E-flite UMX Yak 54 180 BNF User Manual

UMX™ Yak 54 180

Instruction Manual
Bedienungsanleitung
Manuel d’utilisation
Manuale di Istruzioni

EN

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 superfi cial injury.

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, 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.

Age Recommendation: Not for children under
14 years. This is not a toy.

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 equip­ment (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.

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• 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.

Thank you for purchasing the E-fl ite® UMX™ Yak 54 180 ultra micro airplane with which you’ll enjoy a
bold new level of aerobatic performance. No other aerobatic design meets the challenge and demands of
precision and 3D versatility like the Yak 54 can. Recognized early on by the father of 3D, Quique Somenzini,
his Yak 54 concept ushered in a new era of RC aerobatic agility that’s now possible to experience in small
fl ying spaces indoors and out. Your UMX Yak 54 180 offers incredible speed and thrust from its specially
tuned brushless power system. But what truly makes this go-anywhere 3D thoroughbred truly special is
its incredible AS3X® System that delivers incredible precision so that you can perform aerobatics smoothly
and the control authority to pop sharply into 3D maneuvers with the stability of a giant-scale aerobat. And
despite its size, AS3X stability also helps you fl y in moderate winds without seeing so much as a bobble,
plus you’ll be able to hold high-alpha fl ight angles that have a locked-in feel.

The exceptional capabilities of the E-fl ite UMX Yak 54 180 may require a little more fi rst-fl ight preparation
than other Bind-N-Fly

®

ultra micro aircraft you may have experienced. A thorough read of this manual will
help assure that you’re equipped to successfully enjoy all the benefi ts this outstanding ultra micro model
has to offer.

Table of Contents

EN

Prefl ight Checklist ..................................................4

AS3X Stabilization Delivers

Breakthrough Performance ....................................4

Charging Warnings.................................................4

Battery Charging ....................................................5

Low Voltage Cutoff (LVC) ........................................6

Transmitter and Receiver Binding ...........................6

ESC/Receiver Arming, Battery Installation

and Center of Gravity .............................................7

Side Force Generators (SFGs) Installation ...............8

Landing Gear Installation .......................................8

Control Direction Test .............................................8

Control Centering ..................................................9

Specifi cations

17.8 in (452mm)

16.1 in (410mm)

Control Horn Settings .............................................9

Dual Rates and Expos ............................................9

DX4e and DX5e Expo Activation and Deactivation 10

Post Flight Checklist ............................................10

Flying Tips and Repairs ........................................11

Power Components Service .................................12

Troubleshooting Guide .........................................13

Limited Warranty .................................................14

Warranty and Service Information ........................16

Compliance Information for the European Union ...16

Replacement Parts ...............................................62

Optional Parts and Accessories ............................63

Installed

Motor: 180BL 3000Kv Brushless

Outrunner (EFLUM180BLB)
Receiver : Spektrum

™

6-Ch AS3X

®

Receiver with BL ESC (SPMAS6410NBL)
(3) 2.3-Gram Performance Linear Long

Throw Servo (SPMSA2030L)

Included

Battery: 150mAh 2S 7.4V 45C Li-Po,

26AWG (EFLB1502S45)

Battery Charger:

™

Celectra

2S 7.4V DC Li-Po Charger

(EFLUC1007)

2.5 oz
(70 g)

Needed to Complete

Recommended Transmitter:

Spektrum™ DSM2®/DSMX® full range
with dual-rates (DX4e and up)

To register your product online, go to www.e-fl iterc.com

3

EN

Prefl ight Checklist



1. Charge fl ight battery.

2. Install fl ight 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 expos.

7. Adjust center of gravity.

8. Perform a radio system Range Check.

9. Find a safe and open area.

10. Plan fl ight for fl ying fi eld conditions.

AS3X Stabilization Delivers Breakthrough Performance

Horizon Hobby has always made RC sport, scale
and unique aircraft with the kind of performance
experts appreciate. Now the exclusive Artificial
Stability – 3 aXis (AS3X) system helps take
performance expectations in ultra micro aircraft a
quantum leap higher.

