E-flite T-34 User Manual

T-34 Mentor 25 ePTS

Assembly Manual

Specifications

Wingspan: 55 in (1575mm)
Length: 44 in (1110mm)
Wing Area: 545 sq in 34.9 sq dm)
Weight w/ Battery: 4.4–4.5 lb (1.9–2.0 kg)
Weight w/o Battery: 5.0–5.2 oz (2.2–2.3 kg)

Table of Contents

Introduction

Specifications ...................................................................... 1

Introduction ......................................................................... 2

Using the Manual ................................................................ 2

Contents of Kit/Parts Layout ................................................. 3

Required Tools and Adhesives .............................................. 3

Optional Accessories ........................................................... 3

Warranty Information .......................................................... 4

Note on Lithium Polymer Batteries ........................................ 6

Warning ............................................................................. 6

Safety, Precautions, and Warnings ....................................... 6

Wing and Landing Gear Assembly ...................................... 7

Tail Installation ..................................................................10

Battery and Wing Installation ............................................. 13

Centering the Control Surfaces and

Checking Control Direction ...................................... 15

Setting the Control Throws ................................................. 22

General Maintenance ........................................................ 25

Positioning the Flaps .......................................................... 27

Removing the NACA Wing Droops .................................... 28

Operational Flap Installation (Optional) .............................. 29

Center of Gravity .............................................................. 34

Range Test Your Radio ....................................................... 34

Instructions for Disposal of WEEE by

Users in the European Union ................................... 34

Preflight ............................................................................ 35

Li-Po Battery Pack Information ............................................ 35

2008 Official AMA National Model Aircraft Safety Code ... 38

Optional Items for Your T-34 Mentor ................................... 39

For decades, the T-34 has been the airplane in which nearly all
U.S. Navy, Marine, and Coast Guard aviators have earned their
wings of gold. Based upon the civilian Model 35 Bonanza, the
all-metal T-34 has been rugged and reliable, enduring countless
loops, rolls, stalls and hard landings at the hands of student pilots
throughout the years.

And now, E-flite provides you with the most advanced electric
training aircraft in the RC world. ePTS™ stands for Electric
Progressive Trainer System—an airplane that will allow you to go
from training to aerobatics without upgrading or purchasing a
new plane.

This warbird comes ready-to-fly—no building is required and
everything needed to fly is included. The T-34 Mentor sports
removable NACA droops and a progressive 3-position flap
system to provide extra stability and slow flying. Master the
basics, remove the droops, and change flap position to move up
to great sport performance and mild aerobatics.

Progress from student pilot to aerobatic performer with E-flite’s
T-34 Mentor 25 ePTS RTF.

Using the Manual

This manual is divided into sections to help make assembly
easier to understand, and to provide breaks between each major
section. In addition, check boxes have been placed next to each
step to keep track of each step completed. Steps with a single
circle () are performed once, while steps with two circles ( )
indicate that the step will require repeating, such as for a right or
left wing panel, two servos, etc.

Remember to take your time and follow the directions.

2 E-flite T-34 Mentor ARF Assembly Manual

Contents of Kit/Parts Layout

Required Tools and Adhesives

Large Parts:

EFL4801 Wing Set w/Ailerons
EFL4802 Fuselage
EFL4803 Tail Set
EFL4804 Cowling
EFL4805 Fuselage Hatch
EFL4806 Pushrod Set
EFL4807 Landing Gear
EFL4808 Spinner
EFL4809 Tail Cone
EFLP12080E 12x8 Electric Propeller

Tools & Equipment

EFLA250 Park Flyer Tool Assortment, 5-piece

Or Purchase Separately

EFLA257 Screwdriver, #1 and #2 Phillips

(or included with EFLA250)
Covering iron
Adjustable wrench
Pin drill
Drill bit: 1/16-inch (1.5mm), 5/64-inch (2mm)
Flat blade screwdriver
Phillips screwdriver: #1, #2
Medium CA
Threadlock
Hex wrench: 2.5mm
Ruler

