Hobby-Lobby SU-34 Fullback User manual

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Product Introduction
The Su-34 is the rst foam jet model that uses
vectored thrust control. Through controlling the
direction of the thrust nozzle, you will be able to
imitate all kinds of thrilling maneuvers that are
possible in the Full-Scale Russian aircraft.
Before Beginning Assembly
This model is designed for assembly and operation
by experienced modelers. Make sure you read
through the illustrated instructions before beginning
the assembly process. Please contact Hobby Lobby
if you have any questions regarding the assembly
or operation of your model, to discuss any potential
problem areas of assembly, or the possibility of
returning the unassembled model if you feel you
cannot complete it as described in this manual.
Table of Contents
Product Introduction .................................................2
Before Beginning Assembly......................................2
Parts Included in Kit (receiver ready version) ...........2
Main Specications (receiver ready version) ............3
Read Before Flight (general safety guidelines) .......3
Safety Instructions for Charging and
Using Li-Poly Batteries .........................................3
Safety Precautions ...................................................3
General Safety Statements ......................................3
Battery Precautions ..................................................4
Mixing Epoxy ............................................................4
Wing Install ...............................................................5
Stabilizer and Rudder Install.....................................5
Front Winglet Install ..................................................6
Defensive Radar Pod Install .....................................7
Nose Cone Install .....................................................7
Missile Install ............................................................8
Linkage Install...........................................................9
Programming Your Radio .........................................10
Checking the Mixing .................................................11
Retract Adjustment ...................................................12
70mm Fan Install ......................................................12
Flying the Su-34 Fullback .........................................13
Center of Gravity ......................................................13
Replacement Parts ...................................................14
Parts Included in Kit (receiver ready version)
• Fuselage (pre-painted and decorated) • Main wing set (pre-painted and decorated)
• Rudders • Elevators
• 64mm Ducted fans (pre-installed) (2pcs) • Brushless ESC’s 45A (pre-installed) (2pcs)
• Vectored Thrust nozzles (pre-installed) (2pcs) • Decals (pre-applied)
• Two-part 5-minute epoxy • 4-Cell Li-poly Battery 25C
• Canopy • Instructions
• Outrunner Brushless motors (pre-installed) (2pcs)
• Retractable landing gear set with steerable nosewheel

