Horizon Hobby SPMA3185 UM T-28 Trojan S User Manual 55553 HBZ5600 T 28 Trojan S manual MULTI indd
Horizon Hobby, LLC UM T-28 Trojan S 55553 HBZ5600 T 28 Trojan S manual MULTI indd
Users manual
Instruction Manual • Bedienungsanleitung • Manuel d’utilisation • Manuale di Istruzioni
®
UM T-28 Trojan S
RESCUE
®
®
EN
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T-28 Trojan S
WARNING: Read the ENTIRE instruction manual to become familiar with the features of the
product before operating. Failure to operate the product correctly can result in damage to the product,
personal property and cause serious injury.
This is a sophisticated hobby product. It must be operated with caution and common sense and requires
some basic mechanical ability. Failure to operate this product in a safe and responsible manner could
result in injury or damage to the product or other property. This product is not intended for use by
children without direct adult supervision. Do not use with incompatible components or alter this product
in any way outside of the instructions provided by Horizon Hobby, LLC. This manual contains instructions
for safety, operation and maintenance. It is essential to read and follow all the instructions and warnings
in the manual, prior to assembly, setup or use, in order to operate correctly and avoid damage or
serious injury.
NOTICE
All instructions, warranties and other collateral documents are subject to change at the sole discretion
of Horizon Hobby, LLC. For up-to-date product literature, visit www.horizonhobby.com and click on the
support tab for this product.
Meaning of Special Language:
The following terms are used throughout the product literature to indicate various levels of potential
harm when operating this product:
NOTICE: Procedures, which if not properly followed, create a possibility of physical property damage
AND little or no possibility of injury.
CAUTION: Procedures, which if not properly followed, create the probability of physical property
damage AND a possibility of serious injury.
WARNING: Procedures, which if not properly followed, create the probability of property damage,
collateral damage, and serious injury OR create a high probability of superfi cial injury.
Safety Precautions and Warnings
• Always keep a safe distance in all directions
around your model to avoid collisions or injury.
This model is controlled by a radio signal subject
to interference from many sources outside your
control. Interference can cause momentary loss
of control.
• Always operate your model in open spaces away
from full-size vehicles, traffi c and people.
• Always carefully follow the directions and
warnings for this and any optional support equip-
ment (chargers, rechargeable battery packs,
etc.).
• Always keep all chemicals, small parts and
anything electrical out of the reach of children.
• Always avoid water exposure to all equipment
not specifi cally designed and protected for this
purpose. Moisture causes damage to electronics.
• Never place any portion of the model in your
mouth as it could cause serious injury or
even death.
• Never operate your model with low transmitter
batteries.
• Always keep aircraft in sight and under control.
• Always use fully charged batteries.
• Always keep the transmitter powered on while
aircraft is powered.
• Always remove batteries before disassembly.
• Always keep moving parts clean.
• Always keep parts dry.
• Always let parts cool after use before touching.
• Always remove batteries after use.
• Always ensure failsafe is properly set
before fl ying.
• Never operate aircraft with damaged wiring.
• Never touch moving parts.
Age Recommendation: Not for children under 14
years. This is not a toy.
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T-28 Trojan S
Weight:
1.65 oz (47.0g) with battery
16.58 in (426mm)
13.5 in (343mm)
RTF Transmitter ........................................................................................................................................................... 4
Transmitter Batteries Installation .................................................................................................................................. 4
Transmitter Setup ........................................................................................................................................................ 4
Transmitter Setup ........................................................................................................................................................ 5
SAFE® Technology Flight Modes ................................................................................................................................... 6
Installing Landing Gear ................................................................................................................................................ 7
Settings for Control Horns ............................................................................................................................................ 7
Charging Warnings....................................................................................................................................................... 8
Charging the Flight Battery .......................................................................................................................................... 8
Installing the Flight Battery .......................................................................................................................................... 9
Binding ........................................................................................................................................................................ 9
Control Direction Test ................................................................................................................................................. 10
SAFE® Control Direction Test ...................................................................................................................................... 11
Flying ........................................................................................................................................................................ 11
Prefl ight Checklist ...................................................................................................................................................... 12
Takeoff ...................................................................................................................................................................... 12
Low Voltage Cutoff (LVC) ............................................................................................................................................ 13
Landing ..................................................................................................................................................................... 13
After Flying ................................................................................................................................................................ 13
Adjusting Trim in Flight .............................................................................................................................................. 14
Motor Service ............................................................................................................................................................ 15
Flying Tips ................................................................................................................................................................. 16
Optional First Person View (FPV) ................................................................................................................................. 16
Troubleshooting Guide ............................................................................................................................................... 17
Re-Binding the RTF Transmitter ................................................................................................................................. 17
Limited Warranty ....................................................................................................................................................... 19
Warranty and Service Contact Information ................................................................................................................. 20
FCC Information ......................................................................................................................................................... 20
IC Information ............................................................................................................................................................ 20
Compliance Information for the European Union ......................................................................................................... 20
Replacement Parts ..................................................................................................................................................... 81
Optional Parts ........................................................................................................................................................... 82
Table Of Contents
Components RTF BNF Basic
Motor:
8.5mm Brushed Motor in Gearbox (EFLRMLP6) Installed Installed
Receiver:
SAFE Receiver and ESC with Integrated Linear
Servos (SPMA3185)
Installed Installed
Aileron Servo:
Spektrum 2.3g Linear Long Offset (SPMSA2030LO)
Installed Installed
Battery:
3.7V 1S 150mAh 25C Li-Po (EFLB1501S25)
Included Sold
Separately
Battery Charger:
USB Li-Po Charger, 300mA (EFLC10081S)
Included Sold
Separately
Transmitter:
6-Channel (or more) 2.4GHz with Spektrum™
DSM2®/DSMX® technology. (EFLRMLP6)
Included Sold
Separately
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T-28 Trojan S
Remove the battery cover. Install the four
included batteries (noting proper polarity) and
reinstall the battery cover.