Optional Accessories

EFLA110 Power Meter
EFLC3005 Celectra
EFLC505 Intelligent 1- to 5-Cell Balancing Charger
EFLB32003S 3200mAh 3S 11.1V 20C Li-Po Battery
APC12080E 12x8 Elecrtic Prop
JSP20050 ST47 Standard Servo
SPM6805 Trainer Cord
DYN4055 12-Volt, 10-Amp Power Supply

™

1- to 3-Cell Li-Po Charger

3E-flite T-34 Mentor ARF Assembly Manual

Warranty Information

Warranty Period

Horizon Hobby, Inc., (Horizon) warranties that the Products purchased
(the “Product”) will be free from defects in materials and workmanship
at the date of purchase by the Purchaser.

Limited Warranty

(a) This warranty is limited to the original Purchaser ("Purchaser") and
is not transferable. REPAIR OR REPLACEMENT AS PROVIDED UNDER
THIS WARRANTY IS THE EXCLUSIVE REMEDY OF THE PURCHASER.
This warranty covers only those Products purchased from an
authorized Horizon dealer. Third party transactions are not covered
by this warranty. Proof of purchase is required for warranty claims.
Further, Horizon reserves the right to change or modify this warranty
without notice and disclaims all other warranties, express or implied.

(b) Limitations- HORIZON MAKES NO WARRANTY OR
REPRESENTATION, EXPRESS OR IMPLIED, ABOUT NON­INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE OF THE PRODUCT. THE PURCHASER
ACKNOWLEDGES THAT THEY ALONE HAVE DETERMINED THAT
THE PRODUCT WILL SUITABLY MEET THE REQUIREMENTS OF THE
PURCHASER’S INTENDED USE.

(c) Purchaser Remedy- Horizon's sole obligation hereunder
shall be that Horizon will, at its option, (i) repair or (ii) replace, any
Product determined by Horizon to be defective. In the event of a
defect, these are the Purchaser's exclusive remedies. Horizon reserves
the right to inspect any and all equipment involved in a warranty
claim. Repair or replacement decisions are at the sole discretion of
Horizon. This warranty does not cover cosmetic damage or damage
due to acts of God, accident, misuse, abuse, negligence, commercial
use, or modification of or to any part of the Product. This warranty
does not cover damage due to improper installation, operation,
maintenance, or attempted repair by anyone other than Horizon.
Return of any goods by Purchaser must be approved in writing by
Horizon before shipment.

Damage Limits

HORIZON SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT OR
CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION
OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE
PRODUCT, WHETHER SUCH CLAIM IS BASED IN CONTRACT,
WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. 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 this Product, you are advised to return this
Product immediately in new and unused condition to the place of
purchase.

Law: These Terms are governed by Illinois law (without regard to
conflict of law principals).

Safety Precautions

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. The Product 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
injury.

4 E-flite T-34 Mentor ARF Assembly Manual

Questions, Assistance, and Repairs

Non-Warranty Repairs

Your local hobby store and/or place of purchase cannot provide
warranty support or repair. Once assembly, setup or use of the
Product has been started, you must contact Horizon directly. This will
enable Horizon to better answer your questions and service you in the
event that you may need any assistance. For questions or assistance,
please direct your email to [e-mail], or call

877.504.0233 toll free to speak to a service technician.

Inspection or Repairs

If this Product needs to be inspected or repaired, please call for a
Return Merchandise Authorization (RMA). 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. A Service Repair Request is available at www.

horizonhobby.com on the “Support” tab. If you do not have internet
access, please include a letter with your complete name, street
address, email address and phone number where you can be reached
during business days, your RMA number, a list of the included items,
method of payment for any non-warranty expenses and a brief
summary of the problem. Your original sales receipt must also be
included for warranty consideration. Be sure your name, address, and
RMA number are clearly written on the outside of the shipping carton.