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Main Specications (receiver ready version)
Wingspan: 35-1/2" [900mm]
Length: 57" [1450mm]
Weight: 52.91oz [1500g]
Thrust: 52.91–56.43oz [1500–1600g]
Thrust to Weight: 1:1
Motor System: 3500Kv out runner brushless motor
(2pcs)
Speed Control: 45A ESC (2pcs)
Battery: 4-Cell 14.8V 3000mah 25C Li-poly
battery
Servos: 9g, (10pcs)
Read Before Flight (general safety guidelines)
1. Before each ight, please check the aircraft
using the radio system. Check the operation of
all control surfaces and the motors to make sure
they are operating properly and that none of the
clevises or connectors are damaged.
2. This aircraft is not a toy! Its operation is quite
different from RC cars and RC boats. Before
ying, please read the user manual carefully and
obey the regulation in order to enjoy a safe and
pleasant ight.
3. Before ying your model, make sure there are no
other pilots using the same frequency within 1.2
miles of your model if ying using a 72MHz radio
system. Please refrain from ying until you have
discussed who ies when so your plane does not
become damaged from stray radio signals.
4. If you nd any parts included with this model
that are defective, contact Hobby Lobby before
starting assembly.
Safety Instructions for Charging and
Using Li-Poly Batteries
• Do not put the battery on, or near anything, that
can catch re when charging.
• Always charge the battery on a non-ammable
base i.e. a metal tray.
• Do not disassemble the battery.
• Do not short-circuit the battery.
• Do not use, or leave, the battery nearby a re,
stove or heated place.
• Do not immerse the battery in water or seawater,
do not get it wet.
• Do not charge the battery near a re or under the
blazing sunlight.
• Do not drive a nail into the battery, strike it with
hammer or apply excessive weight to the battery.
• Do not impact or throw the battery.
Safety Precautions
1. Please do not change any part of the plane
without checking with Hobby Lobby. You will be
responsible for any damages caused by these
changes.
2. Your ying area should be wide-open and free
of obstacles. Never y near highways, railways,
airports, power lines or in residential areas.
3. To avoid personal injury, never y your model
near or facing people, or throw the plane in their
direction.
4. Do not y your model in strong winds or severe
weather.
5. Do not allow loose objects, tools or body parts to
get near the intake of your model. Items can be
pulled in and can damage the model or cause
personal injury.
6. Never dispose of batteries or parts of your model
in a re as it could lead to an explosion and
personal injury.
General Safety Statements
1. This aircraft is not a toy. It has been designed
for the experienced modeler and pilot. You are
responsible not to cause damage to other’s
personal property or cause personal injury.
2. Please follow the instructions provided to build,
adjust and operate your model. Use caution not to
get hands, hair or other body parts near the fans.
Doing so could cause personal injury.
3. Hobby Lobby and our dealers are not responsible
for any economic or law liability for any improper
usage or operation of this model.
4. This model is designed for use by modelers age
14 and over. This model is not recommended for
unsupervised modelers under 16 years of age.
5. Never use the model or associated electronics in
damp or rainy conditions.
6. This model is made from EPS and Polystyrene,
which can be damaged by excessive heat. Keep
you model away from excessive heat or out of
direct sunlight for extended time periods or it can
become warped and affect the ight performance
of the model.
7. Never attempt to catch your model while in ight.
8. Never leave the battery connected while the
model is unattended. Accidental operation can
occur and cause personal injury.
9. Before operating the model, make sure to turn on
the radio system and check the functions before
beginning ight.
10. Always make sure the throttle at the transmitter
has been moved to the low or off position before
connecting the motor battery.

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Battery Precautions
• Do not use the battery if it is damaged or
deformed.
• Do not solder the motor leads directly to the
battery.
• Do not reverse charge or over discharge the
battery.
• Do not reverse charge or connect the battery in
reverse to the speed control.
• Do not connect the battery to the ordinary charger
socket or car cigarette jack.
• Do not use the battery for unspecied equipment.
• Do not touch the leaking battery directly. Wash
your skin or clothes with water if they come in
contact with a damaged battery.
• Do not mix the Li-Po battery with other un-
chargeable battery.
• Do not continue charging the battery over the
prescribed time.
• Do not put the battery into a microwave oven or
high-pressure container.
• Do not use an abnormal or damaged battery.
• Do not use or store a battery under the sunlight.
• Do not use the battery near any sources that
generate static electricity (over 64V)
• Do not charge the battery when the environmental
temperature is under 32 degrees or over 130
degrees.
• If you nd the battery leaking smelling or
abnormal, stop using it.
• Keep the battery away from children.
• Use the specied charger and observe charging
requirement provided by the battery manufacturer.
• Parental supervision is required when charging or
operation is done by minors.
• Never charge the battery at a rate greater than
specied by the battery manufacturer.
• Never discharge the battery at more than 25C and
never take the voltage lower than 12V as this will
damage the battery.
• For full ight time it is recommended to cycle the
battery a minimum of three cycles before use in
your model.
• Never charge the battery on a carpet oor as this
can cause a re.
Mixing Epoxy
When mixing epoxy, make sure to use equal amounts
of Part A and Part B. Mix the epoxy thoroughly. You
will have about 3 minutes before the epoxy begins to
cure after mixing so work quickly. Do not mix epoxy
until you fully understand the assembly procedure.