RTF Transmitter
Low Battery Alarm
When the battery voltage drops too
low, an alarm sounds and the LED
fl ashes. The batteries must be replaced
immediately. If this happens while fl ying,
land your aircraft as soon and as safely
as possible.
Transmitter Batteries
Installation
Throttle /
Rudder
Power LED
Battery Door
Power
Switch
Elevator Trim
Down
Aileron /
Elevator
Aileron
Trim Right
Elevator
Trim Up Aileron
Trim Left
Throttle
Trim Down
Rudder
Trim left
Throttle
Trim Up
Rudder
Trim Right
Flight
Mode
Switch
Bind /
Panic
Recovery
Trigger
Bind
Button
Ail
Dual
Rate
Button
Mode 2 shown
DXe
®
Transmitter Setup
To use a Spektrum™ DXe transmitter, download the Hobbyzone® T-28 Trojan S DXe model setup available at
www.spektrumrc.com or use the appropriate programming cable and the PC or mobile app to program the
transmitter.
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T-28 Trojan S
IMPORTANT: The installed receiver has been
programmed for operation specifi cally in this
aircraft.
To operate the SAFE® system in this aircraft, set up your
optional DSM2®/DSMX® transmitter using the chart below.
- SAFE Flight mode is selected using Channel 5
signal (high, middle, low)
- Panic Recovery mode is selected with Channel 6
signal (high, low)
IMPORTANT: A transmitter with a 2-position
Channel 5 switch will only allow the use of
position 0 or position 2 fl ight modes. If possible
assign Channel 5 in your transmitter to a
3-position switch to operate all 3 fl ight modes
(refer to your transmitter manual).
Refer to your transmitter’s manual for more information about transmitter setup.
Non Computerized Transmitter Setup
(DX4e and DX5e)
Transmitter SAFE
mode
switch
Panic Recov-
ery Switch
SAFE
Flight
Modes
Supported
Throttle, Aileron, Elevator and Rudder in Normal
Position
DX4e
(2pos switch) ACT/AUX
switch Trainer Button 2 Pos Flight
Mode
DX4e
(3pos switch) CH 5
switch Trainer Button 3 Pos Flight
Mode
DX5e
(2pos switch) CH 5
switch Trainer Switch 2 Pos Flight
Mode
DX5e
(3pos switch) CH 5
switch Trainer Switch 3 Pos Flight
Mode
Computerized Transmitter Setup
(DX6e, DX6i, DX6, DX7S, DX8, DX7 G2, DX8 G2, DX9, DX18 and DX20)
Start all transmitter programming with a blank model (do a model reset), then name the model.
Set Dual Rates to: HIGH 100%
LOW 70%
DX6i 1. Go to the SETUP LIST MENU
2. Set MODELTYPE: ACRO
3. Set REVERSE: Gear Channel
4. Go to ADJUST LIST MENU
5. Set TRAVEL ADJ: Gear/Fmode (0)100%; Gear/Fmode (1) 40%
6. Set FLAPS: Norm 100; LAND 100
7. Set MIX 1: ACT; Gear Gear ACT, RATE D 0%; U + 100%, SW MIX, TRIM INH
Resulting
in: The Gear and Mix switches operate the 3 SAFE modes
Gear 0; Mix 0 = Beginner Mode
Gear 1; Mix 0 = Intermediate Mode
Gear 1; Mix 1 = Experienced Mode
The Flap switch operates Panic Recovery.
Position 0, Panic Recovery off, Position 1 Panic Recovery on.
