ParkZone PKZU1580 User Manual

Ultra Micro

T-28 Trojan RTF/BNF

Instruction Manual
Bedienungsanleitung
Manuel d’utilisation
Manuale di Istruzioni

RTF

2

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 http://www.
horizonhobby.com and click on the support tab for this product.

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
super cial injury.

Meaning of Special Language:

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 and NOT a toy. 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.

Safety Precautions and Warnings

As the user of this product, you are solely
responsible for operating in a manner that
does not endanger yourself and others
or result in damage to the product or the
property of others.

This model is controlled by a radio signal
subject to interference from many sources
outside your control. This interference can
cause momentary loss of control so it is
advisable to always keep a safe distance
in all directions around your model, as this
margin will help avoid collisions or injury.

Age Recommendation: 14 years or
over. This is not a toy. This product is not

intended for use by children without direct
adult supervision.

Never operate your model with low •

transmitter batteries.

Always operate your model in open •
spaces away from full-size vehicles,
tra c and people.

Carefully follow the directions and •
warnings for this and any optional
support equipment (chargers,
rechargeable battery packs, etc.)
you use.

Keep all chemicals, small parts and •
anything electrical out of the reach
of children.

Moisture causes damage to electronics. •
Avoid water exposure to all equipment
not speci cally designed and protected
for this purpose.

Never lick or place any portion of your •
model in your mouth as it could cause
serious injury or even death.

EN

3

This exciting Ultra Micro Series edition of ParkZone’s wildly popular T-28 is a must-have for
any intermediate to experienced pilot. Like the original, it has plenty of performance for
sport aerobatics but remains a joy to  y at slower speeds if you want to throttle back and
shoot touch and gos. And, like the original, it boasts remarkably scale lines and a great
looking U.S. Navy trim scheme. Best of all, this one is small enough to  y in your backyard.

Table of Contents

Safety Precautions and Warnings ................. 3

Introduction ......................................................... 4

First Flight Preparation ..................................... 4

Maintenance Tips ............................................... 4

Battery Warnings ................................................ 5

Low Voltage Cuto (LVC) ................................. 5

Charging the Battery .......................................... 6

Transmitter and Receiver Binding ................. 7

Installing Transmitter Batteries ....................... 7

Transmitter Controls .......................................... 8

Digital Trims .......................................................... 8

Dual Rate Function .............................................8

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

Reverse Controls ..................................................9

Control Centering..............................................10

Installing Landing Gear ...................................10

Receiver Control Unit .......................................11

Arming ..................................................................11

Motor Control Test ............................................11

Adjusting Center of Gravity ...........................11

Propeller and Propeller Shaft Maint. ..........12

Flying Tips ............................................................13

Repairs ...................................................................13

Re-binding Transmitter ...................................13

Troubleshooting Guide ...................................14

Replacement Parts and Optional Parts .....15

Warranty and Service .......................................15

Contact Information .........................................16

First Flight Preparation

Remove and inspect contents•
Begin charging the  ight battery•
Install landing gear•
Install batteries into battery charger•
Install batteries into the included •

transmitter (RTF ONLY)
Install fully charged battery•
Bind the receiver to a transmitter •

(BNF ONLY)
Perform the Control Direction Test with •

the transmitter
Adjust  ight controls and transmitter•
Adjust battery for center of gravity (CG) •
Perform a radio system Range Check•
Find a safe and open area•
Plan  ight for  ying  eld conditions•

T-28 Speci cations

Wingspan

Length

Weight

16.8 in (426mm)

13.5 in (343mm)

1.30 oz (38 g)

Maintenance After Flying

Disconnect  ight battery from ESC •
(Required for Safety)

Turn o transmitter•
Remove  ight battery from aircraft•
Recharge  ight battery•
Repair or replace all damaged parts•
Store  ight battery apart from aircraft •

and monitor the battery charge
Make note of  ight conditions and  ight •

plan results, planning for future  ights

T-28 Features

Onboard Electronics

Spektrum AR6400

eiver/Servos/ESC

Rec

Battery

120mAh 3.7V 14C
Li-Po

Charger

1S 3.7V Li-Po Battery
Charger

Transmitter

DSM2 aircraft
transmitter

Bind-N-Fly

Version

Installed Installed

Included Included

Included Included

Sold

Separately

Ready to Fly

Version

Included

To register your product online, go to http://www.parkzone.com

4

EN

Battery Warnings

Never leave

charging Batteries

unattended.