Based on the successful use of MEMS sensor
technology within the AS3X Stabilization System
essential to Blade
helicopters, the specifically tuned AS3X System
for airplanes helps invisibly correct for turbulence,
torque and tip stalls when encountered.

®

ultra micro flybarless

Furthermore, the outstanding control agility delivers
an ultra smooth, locked-in feel that obeys your
every command with performance that’s natural
feeling. It’s so gratifying, in fact, that it’s as though
you’re the RC pilot of an expertly tuned, giant-scale
model.

AS3X will change the way you’ll want to fly now and
in the future. To see what we mean, go to
www.E-fliteRC.com/AS3X.

Charging Warnings

The Battery Charger (EFLUC1007) included with
your aircraft 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 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 40–120º F (5–49°
C). 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

4

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 leave charging batteries unattended.

• 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.

Battery Charging

Your aircraft comes with a 2S 7.4V 150mAh 45C
Li-Po battery and a 2S 7.4V DC Li-Po battery
charger that requires a 12V (11V–14V) DC power
source.

Refer to the charging 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.

Battery Charging Process

NOTICE: 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.

1. Gently press the battery connector into the
charge port located on the front of the charger.
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.

2. Press the button on the charger. The red LED
will illuminate, indicating charging has begun.

Charging a fully discharged (not over-discharg­ed) 150mAh battery takes approximately 20–30
minutes at the charger’s 300mA charge rate. The
included battery can be charged at a rate of up to
3C (600mA).

2S 7.4V 150mAh 45C

Lithium Polymer Battery

Always disconnect the fl ight battery from the
charger immediately upon completion of charging.

CAUTION: Overcharging a battery can cause

a fi re.

CAUTION: Only use a charger specifi cally

designed to charge this Li-Po battery. Failure to do
so could result in fi re, causing injury or property
damage.

CAUTION: Never exceed the recommended

charge rate.

EN

LED Indications

1. Green LED blinking .......................................................................................... Standby

2. Blinking Red LED at varying speeds ................................................................. Charging

3. Red and Green LED blinking simultaneously ..................................................... Balancing

4. Solid Green LED ............................................................................................... Full Charge

5. Red and Green LED fl ashing rapidly ................................................................. Error

5

EN

Low Voltage Cutoff (LVC)

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). Once the battery
discharges to 3V per cell, the LVC will reduce the
power to the motor in order to leave adequate
power to the receiver and servos to land the
airplane.

When the motor power decreases, land the aircraft
immediately and replace or recharge the fl ight
battery.

Always disconnect and remove the Li-Po battery
from the aircraft after each fl ight. Charge your Li-Po
battery to about half capacity before storage. Make

sure the battery charge does not fall below 3V per
cell. Failure to unplug a connected battery will result
in trickle discharge.

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.

NOTICE: Repeated fl ying to LVC will damage the
battery.

Tip: Monitor your aircraft battery’s voltage before
and after flying by using a Li-Po Cell Voltage
Checker (EFLA111, sold separately).

Transmitter and Receiver Binding

Binding is the process of programming the receiver to recognize the GUID (Globally Unique Identifi er)
code of a single specifi c transmitter. You need to ‘bind’ your chosen Spektrum™ DSM2/DSMX technology
equipped aircraft transmitter to the receiver for proper operation.

Any full range Spektrum DSM2/DSMX transmitter can bind to the DSM2/DSMX receiver. Please visit www.
bindnfl y.com for a complete list of compatible transmitters.

Binding Procedure



CAUTION: When using a Futaba transmitter with a Spektrum DSM® module, you must reverse the

throttle channel and rebind. Refer to your Spektrum module manual for binding and failsafe instructions.
Refer to your Futaba transmitter manual for instructions on reversing the throttle channel.

1. Refer to your transmitter’s unique instructions for binding to a receiver (location of transmitter’s
Bind control).

2. Make sure the fl ight battery is disconnected from the aircraft.

3. Power off your transmitter.

4. Connect the fl ight battery in the aircraft. The receiver LED will begin to fl ash rapidly (typically after
5 seconds).

5. Make sure the transmitter controls are neutral and the throttle and throttle trim are in 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 turn 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.

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