DX7S
DX8
1. Go to the SYSTEM SETUP
2. Set MODEL TYPE: AIRPLANE
3. Set SWITCH SELECT: Change all to INH then TRAINER: AUX1, FLAP: GEAR
4. Go to the FUNCTION LIST
5. Set SERVO SETUP: Reverse AUX1
Resulting
in: Flap/Gyro Switch operates the 3 SAFE modes (0 Beginner/1 Intermediate/2 Experienced)
The Trainer/Bind button operates Panic Recovery
DX6e
DX6 G2, G3
DX7 G2
DX8 G2
DX9
DX18
DX20
1. Go to the SYSTEM SETUP
2. Set MODEL TYPE: AIRPLANE
3. Go to CHANNEL ASSIGN: click NEXT to go to Channel Input Confi g: Set GEAR: D
Set AUX1: i
4. Go to the FUNCTION LIST
5. Set SERVO SETUP: Reverse AUX1
Resulting
in: Switch D operates the 3 SAFE modes (0 beginner/1 intermediate/2 Experienced) The Bind/I
button operates Panic Recovery
Transmitter Setup
®
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T-28 Trojan S
Beginner Mode (with Self leveling):
Pitch (nose up and down) and Roll (wing
tips up and down) angles are limited to help
you keep the aircraft airborne. Release both
sticks for self-leveling.
Intermediate Mode:
The pilot is only prevented from entering
extreme fl ight conditions.
Experienced Mode:
Unlimited Flight Envelope
Panic Recovery Mode:
If you feel you have lost control in any mode,
hold the Panic Recovery trigger. The SAFE
technology will return the aircraft to a stable
attitude (wings level with a slight climb). Always
fl y at a safe altitude, as Panic Recovery may
cause the aircraft to lose some altitude when
leveling the wings. Release the Panic Recovery
trigger to turn off Panic mode and return to the
current SAFE fi ght mode.
RollPitch
RollPitch
RollPitch
Beginner Mode
(Switch Position 0)
Intermediate Mode
(Switch Position 1)
Experienced Mode
(Switch Position 2)
NOTICE: If the aircraft is upside down when the Panic
Recovery trigger is pressed, suffi cient altitude is required
for the aircraft to return to straight and level fl ight.
i
M
d
rmediate Mod
idMd
12
0
SAFE® Technology Flight Modes
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T-28 Trojan S
Settings for Control Horns
The illustration shows factory settings for linkages on the control horns.
Rudder Elevator
1. Insert the main landing gear assemblies into the plastic brackets on the bottom of the wing with the
struts toward the front of the wing.
Installing Landing Gear
2. Ensure the landing gear wires are fully inserted
into the clip so the end of the wire snaps into
place.
3. Insert the nose gear into the plastic nose gear
mount on the bottom of the fuselage.
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T-28 Trojan S
The included USB charger has been designed to
safely charge the included Li-Po battery.
CAUTION: All instructions and warnings must
be followed exactly. Mishandling of Li-Po
batteries can result in a fi re, personal injury and/or
property damage.
• NEVER CHARGE BATTERIES OVERNIGHT
• NEVER LEAVE CHARGING BATTERIES UNATTENDED
• By handling, charging or using the included Li-Po
battery, you assume all risks associated with
lithium batteries.
• If at any time the battery begins to balloon or
swell, discontinue use immediately. If charging
or discharging, discontinue and disconnect.
Continuing to use, charge or discharge a battery
that is ballooning or swelling can result in fi re.
• Always store the battery at room temperature in a
dry area for best results.
• Always transport or temporarily store the battery
in a temperature range of 40–120° F. Do not store
the battery or model in a car or direct sunlight. If
stored in a hot car, the battery can be damaged or
even catch fi re.
• Always charge batteries away from fl ammable
materials.
• Always inspect the battery before charging.
• Always disconnect the battery after charging, and
let the charger cool between charges.
• Always constantly monitor the temperature of the
battery pack while charging.
• ONLY USE A CHARGER SPECIFICALLY DESIGNED
TO CHARGE LI-PO BATTERIES. Failure to charge
the battery with a compatible charger may cause
a fi re resulting in personal injury and/or property
damage.
• Never discharge Li-Po cells to below 3V under
load.
• Never cover warning labels with hook and loop
strips.
• Never charge batteries outside recommended
levels.
• Never charge damaged batteries.
• Never attempt to dismantle or alter the charger.
• Never allow minors to charge battery packs.
• Never charge batteries in extremely hot or cold
places (recommended between 40–120° F or
5–49° C) or place in direct sunlight.
Charging Warnings
USB Li-Po
Charger
EFLC1008
SOLID RED LED
–Charging
DC Input:5.0V 350mA
DC Output:4.2V 300mA
LED OFF
–Charge
Complete
CAUTION: Once charging is complete,
immediately remove the battery. Never leave
a battery connected to the charger.
1. Insert the charger into a USB port.
2. Properly connect the battery to the charger.
3. Charging a fully discharged (not over-
discharged) 150 mAh battery takes
approximately 45 minutes. The LED goes out
when the charge is complete.
Charging the Flight Battery
CHARGING (Solid Red) .........................
MAX CHARGE (off) .............................
USB Li-Po
Charger
EFLC1008
SOLID RED LED
–Charging
DC Input:5.0V 350mA
DC Output:4.2V 300mA
LED OFF
–Charge
Complete
45
MIN.
1
USB Li-Po
Charger
EFLC1008
SOLID RED LED
–Charging
DC Input:5.0V 350mA
DC Output:4.2V 300mA
LED OFF
–Charge
Complete
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T-28 Trojan S
Installing the Flight Battery
Your T-28 Trojan S RTF transmitter comes pre-bound to the aircraft, so
binding should not be necessary.