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Wing Install
Read through the following steps before attaching
the wings to the fuselage. You will need to complete
these steps before the epoxy begins to cure.
Mix some epoxy to glue the wings to the fuselage.
Apply a thin layer of epoxy to the wing root and
fuselage to glue the wings to the fuselage.
Apply Epoxy
Plug the aileron servo into the lead
coming from the fuselage.
Press the wing tightly against the fuselage.
Attach the wing panels one at a time. Make
sure each panel is tight to the side of the
fuselage and the upper surface of the wing is
ush with the adjoining fuselage surface.
Stabilizer and Rudder Install
Gluing the stabilizers and rudders follows the same
procedure as gluing the wings. Make sure to align
each part equally on each side of the fuselage.

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Front Winglet Install
Gluing the front winglets is the same as all the
previous items installed. Make sure to align each
part equally on each side of the fuselage.

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Defensive Radar Pod Install
Gluing the defensive radar pod follows the
same procedure as gluing the wings. Make
sure it is aligned with the center line of the
fuselage vertically and horizontally.
Nose Cone Install
Use epoxy to glue the nose cone to the fuselage.
Make sure the nose cone ts tight on the fuselage.

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Missile Install
The large and small missiles are attached to the
wing using epoxy. A small amount of epoxy is
all that is required to glue them to the wing.
Mix a small amount of epoxy and apply
it to the notch in the large missile.
Insert the missile bracket in the slot. Make sure
the wide notch faces the front of the missile.
Wide
Narrow
Apply epoxy to the missile bracket. The
bracket is then attached to the wing.
Mix a small amount of epoxy and apply it
to the small missile. The small missile it is
attached directly to the wing as shown.

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Linkage Install
Plug the leads for the servos into your receiver. Each
lead is marked to the correct position on the receiver.
Before installing the linkages to the control
surfaces and vectored nozzles you will need
to center the servos. Use the sub-trim feature
of your radio system to center each servo.
Connect the linkages to the stabilizers and
ailerons. Adjust the clevises so the control
surfaces are aligned with the xed surfaces.
Each vectored thrust nozzle has a reference
line so it can be centered. Connect the linkage
and check this reference line. If it does not
align, adjust the clevis until it does.

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Programming Your Radio
We have included instructions to program a
SpektrumTM DX7 radio. Following these instructions
will provide both elevator and aileron vectored
thrust for your Su-34 Fullback. Different radios
may require different settings than shown.
Set the following functions under
the Input Select screen.
Make sure to set the Flaperon,
V-Tail and Delta to OFF.
You will also need to set the servo reversing to
match the settings shown in the photo for all the
surfaces to move in the correct directions.
Under Programmable Mixing 1, set ELEV
to mix to AUX2. The settings are shown in
the photo below. This is mixing the Elevator
to the Left Vectored Thrust Nozzle.
Set switch to "MIX" to Activate/Deactivate Elevator
Vectored Thrust mixing.Under Programmable
Mixing 2, set ELEV to mix to FLAP. The settings
are shown in the photo below. This is mixing the
elevator to the Right Vectored Thrust Nozzle.
Under Programmable Mixing 3, set AILE
to mix to AUX2. The settings are shown in
the photo below. This is mixing the Aileron
to the Left Vectored Thrust Nozzle.

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Under Programmable Mixing 4, set AILE
to mix to FLAP. The settings are shown in
the photo below. This is mixing the Aileron
to the Right Vectored Thrust Nozzle.
Set switch to "FLAP 2" to Activate/Deactivate
Aileron Vectored Thrust mixing.
To provide smooth ying, you will want to
adjust the radio for the following Dual Rate
and Exponential settings. This will make
your Su-34 Fullback easier to y.
Checking the Mixing
Use the following diagrams to check the mixing of the
control surfaces in relationship to the vectored thrust.
Elevator Operation
When the "MIX" switch is activated, the vectored
thrust nozzles will move in unison with the elevators.
When the elevators are centered, the vectored thrust
nozzles will be centered.
When down elevator is given, the vectored thrust
nozzles will move downward.
When up elevator is given, the vectored thrust nozzles
will move upward.
When the "MIX" switch is Deactivated the elevators
will function normally but the vectored thrust nozzles
will not move.
NOTE: Vectored thrust to Elevator mixing should be
deactivated during take off and landing of the model.

