Horizon Hobby E-flite BNF UMX HYPER TAXI User manual

Instruction Manual
Bedienungsanleitung
Manuel d’utilisation
Manuale di Istruzioni
UMX™ HYPER TAXI™

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Age Recommendation: Not for children under 14 years. This is not a toy.
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 attempt disassembly, use with incompatible
components or augment product in any way without the approval of Horizon Hobby, Inc. 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, Inc. 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 superficial injury.

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The E-flite®Ultra Micro eXtreme (UMX™) Hyper Taxi™BNF is a totally new 3D thrill ride. Combined in
one symmetrical design, you get the most fun airplane and helicopter capabilities in one convenient
package, including hyper-agility and super-solid stability for vertical takeoff and landings. Although it looks
complicated, its breakthrough AS3X™System helps make flying this clever machine enjoyable in any
attitude from stand-still hovers to forward flight. And it happens so naturally smooth you’ll find yourself
performing 3D unlike any aircraft at the flying field. High-contrast trim colors also make visual orientation
easy. And even though your new model is fully assembled, please read and follow this manual completely to
be sure you’re ready to take full advantage of what this awesome RC aircraft has to offer.
To register your product online, go to www.e-fliterc.com
Table of Contents
Preflight Checklist.................................................4
AS3X Stabilization.................................................4
Low Voltage Cutoff (LVC) .......................................4
Charging the Battery.............................................5
Battery Warnings ..................................................6
Transmitter and Receiver Binding..........................6
Installing the Flight Battery ...................................7
Arming the ESC ....................................................7
Adjusting Center of Gravity (CG) ............................8
Control Centering .................................................8
Settings for Control Horns.....................................8
Control Direction Test............................................9
Dual Rates and Expos .........................................10
DX4e and DX5e Expo Activation
and Deactivation.................................................10
Flying Tips and Repairs.......................................11
Additional Safety Precautions and Warnings........12
Service of Power Components ............................13
Troubleshooting Guide ........................................14
Troubleshooting Guide (Continued)......................15
Limited Warranty ................................................16
Warranty and Service Information.......................17
Compliance Information for the European Union..17
Replacement Parts..............................................65
Optional Parts and Accessories ...........................66
Parts Contact Information ...................................67
BL180 (Brushless) Outrunner Motor,
2500Kv (EFLUM180BL2)
DSM2 6Ch Ultra Micro AS3X™
Receiver BL-ESC HT (EFLU4751)
(4) 2.3 g Performance Linear Long
Throw Servos (SPMSA2030L)
Battery: 180mAh 2S 20C Li-Po
(EFLB1802S20)
Battery Charger: 2S 7.4V Li-Po
(EFLUC1007)
Recommended Transmitter:
Spektrum™DSM2™/DSMX®with
dual-rates and Expo (DX4e and up)
Needed to Complete
Installed
12.7 in (323mm)
14.7 in (373mm)
2.1 oz (59.6 g)

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Low Voltage Cutoff (LVC)
When a Li-Po battery is discharged below 3V per
cell, it will not hold a charge. The Hyper Taxi ESC
protects the flight 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 flight control and safe landing.
When the motor power pulses, land the aircraft
immediately and recharge the flight battery.
Disconnect and remove the Li-Po battery from the
aircraft after use to prevent trickle discharge. Before
storage, charge the Li-Po battery to full capacity.
During storage, make sure the battery charge does
not fall below 3V per cell.
Tip: Due to the quiet nature of the aircraft, you may
not hear the pulsing of the motor.
For your first flights, set your transmitter timer or a
stopwatch to 5 minutes. Adjust your timer for longer
or shorter flights once you have flown the model.
NOTICE: Repeated flying to LVC will damage
the battery.
AS3X Stabilization
DELIVERS BREAKTHROUGH PERFORMANCE
The AS3X System for airplanes is an electronic
enhancement system that makes it possible
for you to experience super-smooth flight
performance, yet still have full control authority
for sport, scale or 3D flight.
Turbulence, torque and tip stalls are just some of
the many complications to assess when trying to
achieve smooth flight. The Horizon Hobby world-
class team of RC pilots developed the AS3X System
for airplanes based on the successful use of AS3X
with ultra micro flybarless helicopters. Specially
tuned for airplanes, the AS3X System invisibly
helps with complicated corrections, allowing you
to experience ultra-smooth flight performance that
feels so natural that you’ll quickly build confidence
in the capability of the airplane.
AS3X System setup is simple. Just bind your
DSM2™/DSMX®transmitter to the model using a
basic airplane program and AS3X will assure that
the locked-in feel and control authority you want is
instantly at your command to help show off your RC
pilot skills.
AS3X will innovate the way you’ll want to fly now
and in the future. To see what we mean, go to
www.E-fliteRC.com/AS3X.
Preflight Checklist

1. Charge flight battery.
2. Install flight battery in aircraft
(once it has been fully charged).
3. Bind aircraft to transmitter.
4. Make sure linkages move freely.
5. Perform Control Direction Test with
transmitter.