Keep the aircraft and transmitter away from large metal objects, wireless
sources or other transmitters while installing the battery.
CAUTION: Always disconnect the Li-Po fl ight battery from the
aircraft receiver when not fl ying to avoid over-discharging the
battery. Batteries discharged to a voltage lower than the lowest approved
voltage may become damaged, resulting in loss of performance and
potential fi re when batteries are charged.
CAUTION: Always keep hands away from the propeller. When
armed, the motor will turn the propeller in response to any throttle
movement.
5
Sec.
Place aircraft on its
landing gear.
Keep immobile and
out of the wind for
5 seconds.
1.
2.
For a list of compatible DSM2/DSMX transmitters,
visit www.bindnfl y.com.
Binding
®
1. Refer to your transmitter’s unique instructions
for binding to a receiver.
2. Make sure the fl ight battery is disconnected
from the aircraft.
3. Ensure the transmitter is powered OFF.
4. Connect the fl ight battery to the aircraft and
turn the aircraft upright. The receiver LED will
begin to fl ash (typically after 5 seconds).
5. Make sure the transmitter controls are at
neutral and the throttle is in the low position.
6. Put your transmitter into bind mode.
7. After 5 to 10 seconds, the receiver status LED
will become solid, indicating that the receiver
is bound to the transmitter. If the LED does not
turn solid, refer to the Troubleshooting Guide at
the end of the manual.
8. Disconnect the fl ight battery and power the
transmitter off.
For subsequent fl ights, power ON the transmitter
for 5 seconds before connecting the fl ight battery.
Binding Procedure
23
1
4
30–32mm
30–32mm
Adjusting the Center of Gravity (CG)
The CG location is 30–32mm back from leading edge
of the wing at the root. The battery cavity is oversized to
allow for center of gravity adjustment. Start by placing the
battery at the front of the cavity, and adjust as necessary.
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T-28 Trojan S
Control Direction Test
Up Elevator (climb) Down Elevator (descend)
Rudder Left Rudder Right
1. Place the aircraft into Experienced mode (Mode
switch position 2).
2. Face the aircraft away from you.
3. Restrain the aircraft so it does not escape your
control while you are testing your transmitter
controls.
4. Move the sticks on the transmitter to ensure the
aircraft responds as shown.
5. If the aircraft responds as shown, move the SAFE®
mode switch to Beginner mode (Position 0) to
prepare to fl y.
Refer to the Binding instructions and Troubleshooting
Guide in this manual for more information. If you need
more assistance, contact the appropriate Horizon
Hobby Product Support department.
Mode 2 shown
Aileron Left Aileron Right
Experienced Mode
(Switch Position 2)
erienced Mod
12
0
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T-28 Trojan S
SAFE® Control Direction Test
Perform the Control Direction Test
to ensure the aircraft responds
correctly to your transmitter. Once
you are sure the aircraft responds
correctly, move the aircraft as
shown to ensure the SAFE system
moves the control surfaces in their
proper direction. If the control
surfaces do not respond as shown,
do not fl y the aircraft. Contact
Horizon Hobby Product Support.
The SAFE system will not activate
until the throttle stick or trim is
increased for the fi rst time after
the fl ight battery is connected.
Once the SAFE is active, the control
surfaces may move rapidly on the
aircraft. This is normal. SAFE will
remain active until the battery is
disconnected.
Aircraft
movement SAFE Reaction
ElevatorAileronRudder
Flying
In Beginner mode, when properly trimmed, your aircraft
will climb at full throttle without use of the elevator
stick.
• Set a fl ight timer for 5 minutes.
• Flying with the nose pointed toward you is one of the
hardest things to do when learning to fl y. To practice piloting
the aircraft, try fl ying in large circles high off the ground.
Throttle stick
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T-28 Trojan S
Takeoff
Hand Launch
Use the Beginner mode for takeoff in fi rst fl ights.
Get help to hand launch your aircraft so you can
concentrate on fl ying. If you must hand launch
the aircraft alone, hold the Aircraft in your
dominant hand and the transmitter in your
other hand.
Wind 0–5 mph
(0–8 km/h)
Climbs at 100%
throttle.
Wind 0–5 mph
(0–8 km/h)
Gently pull back on
the elevator stick
to lift off of the
ground.
n
9
1. Find a safe and open area.
2. Set up your transmitter to support SAFE
technology (BNF only).
3. Charge fl ight battery.
4. Install fl ight battery in aircraft.
9
5. Perform Control Direction Test.
6. Perform SAFE Control Direction Test.
5. Plan fl ight for fl ying fi eld conditions.
6. Set a fl ight timer for 5 minutes.
Prefl ight Checklist
Ground Launch
• Takeoff from a hard and level runway.
• Use the rudder control to keep the aircraft
rolling straight.
• Turn the aircraft only after it is high off the
ground.