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When the "FLAP 2" switch is activated the vectored
thrust nozzles will move in unison with the ailerons.
When the ailerons are centered, the vectored thrust
nozzles will be centered.
When right aileron is given, the left vectored thrust
nozzle will move downward and the right vectored
thrust nozzle will move upward.
When left aileron is given, the left vectored thrust
nozzle will move upward and the right vectored thrust
nozzle will move downward.
If you nd that the surfaces and vectored thrust
nozzles do not move in unison as shown, you will
need to check the programming in the radio.
Retract Adjustment
The retracts are fully installed when you receive
the model and should not require adjustment.
If you nd the servos are binding at either
end of travel, it may be necessary to adjust
the end points in the radio programming.
70mm Fan Install
To replace the stock fan, or to install a 70mm fan,
carefully cut along the line shown in the photo. This
line is the seam between the fuselage and cover.
Align the 70mm fan with the concave area in the
fuselage. Note the direction of the fan in the photo.

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CG: 3-13/16"
[96mm]
Flying the Su-34 Fullback
The Su-34 has solid ight character, when own as a conventional electric ducted fan model (without
using the vectored thrust) the jet exhibits very stable and predictable ight performance. The two
64mm fans produce nearly a 1 to 1 thrust to weight ratio due to their pairing with the 3500KV outrunner
motors and the 4-cell 3000mAh battery. The ying speed is broad allowing slow landings or high
speed passes. When the vectored thrust nozzles are active, wild performance begins. Maneuvers that
are simply not possible with conventional jets are easily performed. The famous “Cobra Maneuver”
is a sharp vertical climb from level ight and then a sharp push over back to level ight. Variations;
like a vertical zoom to an impossibly tight back ip or forward ip are possible. The thrust vectoring
gives you a lot of control even at speeds that are too slow for conventional jets to perform.
The retractable landing gear is best suited to smooth runways. If ying from taller grass, hand launching
is easily accomplished. There are a couple of techniques that are helpful to learn with the Su-34.
Landing on a runway is best accomplished with the vectored thrust mixing turned off. Make a normal
approach holding just a little power and the nose raised, arresting your decent just before touchdown
with the addition of a additional power. When this is done with the thrust vectoring OFF a soft touchdown
is easy. If you leave the thrust vectoring ON you increase your chance of “ballooning” when you add
power and possibly landing harder than you anticipated. Flight times are approximately 4 minutes
and timing your ights is recommended. When belly landing the model in taller grass it is best to keep
the thrust vectoring turned ON for the landing. This allows you to really slow the model by holding the
nose up in a “Harrier” type approach and actually touching down with very little forward speed.
The Su-34 turns heads whenever it shows up at the ying eld, we
hope that you enjoy yours as much as we do.
Center of Gravity
If you use our recommended equipment you will not need to adjust the balance of your model.
If your equipment does not match our suggestions, or you change the airframe, you will need to
balance your model. The balance point of the Su-34 Fullback is as shown in the drawing.

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Replacement Parts
Main Wing Set - FWF900103
Tail Wing Set - FWF900102
Guided Missiles - FWF900110
Canopy - FWF900109
Ducted Fan Set - FWF90210
Vectored Thrush Nozzle Set - FWF900111
Retract Set - FWF900106
Decal Set - FWF900107

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Fuselage Set - FWF900104
Brushless Power System - FW3070
3000mAh 4-Cell Li-Poly Battery - FW3026
40-Amp Speed Control - FWF550504
Brushless Motor - FWF90137

Have Fun!
We hope that you have many pleasant ights with your
Sukhoi Su-34 Fullback.
Hobby Lobby International
5614 Franklin Pike Circle
Brentwood, TN 37027
www.hobby-lobby.com
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