Always charge

Batteries away from

flammable materials.

Never charge

Batteries outside safe

temperature range.

The Battery Charger (PKZ3240) included with
the T-28 BNF has been designed to safely
charge the Li-Po battery. You must read the
following safety instructions and warnings
before handling, charging or using the Li-Po
battery.

CAUTION: All instructions and warnings must
be followed exactly. Mishandling of Li-Po
batteries can result in a  re, 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 you do not agree with these conditions,
return your complete T-28 model in new,
unused condition to the place of
purchase immediately.

DO NOT USE A Ni-Cd OR Ni-MH •
CHARGER. Failure to charge the battery
with a compatible charger may cause  re
resulting in personal injury and/or

property damage.

Low Voltage Cuto (LVC)

The T-28 receiver features a soft low voltage
cuto (LVC) that occurs when the battery
reaches 3V per cell under load. When the soft
cuto occurs, the electronic speed control
(ESC) and receiver reduce power to the motor
(regardless of the power level set with the
throttle stick). This prevents the voltage of the
battery from dropping below 3V per cell.

While it is possible to continue  ying the
aircraft after the soft LVC occurs, this is NOT
recommended. Battery discharge after LVC
will damage the Li-Po battery, resulting in
less power and shorter  ight duration during
subsequent  ights, or complete failure of
the battery.

Never charge

Batteries outside

recommended levels.

Never charge

damaged Batteries.

Store

Batteries

safely.

If at any time during the charge process •
the battery begins to balloon or swell,
discontinue charging or discharging
immediately. Quickly and safely
disconnect the battery, then place it in
a safe area away from  ammable
materials to observe it for at least 15
minutes. Continuing to charge or
discharge a battery that has begun to
balloon or swell can result in a  re.

Store the battery at room temperature in •
a dry area for best results.

When transporting or temporarily storing •
the battery the temperature range should
be from 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  re.

Li-Po cells should not be discharged to •
below 3V each under load.

Discharging the battery after low voltage
cuto may result in loss of control. Battery
power may drop below the receiver’s
minimum operating voltage so  ight controls
do not respond to the transmitter.

Stay aware of the power level of the battery/
aircraft throughout the  ight, and when the
aircraft requires more throttle than typical,
immediately land the T-28.

Note: Battery performance is reduced in
cooler temperatures.

CAUTION: ALWAYS disconnect the battery
from the aircraft to prevent trickle discharge
of the battery. These batteries require
regular maintenance to keep them at a
usable charge level.

EN

5

Charging the Battery

Your T-28 comes with 1S 3.7V Li-Po Battery
Charger and 1S Li-Po battery. It is important
that you only charge with the included
charger, or the E- ite® Celectra™ 4-port
Charger (EFLC1004). Refer to page 4. It is
recommended to charge the battery pack
while you are assembling the aircraft. The
 ight battery will be required to con rm
proper aircraft operation in future steps.

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. Remove the cover on the bottom of the charger and install four of the included AA batteries, noting
proper polarity. Replace the cover after the AA batteries are installed.

3. Slide the battery into the slot on the charger. The end cap of the battery is specifically designed to
allow the battery to fit into the slot one way (usually with the label on the battery facing outward)
to prevent reverse polarity connection. However, check for proper alignment and polarity before
proceeding to the next step.

4. Gently press the battery and its connector into the charge jack/connector located at the bottom of
the slot in the charger.

5. When you make the connection successfully, the LED on the charger turns solid red, indicating
charging has begun.

6. Charging a fully discharged (not over-discharged) 120mAh battery takes approximately 30–40
minutes. As the battery nears full charge, the LED begins to blink.

7. When the battery is fully charged, the LED blinks approximately every 20 seconds or goes out

8. Always unplug the battery from the charger immediately upon completion of charging.

CAUTION: Overcharging a battery can cause a fire.

Note: If the LED stays on when the LiPo is removed, the AA batteries in the charger are low.

entirely.

WARNING: Failure to use the proper charger for a Li-Po battery can result in serious damage,

and if left charging long enough, will cause a  re. ALWAYS use caution when charging

Li-Po batteries.

WARNING: Selecting a charge rate higher than 1x (one times) the battery capacity on a

variable rate charger may cause a  re.

6

EN