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T-28 Trojan S
13
Wind 0–5 mph
(0–8 km/h)
CAUTION: Never catch a fl ying aircraft in
your hands. Doing so could cause
personal injury and damage to the aircraft.
45
MIN.
1
1 ft (30 cm)
USB Li-Po
Charger
EFLC1008
SOLID RED LED
–Charging
DC Input:5.0V 350mA
DC Output:4.2V 300mA
LED OFF
–Charge
Complete
When a Li-Po battery is discharged below 3V per
cell, it will not hold a charge. The aircraft’s ESC
protects the fl ight battery from over-discharge using
Low Voltage Cutoff (LVC). Before the battery charge
decreases too much, LVC removes power supplied
to the motor. Power to the motor quickly decreases
and increases, showing that some battery power is
reserved for fl ight control and safe landing.
When the motor power pulses, land the aircraft
immediately and recharge the fl ight battery.
Disconnect and remove the Li-Po battery from the
aircraft after use to prevent trickle discharge. Fully
charge your Li-Po battery before storing it. During
storage, make sure battery charge does not fall
below 3V per cell.
For your fi rst fl ights, set your transmitter timer or a
stopwatch to 4 minutes. Adjust your timer for longer
or shorter fl ights once you have fl own the model.
Flights of 6 minutes or more are achievable if using
proper throttle management.
NOTICE: Repeated fl ying to LVC will damage the battery.
Low Voltage Cutoff (LVC)
After Flying
1. Lower the throttle stick completely and do not
move the steering stick. Wait at least 5 seconds.
2. Disconnect and remove the battery from the
aircraft. Keep hands away from the propeller.
3. Power off the transmitter.
4. Fully charge the aircraft battery.
5. Remove the battery after charging is complete.
NOTICE: When you are fi nished fl ying, never
leave the aircraft in direct sunlight or in a hot,
enclosed area such as a car. Doing so can
damage the foam.
NOTICE: Always disconnect the battery from the
aircraft before powering off the transmitter or
injury and damage may result.
Repairs
Repair this aircraft using foam-compatible CA
(cyanoacrylate adhesive) glue or clear tape. Only
use foam-compatible CA glue as other types of
glue can damage the foam. When parts are not
repairable, see the Replacement Parts List for
ordering by item number.
For a listing of all replacement and optional
parts, refer to the list at the back of this manual.
NOTICE: Use of foam-compatible CA accelerant
on your aircraft can damage paint. DO NOT handle
the aircraft until the accelerant fully dries.
Landing
Reduce the airspeed on the landing approach by
lowering the throttle to 25%. Fly to the runway, keeping
the aircraft pointed into the wind and the wings level.
Approximately 1 foot (30cm) from the ground, fully
lower the throttle and gently pull back on the Elevator
stick to bleed off airspeed and fl are for landing.
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T-28 Trojan S
100%
Adjusting Trim in Flight
Familiarize yourself with your transmitter’s controls
and the aircraft’s response before fl ying by
performing the recommended Control Direction Test.
Press the trim buttons on your transmitter to adjust
how the aircraft fl ies.
If the aircraft’s nose drifts while the sticks are at
neutral (centered) and the throttle is at 50%, press
the trim buttons:
• Upper button to stop up drift
• Lower button to stop down drift
• Left button to stop right drift
• Right button to stop left drift
• Left button to stop right roll
• Right button to stop left roll
If you press a trim button until no beep sounds and the
aircraft does not fl y straight and level, land and manually
adjust the trim as described below.
Manually Adjusting Trim
Press the trim buttons to return to center (3 beeps
will sound), then use a pair of pliers to carefully bend
the metal U-Bend:
Only adjust elevator to neutral position immediately
after powering on and before SAFE has been
activated by advancing the throttle.
• Narrow for negative adjustment
(Down elevator/aileron or rudder left)
• Widen for positive adjustment
(Up elevator/aileron or rudder right)
(Up
elevator/aileron
or
rudder
right)
Direction of Drift Button to Correct
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T-28 Trojan S
Motor Service
CAUTION: DO NOT handle propeller parts
while the fl ight battery is connected. Personal
injury could result.
Disassembly
1. Disconnect the battery from the ESC/receiver.
2. Carefully cut the tape and decals on the side of
the fuselage and behind the canopy to remove the
top of the fuselage.
IMPORTANT: Removing tape or decals can remove
paint from the fuselage.
3. Hold the prop shaft using needle-nose pliers or
hemostats.
4. Turn the propeller counterclockwise (facing the
front of the model) to remove. Turn the propeller
clockwise to install.
5. Carefully remove the damaged spinner and glue
from the propeller.
6. Hold the nut (A) on the end of the prop shaft using
needle-nose pliers or hemostats.
7. Turn the gear on the shaft clockwise (facing the
front of the model) to remove the nut.
8.
Gently pull the shaft (B) from the gearbox (C) and make
sure the washer (D) and two bushings (E) are not lost.
9. Disconnect the motor from the ESC/receiver.
10. Gently push the motor out of the gearbox and
remove the motor.
NOTICE: DO NOT remove the gearbox from
the aircraft. Damage to the aircraft will result.