6. Set dual rates and exponential.
7. Adjust center of gravity
8. Perform a radio system Range Check.
9. Find a safe and open area.
10. Plan flight for flying field conditions.

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Your E-flite®Hyper Taxi™comes with a 2-Cell 7.4V
180mAh 20C Li-Po battery and a Celectra™2S 7.4V
DC Li-Po Charger which requires a 12V (11V-14V)
DC power source.
Refer to battery warnings. It is recommended to
charge the battery pack while you are inspecting
the aircraft. The flight battery will be required to
confirm proper aircraft operation in future steps.
Please visit www.horizonhobby.com for optional
battery adapters or AC power supplies.
Charging the Battery
The Battery Charging Process
1. Charge only batteries that are cool to the touch and are not damaged. Look at the battery to make
sure it is not damaged e.g., swollen, bent, broken or punctured.
2. The connector of the battery is specifically designed to allow it to fit into the charge port one way
to prevent reverse polarity connection. However, check for proper alignment and polarity before
proceeding to the next step.
3. Gently press the battery connector into the charge port located on the front of the charger.
4. When you make the connection successfully, the green LED blinking on the charger slows,
indicating proper connection.
5. Press the button on the charger. The red LED will illuminate, indicating charging has begun.
6. Charging a fully discharged (not over-discharged) 180mAh battery takes approximately 50–60
minutes at the included charger’s charge rate of 300mAh. The included battery can be charged at a
rate up to 3C (540mAh).
7. When the battery is fully charged, the green LED will turn solid.
8. Always unplug the battery from the charger immediately upon completion of charging.
CAUTION: Overcharging a battery can cause a fire.
2S 7.4V 180mAh 20C
Lithium Polymer Battery
CAUTION: Only use a charger specifically designed to charge a Li-Po battery. Failure to do so could
result in fire causing injury or property damage.
CAUTION: Never exceed the recommended charge rate.
LED Functions under normal operation
1. Green LED blinking with power connected but without battery................................... Standby
2. Green LED blinking .................................................................................................... Battery is connected
3. Blinking Red LED at varying speeds ........................................................................... Charging
4. Red and Green LED blinking simultaneously............................................................... Balancing
5. Solid Green LED ....................................................................................................... Full Charge
6. Red and Green LED flashing rapidly ........................................................................... Error

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Binding is the process of programming the receiver of the control unit to recognize the GUID (Globally
Unique Identifier) code of a single specific transmitter. You need to ‘bind’ your chosen SpektrumTM DSM2™/
DSMX®technology equipped aircraft transmitter to the receiver for proper operation.
Any JR®or Spektrum DSM2/DSMX transmitter can bind to the AS3X™DSM®receiver. Due to the aerobatic
capabilities of the UMX™Hyper Taxi™, it is highly recommended that you use a transmitter with exponential
and dual rates. Please visit www.bindnfly.com for a complete list of compatible transmitters.
NOTICE: When using a Futaba®transmitter with a Spektrum DSM module, reversing the throttle channel
is required.
Transmitter and Receiver Binding
Binding Procedure
1. Refer to your transmitter’s unique instructions for binding to a receiver.
2. Make sure the flight battery is disconnected from the aircraft.
3. Power off the transmitter.
4. Connect the flight battery in the aircraft. The receiver LED will begin to flash rapidly, (typically after
5 seconds).
5. Make sure the transmitter controls are at neutral and the throttle and throttle trim are in the low
position.
6. Put your transmitter into bind mode. Refer to your transmitter’s manual for binding button or
switch instructions.
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 back of the manual.
For subsequent flights, power on the transmitter for 5 seconds before connecting the flight battery.
The Battery Charger (EFLUC1007) included with the
Hyper Taxi has been designed to safely charge the
Li-Po battery.
CAUTION: All instructions and warnings must
be followed exactly. Mishandling of Li-Po batteries
can result in a fire, personal injury, and/or
property damage.
• 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 fire.
• 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 40–120º F. Do not store
battery or model in a car or direct sunlight. If
stored in a hot car, the battery can be damaged or
even catch fire.
• Always charge batteries away from flammable
materials.
• NEVER USE AN Ni-Cd OR Ni-MH CHARGER. Failure
to charge the battery with a compatible charger
may cause fire 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 leave charging batteries unattended.
• Never charge batteries outside safe
temperature range.
• Never charge damaged batteries.
Battery Warnings

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1 2 3
Installing the Flight Battery
1. Attach the flight battery to the hook and loop
strip under the cockpit. See the Adjusting the
Center of Gravity instructions for the battery’s
position.
2. Place the aircraft on the ground out of the wind
and then connect a fully charged flight battery.
Ensure the aircraft is immobile for 5 seconds
so the AS3X system initializes correctly. See
the Arming the ESC instructions for correct
connection of the battery to the ESC.
NOTICE: If using a different battery than a 2-Cell
7.4V 180mAh 20C Li-Po, you will need to apply a
piece of hook and loop fastener to the back of the
battery, opposite the side with the label, in order to
hold the battery in place.
CAUTION: Always disconnect the Li-Po
battery from the aircraft ESC when not flying 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 fire when
Batteries are charged.
If you accidentally connect the battery while the throttle is fully raised, the ESC will enter programming
mode. Disconnect the battery immediately.
The AS3X system will not activate until the throttle stick or trim is increased for the first time. Once the AS3X
is active, the control surfaces may move rapidly on the aircraft. This is normal.
AS3X will remain active until the battery is disconnected.
CAUTION: Always keep hands away from the propeller. When armed, the motor will turn the propeller
in response to any throttle movement.
Arming the ESC
Arming the ESC also occurs after binding as previously described, but subsequent connection of a flight
battery requires the steps below.
Lower throttle and throttle
trim to lowest settings.
Power on the Transmitter
then wait 5 seconds
Install flight battery and
connect it to the ESC.
Keep plane immobile
and away from wind for
5 seconds.
Series of tones
Continuous LED

