherthan thelow rate.
SIMULATOR
A good tool to practice 3D easier is to fly simulator.
One may say simulator is not realistic but this is not
true. There are some simulators available in the
market and itsscenery and performanceare just likea
real thing .For example, Aerofly Pro Deluxe USB
version from ikarus or Real Flight G3 from
Greatplanes are all good simulators you can choose
from .
Simulator isa mustbuy toolif youseriously wantto fly
3D aerobatics. There is no genius or born 3D pilot,
remember that practice makes perfect.30 minutes a
day on a simulator can help you do hovering, torque
roll easily aswell as otheraerobatics. Ifyou would like
to be a good 3D pilot, flying everyday is necessary.
The reaction to control the airplane will be more
nature. As there is no time to think when you do 3D
aerobatics.
Simulator practice might be perfect yet suggest to do
some actual flying as the supplemental so it will not
go too far from the real thing as there are many things
that youcan notlearn inscreen.
FLYING
Even though you set up the airplane , it needs to be
setup and fine-tuned in the air. Always start on low
rates when launch the airplane or take off of the
ground. Once you fine trim the airplane in the air then
tune the exponential setting, you will be able to fly it
all the timeon the 3Drates.
Once you got confidence to do hovering or do 3D
aerobatics, we suggest you fly it near you. The closer
the airplane, the better you fly it near you. The closer
the airplane, the better you can control the plane as
you can see it very clear even if it has a slight
movement. Theother advantage is the lower or closer
to ground, the less potential energy. It is useful for a
dead batteryor ESCcut offsuddenly.
10
SETUP