Assembly
• Assemble the aircraft using the instructions
above in reverse order.
• Correctly align the prop shaft gear with the pinion
gear on the motor.
• Connect the motor to the ESC/receiver
so the powered motor turns the propeller
counterclockwise (facing the front of the model).
• Make sure the propeller size numbers (112 x 90)
face away from the motor (see illustration).
• Attach the spinner to the propeller using foam-
compatible CA (Cyanoacrylate adhesive).
• Assemble the fuselage using clear tape.
B
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A
Step 2
Step 4
Steps 6-8
Step 2
Step 2
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T-28 Trojan S
Optional First Person View (FPV)
Visit the T-28 Trojan S page at www.hobbyzonerc.com for information
about optional FPV (SPMVS1100, sold separately) for this aircraft.
Fly in this area
(upwind of pilot)
Stand here
300 feet
(91 m)
Wind 0–5 mph
(0–8 km/h)
• Consult local laws and ordinances before
choosing a location to fl y your aircraft.
• Sensor Assisted Flight Envelope (SAFE®)
technology is designed as fl ight assistance,
not an autopilot. The pilot is always in control
and required to fl y the aircraft at all times.
• Start in Beginner mode (SAFE switch position
0). As you learn and become more confi dent,
change modes to advance your fl ying skills.
• Always make deliberate and steady control
stick movements for smooth control of your
aircraft.
• Fly your aircraft outside in no greater than
light winds.
• For indoor fl ight, fl y the aircraft inside in a
large gymnasium.
• Keep your aircraft in plain sight and up wind.
• Always avoid fl ying near houses, trees, wires
and buildings.
• Always avoid fl ying in areas where there
are many people, such as busy parks,
schoolyards or soccer fi elds.
Flying Tips
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T-28 Trojan S
Troubleshooting Guide (SAFE)
Problem Possible Cause Solution
Aircraft will
not respond
to throttle but
responds to
other controls
Throttle stick and/or throttle trim is
too high Reset controls with throttle stick and throttle
trim at lowest setting
Throttle channel is reversed Reverse throttle channel on transmitter
Motor is disconnected from receiver Open fuselage and ensure the plug for the
motor is properly installed
Extra propeller
noise or extra
vibration
Damaged propeller, prop shaft or
motor Replace damaged parts
Nut on prop shaft is too loose Tighten the prop shaft nut 1/2 turn
Troubleshooting Guide
Binding Procedure
1. Make sure the fl ight battery is disconnected from the aircraft. 4
2. Ensure the transmitter is powered OFF.
3. Connect the fl ight battery to the aircraft and turn the aircraft upright. The
receiver LED will begin to fl ash (typically after 5 seconds).
4. Make sure the transmitter controls are at neutral and the throttle is in the
low position.
5
5. Put your transmitter into bind mode by pushing the left control stick
vertically into the case (until it clicks) while powering ON the transmitter.
6. After 5 to 10 seconds, the receiver status LED will become solid,
indicating that the receiver is bound to the transmitter. If the LED does not
turn solid, refer to the Troubleshooting Guide at the end of the manual.
7. Disconnect the fl ight battery and power the transmitter off.
Re-Binding the RTF Transmitter
The transmitter included in the RTF package comes pre-bound to the aircraft. To re-bind the aircraft, follow
this binding table.
Problem Possible Cause Solution
Control surfaces not at
neutral position when
transmitter controls are at
neutral
Control surfaces may not have been
mechanically centered from factory Center control surfaces mechanically by
adjusting the U-bends on control
linkages
Aircraft was moved after the fl ight
battery was connected and before
sensors initialized
Keep the Aircraft upright and immobile
for 5 seconds after connecting the
battery
Aircraft fl ies inconsistently
from fl ight to fl ight Trims are moved too far from
neutral position Neutralize trims and mechanically adjust
linkages to center control surfaces
Controls oscillate in fl ight,
(Aircraft rapidly jumps or
moves)
Propeller is unbalanced, causing
excessive vibration Remove propeller and rebalance or
replace it if damaged
Nut on prop shaft is too loose,
causing excessive vibration Tighten the prop shaft nut 1/2 turn
Aircraft does not connect
to transmitter after battery
is connected
Aircraft is not upright and immobile
after battery is connected Keep the Aircraft upright and immobile
for 5 seconds after connecting the
battery
EN
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T-28 Trojan S
Problem Possible Cause Solution
Reduced fl ight
time or aircraft
underpowered
Flight battery charge is low Completely recharge fl ight battery
Propeller is installed backwards Install propeller with numbers facing forward
Flight battery is damaged Replace fl ight battery and follow fl ight battery
instructions
Flight conditions may be too cold Make sure battery is warm before use
Battery capacity is too low for fl ight
conditions Replace battery or use a larger capacity
battery
LED on receiver
fl ashes rapidly
and aircraft
will not bind
to transmitter
(during binding)
Transmitter is too near aircraft during
binding process Power off transmitter, move transmitter a
larger distance from aircraft, disconnect and
reconnect fl ight battery to aircraft and follow