Should your repair not be covered by warranty the repair
will be completed and payment will be required without
notification or estimate of the expense unless the expense
exceeds 50% of the retail purchase cost.

item for repair you are agreeing to payment of the repair without
notification. Repair estimates are available upon request. You must
include this request with your repair. Non-warranty repair estimates
will be billed a minimum of ½ hour of labor. In addition you will be
billed for return freight. Please advise us of your preferred method
of payment. Horizon accepts money orders and cashiers checks, as
well as Visa, MasterCard, American Express, and Discover cards.
If you choose to pay by credit card, please include your credit card
number and expiration date. Any repair left unpaid or unclaimed
after 90 days will be considered abandoned and will be disposed of
accordingly.

Please note: non-warranty repair is only available

By submitting the

on electronics and model engines.

Electronics and engines requiring inspection or repair should be
shipped to the following address:

Horizon Service Center

4105 Fieldstone Road

Champaign, Illinois 61822

All other Products requiring warranty inspection or repair should be
shipped to the following address:

Warranty Inspection and Repairs

To receive warranty service, you must include your original
sales receipt verifying the proof-of-purchase date. Provided warranty

conditions have been met, your Product will be repaired or replaced
free of charge. Repair or replacement decisions are at the sole
discretion of Horizon Hobby.

Horizon Product Support

4105 Fieldstone Road

Champaign, Illinois 61822

Please call 877-504-0233 with any questions or concerns
regarding this product or warranty.

5E-flite T-34 Mentor ARF Assembly Manual

Note on Lithium Polymer Batteries

Safety, Precautions, and Warnings

Lithium Polymer batteries are significantly more
volatile than alkaline or Ni-Cd/Ni-MH batteries used
in RC applications. All manufacturer’s instructions
and warnings must be followed closely. Mishandling
of Li-Po batteries can result in fire. Always follow the
manufacturer’s instructions when disposing of Lithium
Polymer batteries.

Warning

An RC aircraft is not a toy! If misused, it can cause serious bodily
harm and damage to property. Fly only in open areas, preferably
at AMA (Academy of Model Aeronautics) approved flying sites,
following all instructions included with your radio.

Keep loose items that can get entangled in the propeller away
from the prop, including loose clothing, or other objects such as
pencils and screwdrivers. Especially keep your hands away from
the propeller.

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

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

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

• Always operate your model in an open area away from cars,

traffic, or people.

• Avoid operating your model in the street where injury or

damage can occur.

• Never operate the model out into the street or populated areas

for any reason.

• Never operate your model with low transmitter batteries.

• Carefully follow the directions and warnings for this and any

optional support equipment (chargers, rechargeable battery
packs, etc.) that 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 specifically designed and protected for this
purpose.

6 E-flite T-34 Mentor ARF Assembly Manual

Wing and Landing Gear Assembly

Required Parts

Wing panel (left and right) Landing gear strap (5)
Flap linkage (fixed flap) Wing tube
Aluminum anti-rotation pin
3mm x 10mm sheet metal screw (10)

Required Tools and Adhesives

Medium CA Phillips screwdriver: #2

 1. Attach the flap linkage to the flap linkage stay. The

linkage will attach to the third hole.

 2. Connect the clevis to the flap control horn. You will

note the flap is driven down when you connect the clevis.
We will adjust this position in a few steps.

 3. Slice the aluminum anti-rotation pin into the wing. It is

suggested to use medium CA to glue the pin in place to
prevent it from falling out and getting lost.

Note: The flap will be set to the training position in this
section. Setting the flap position for your particular level
of flight skills will be covered later in the manual.

Hint: You can skip steps 1 and 2 if you plan on installing
a servo for the operational flaps. Follow the steps in the

section "Operational Flap Installation (Optional)" instead.

7E-flite T-34 Mentor ARF Assembly Manual

 4. Slide the wing tube into the wing panel at this time.

 5. Attach the landing gear to the bottom of the wing

using two landing gear straps, four 3mm x 10mm sheet
metal screws and a #2 Phillips screwdriver. Attach both
main gears at this time.