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Adjusting Center of Gravity (CG)
2mm
The CG location is 2mm from the rear edge of the
propeller slot.
The battery slot is oversized to allow for Center of
Gravity adjustment. Start by placing the battery at
the front edge of the battery slot with the connector
plug facing the front of the aircraft. Adjust as
needed by sliding the battery back or forward. You
may also turn the battery pack 90 degrees, bringing
the plug to the side.
Control Centering
Before the first flights, or in the event of an
accident, make sure the flight control surfaces
are centered. Adjust the linkages mechanically if
the control surfaces are not centered. Use of the
transmitter sub-trims may not correctly center the
aircraft control surfaces due to the mechanical
limits of linear servos.
1. Make sure the control surfaces are neutral
when the transmitter controls and trims are
centered. The transmitter sub-trim must be
always be set to zero.
2. When needed, use a pair of pliers to carefully
bend the metal linkage (see illustration).
3. Make the U-shape narrower to make the
connector shorter. Make the U-shape wider
to make the linkage longer.
Centering Controls After First Flights
For best performance with AS3X, it is important
that excessive trim is not used. If the model
requires excessive transmitter trim (4 or more clicks
of trim per channel), return the transmitter trim
to zero and adjust the linkages mechanically so
that the control surfaces are in the flight trimmed
position.
Settings for Control Horns
The following illustration shows the factory settings
for linkages on the control horns. After flying,
carefully adjust the linkage positions for the desired
control response.
CAUTION: Using settings other than the
factory settings, without proper experience, could
result in loss of control of your aircraft and a crash,
causing damage to the aircraft and personal injury.
All Control Surfaces

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Bind your aircraft and transmitter before performing these tests. Move the controls on the transmitter to
make sure the aircraft control surfaces move correctly, freely, and in the proper direction.
Tip: Programming for the control surfaces has already been done in the receiver of the Hyper Taxi, so no
mixing is required in the transmitter.
To demonstrate modes 1–4, only the axis being tested is shown.
Always keep throttle at low position during testing.
Control Direction Test
Up
Elevator
Down
Elevator
Left
Aileron
Right
Aileron
left
Rudder
Right
Rudder

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Dual Rates and Expos
We recommend using a DSM radio capable of dual
rates and expo due to the aerobatic capabilities
of the Hyper Taxi. The settings shown here are
recommended starting settings. Adjust according to
individual preferences after initial flight.
If using the DX4e or DX5e transmitters, we
recommend activating Expo for smoother control.
For activation and deactivation of the Expo in the
DX4e and DX5e, see below.
NOTICE: Do not set your transmitter travel adjust
over 100%. If the TRAVEL ADJUST is set over
100%, it will not result in more control movement, it
will overdrive the servo and cause damage.
It is normal for linear servos to make significant
noise. The noise is not an indication of a
faulty servo.
Tip: For the first few flights, fly the model on
low rate.
Dual Rates
High Rate Low Rate
Aileron 100% 65%
Elevator 100% 70%
Rudder 100% 70%
Expos
High Rate Low Rate
Aileron 25% 10%
Elevator 25% 10%
Rudder 25% 10%
DX4e (Modes 1 and 2)
Activate and Deactivate Expo
1. Put the ACT switch in the down position
(ON) and the Rate switch in the down
position (LO).
2. Push and hold the trainer (bind) button
and move and hold the two sticks (as
shown here for activation (A) or
deactivation (B)), while powering on
the transmitter.
3. Release the trainer switch and the
control sticks only after a series of
tones sound (ascending tones for
activation, descending tones for
deactivation).
DX4e and DX5e Expo Activation and Deactivation
If you plan to fly your Hyper Taxi with a DX4e or DX5e, disconnect the battery from the aircraft before
activating the Expo feature in your transmitter.
Once Expo is activated, it will remain activated for use through subsequent power cycles of the transmitter.
Once Expo is deactivated, it will remain deactivated until it is activated again.
A
B
DX5e (Modes 1 and 2)
Activate Expo
1. Hold the aileron trim switch to the right when
powering on the transmitter.
2. Release the aileron trim switch after a series
of ascending tones to confirm that Expo is
activated.
Deactivate Expo
1. Hold the aileron trim switch to the left when
powering on the transmitter.
2. Release the aileron trim switch after a series
of descending tones to confirm that Expo is
deactivated.