binding instructions
Bind switch or button was not held
while transmitter was powered on Power off transmitter and repeat bind process
Aircraft or transmitter is too close to
large metal object, wireless source or
another transmitter
Move aircraft and transmitter to another
location and attempt binding again
LED on receiver
fl ashes rapidly
and aircraft will
not respond to
transmitter (after
binding)
Less than a 5-second wait between
fi rst powering on transmitter and
connecting fl ight battery to aircraft
Leaving transmitter on, disconnect and
reconnect fl ight battery to aircraft
Aircraft is bound to a different model
memory (ModelMatchTM radios only) Select correct model memory on transmitter
and disconnect and reconnect fl ight battery
to aircraft
Flight battery/transmitter battery
charge is too low Replace/recharge batteries
Transmitter may have been bound to
a different model (or with a different
DSM Protocol)
Select the right transmitter or bind to the new
one
Aircraft or transmitter is too close to
large metal object, wireless source or
another transmitter
Move aircraft and transmitter to another
location and attempt connecting again
Control surface
does not move Control surface, control horn, linkage
or servo damage Replace or repair damaged parts and adjust
controls
Wire damaged or connections loose Do a check of wires and connections; connect
or replace as needed
Flight battery charge is low Fully recharge fl ight battery
Control linkage does not move freely Make sure control linkage moves freely
Controls
reversed Transmitter settings reversed Do the Control Direction Test and adjust
controls on transmitter appropriately
Motor loses
power Damage to motor or power
components Do a check of motor and power components
for damage (replace as needed)
Nut on prop shaft is too tight Loosen prop shaft nut until propeller shaft
turns freely
Motor power
pulses then loss
of power
Battery power is down to the point of
receiver/ESC Low Voltage Cutoff (LVC) Recharge fl ight battery or replace battery that
is no longer performing
Servo locks or
freezes at full
travel
Travel adjust value is set above 100%
overdriving the servo Set Travel adjust to 100% or less and/or
set sub trims to Zero and adjust linkages
mechanically
EN
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T-28 Trojan S
Limited Warranty
What this Warranty Covers
Horizon Hobby, LLC, (Horizon) warrants to the original purchaser that
the product purchased (the “Product”) will be free from defects in
materials and workmanship at the date of purchase.
What is Not Covered
This warranty is not transferable and does not cover (i) cosmetic dam-
age, (ii) damage due to acts of God, accident, misuse, abuse, negli-
gence, commercial use, or due to improper use, installation, operation
or maintenance, (iii) modification of or to any part of the Product, (iv)
attempted service by anyone other than a Horizon Hobby authorized
service center, (v) Product not purchased from an authorized Horizon
dealer, (vi) Product not compliant with applicable technical regulations,
or (vii) use that violates any applicable laws, rules, or regulations.
OTHER THAN THE EXPRESS WARRANTY ABOVE, HORIZON MAKES
NO OTHER WARRANTY OR REPRESENTATION, AND HEREBY
DISCLAIMS ANY AND ALL IMPLIED WARRANTIES, INCLUDING,
WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF NON-
INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE PURCHASER ACKNOWLEDGES THAT THEY ALONE
HAVE DETERMINED THAT THE PRODUCT WILL SUITABLY MEET THE
REQUIREMENTS OF THE PURCHASER’S INTENDED USE.
Purchaser’s Remedy
Horizon’s sole obligation and purchaser’s sole and exclusive remedy
shall be that Horizon will, at its option, either (i) service, or (ii) replace,
any Product determined by Horizon to be defective. Horizon reserves
the right to inspect any and all Product(s) involved in a warranty
claim. Service or replacement decisions are at the sole discretion of
Horizon. Proof of purchase is required for all warranty claims. SERVICE
OR REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS THE
PURCHASER’S SOLE AND EXCLUSIVE REMEDY.
Limitation of Liability
HORIZON SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT,
INCIDENTAL OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR
PRODUCTION OR COMMERCIAL LOSS IN ANY WAY, REGARDLESS OF
WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, TORT,
NEGLIGENCE, STRICT LIABILITY OR ANY OTHER THEORY OF LIABILITY,
EVEN IF HORIZON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
DAMAGES. Further, in no event shall the liability of Horizon exceed the
individual price of the Product on which liability is asserted. As Horizon
has no control over use, setup, final assembly, modification or misuse,
no liability shall be assumed nor accepted for any resulting damage
or injury. By the act of use, setup or assembly, the user accepts all
resulting liability. If you as the purchaser or user are not prepared to
accept the liability associated with the use of the Product, purchaser is
advised to return the Product immediately in new and unused condi-
tion to the place of purchase.
Law
These terms are governed by Illinois law (without regard to conflict of
law principals). This warranty gives you specific legal rights, and you
may also have other rights which vary from state to state. Horizon
reserves the right to change or modify this warranty at any time
without notice.