 6. Slide the two wing panels tightly together. Once

together install the wing securing strap with two screws
using a #2 Phillips screwdriver.

8 E-flite T-34 Mentor ARF Assembly Manual

 7. Slide the lead from the wing panel through the

connector stay as shown. The stay will prevent the lead
from being unplugged accidentally.

 8. Rotate the lead in the stay so the colors align

with those of the lead already installed. Plug the two
connectors together and slide them tight against the stay.

 9. Connect the flap linkage to the flap control horn. We

will adjust the flaps to their correct setting later on in the
manual in the "Positioning the Flaps" section on page 27.

9E-flite T-34 Mentor ARF Assembly Manual

Tail Installation

Required Parts

Fuselage assembly Stabilizer/elevator
Fin/rudder 3mm washer (2)
3mm locknut (2) 2mm x 8mm sheet metal screw (2)
Tail cone

Required Tools and Adhesives

Phillips screwdriver: #1, #2 Adjustable wrench
Threadlock

 1. Slide the stabilizer/elevator into the slot at the rear of

the fuselage. Make sure the control horn faces the bottom
of the fuselage. Align the holes in the stabilizer with the
holes in the fuselage. Connect the elevator pushrod to the
elevator control horn.

 2. Use a #2 Phillips screwdriver to remove the rudder

control horn. You will need to loosen both the short black
screw and control horn screw to remove the control horn.

 3. Slide the rudder partially into the fuselage. Install the

control horn so the black screw faces the rear of the
fuselage.

10 E-flite T-34 Mentor ARF Assembly Manual

 4. Slide the fin fully into position. Use two 3mm washers

and two 3mm locknuts to secure the fin. Tighten these
nuts down using an adjustable wrench.

 5. Align the control horn so it is 90 degrees to the rudder

as shown.

 6. Center the control horn vertically in the slot on the side

of the fuselage. Use a #2 Phillips screwdriver to tighten
the black screw against the rudder control rod. Use
threadlock on the screw to prevent it from vibrating loose.

11E-flite T-34 Mentor ARF Assembly Manual

 7. Use a #2 Phillips screwdriver to tighten the control

horn screw. Again, the use of threadlock is necessary to
prevent the screw from vibrating loose.

 9. Attach the tail cone to the fuselage using two 2mm x

8mm sheet metal screws and a #1 Phillips screwdriver.

 8. Screw the nylon control horn in 1/4-inch (6mm).

Connect the clevis from the rudder pushrod to the rudder
control horn.

12 E-flite T-34 Mentor ARF Assembly Manual

Battery and Wing Installation

Required Parts

Fuselage assembly Wing assembly
Motor battery Nylon wing bolt (2)

Required Tools and Adhesives

Flat screwdriver: 1/4-inch

 1. Remove the canopy from the fuselage by grasping the

canopy at the aft edge and rocking it left to right. This
will disengage the magnets that hold it in place. The front
has two pins that key into the fuselage.

 2. Use the hook and loop straps to secure the motor

battery in the fuselage. The position of the battery
can be adjusted inside the fuselage to correctly balance
the aircraft. For your initial flights, position the battery as
far forward in the fuselage as possible.

13E-flite T-34 Mentor ARF Assembly Manual

 3. Pass the leads for the ailerons (and flap) through the

cross bracing in the fuselage. Guide the tab at the front
of the wing into the slot in the fuselage.

 5. Plug the aileron lead into the receiver in the slot

marked AILE. (The flap servo is plugged into the AUX1
slot of the receiver when the optional flaps have been
installed.) Replace the canopy back onto the fuselage.
You will want to make sure you have the wires pressed
down flat and to the side of the receiver before installing
the top hatch.

 4. Use two nylon wing bolts and a flat screwdriver to

secure the wing to the fuselage.

14 E-flite T-34 Mentor ARF Assembly Manual