WARRANTY SERVICES
Questions, Assistance, and Services
Your local hobby store and/or place of purchase cannot provide war-
ranty support or service. Once assembly, setup or use of the Product
has been started, you must contact your local distributor or Horizon
directly. This will enable Horizon to better answer your questions and
service you in the event that you may need any assistance. For ques-
tions or assistance, please visit our website at www.horizonhobby.
com, submit a Product Support Inquiry, or call the toll free telephone
number referenced in the Warranty and Service Contact Information
section to speak with a Product Support representative.
Inspection or Services
If this Product needs to be inspected or serviced and is compliant in
the country you live and use the Product in, please use the Horizon
Online Service Request submission process found on our website or
call Horizon to obtain a Return Merchandise Authorization (RMA) num-
ber. Pack the Product securely using a shipping carton. Please note
that original boxes may be included, but are not designed to withstand
the rigors of shipping without additional protection. Ship via a carrier
that provides tracking and insurance for lost or damaged parcels,
as Horizon is not responsible for merchandise until it arrives and is
accepted at our facility. An Online Service Request is available at http://
www.horizonhobby.com/content/service-center_render-service-center.
If you do not have internet access, please contact Horizon Product
Support to obtain a RMA number along with instructions for submitting
your product for service. When calling Horizon, you will be asked to
provide your complete name, street address, email address and phone
number where you can be reached during business hours. When
sending product into Horizon, please include your RMA number, a list
of the included items, and a brief summary of the problem. A copy of
your original sales receipt must be included for warranty consideration.
Be sure your name, address, and RMA number are clearly written on
the outside of the shipping carton.
NOTICE: Do not ship LiPo batteries to Horizon. If you have
any issue with a LiPo battery, please contact the appropriate
Horizon Product Support office.
Warranty Requirements
For Warranty consideration, you must include your original
sales receipt verifying the proof-of-purchase date. Provided
warranty conditions have been met, your Product will be serviced or
replaced free of charge. Service or replacement decisions are at the
sole discretion of Horizon.
Non-Warranty Service
Should your service not be covered by warranty, service will be com-
pleted and payment will be required without notification or estimate of
the expense unless the expense exceeds 50% of the retail purchase
cost. By submitting the item for service you are agreeing to payment
of the service without notification. Service estimates are available
upon request. You must include this request with your item submitted
for service. Non-warranty service estimates will be billed a minimum
of ½ hour of labor. In addition you will be billed for return freight.
Horizon accepts money orders and cashier’s checks, as well as Visa,
MasterCard, American Express, and Discover cards. By submitting
any item to Horizon for service, you are agreeing to Horizon’s Terms
and Conditions found on our website http://www.horizonhobby.com/
content/service-center_render-service-center.
ATTENTION: Horizon service is limited to Product compliant
in the country of use and ownership. If received, a non-com-
pliant Product will not be serviced. Further, the sender will be
responsible for arranging return shipment of the un-serviced
Product, through a carrier of the sender’s choice and at the
sender’s expense. Horizon will hold non-compliant Product
for a period of 60 days from notification, after which it will be
discarded. 10/15
EN
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®
T-28 Trojan S
Warranty and Service Contact Information
Country of Pur-
chase Horizon Hobby Contact Information Address
United States
of America
Horizon Service Center
(Repairs and Repair Requests) servicecenter.horizonhobby.com/
RequestForm/
4105 Fieldstone Rd
Champaign, Illinois, 61822 USA
Horizon Product Support
(Product Technical Assistance)
productsupport@horizonhobby.com
877-504-0233
Sales websales@horizonhobby.com
800-338-4639
European Union Horizon Technischer Service service@horizonhobby.de Hanskampring 9
D 22885 Barsbüttel, Germany
Sales: Horizon Hobby GmbH +49 (0) 4121 2655 100
FCC ID: BRWDXMTX10 and BRWSPMA3185
This equipment has been tested and found to comply with the limits for Part 15 of the FCC rules. These limits are designed
to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses
and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device
may not cause harmful interference, and (2) this device must accept any interference received, including interference that
may cause undesired operation.
NOTICE: Modifi cations to this product will void the user’s authority to operate this equipment.
FCC Information
IC Information
IC: 6175A-BRWDXMT and 6157A-SPMA3185
This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two
conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interfer-
ence that may cause undesired operation of the device.”
Compliance Information for the European Union
EU Compliance Statement:
Horizon Hobby, LLC hereby declares that this product is in compliance with the essential requirements and
other relevant provisions of the RED and EMC Directives.
A copy of the EU Declaration of Conformity is available online at: http://www.horizonhobby.com/content/support-render-compliance.
Instructions for disposal of WEEE by users in the European Union
This product must not be disposed of with other waste. Instead, it is the user’s responsibility to dispose
of their waste equipment by handing it over to a designated collections point for the recycling of waste
electrical and electronic equipment. The separate collection and recycling of your waste equipment at
the time of disposal will help to conserve natural resources and make sure that it is recycled in a manner
that protects human health and the environment. For more information about where you can drop off your
waste equipment for recycling, please contact your local city offi ce, your household waste disposal service
or where you purchased the product.
EN
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T-28 Trojan S