Aviator Trainer25 ARF
Instruction Manual
Specifications
Wingspan: 54.3in (1380mm)
Length: 45.2in (1150mm)
Wing Area: 438sq in (34sq dm)
Flying Weight: 3.8lbs (1700g)
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Dear Customer,
Congratulations on your purchase of Aviator Trainer 25 ARF from Value Hobby. We thank you for your generous
support, and hope you enjoy your new airplane.
At Value Hobby, we hope to offer competitive prices, good performance, and products that you can setup and
use with ease. That’s why we extensively researched and tested this airplane, and suggested all the products
necessary for you to setup properly. We understand that you have many choices when purchasing, and we are
grateful you choose to buy from us.
As vendors, one of the most gratifying things for us is to hear from our customers. We would welcome any
suggestion to help us improve. Please make us aware of any errors and imperfections in the airplane or the
instructions, or about the setup that we suggested. We hope you’ll find our setup suggestions to be helpful, and
enjoy flying your new airplane. Please feel free to contact us at (630) 948-0947 or email us at
support@valuehobby.com
Disclaimer
By purchasing and/or building this model, user assumes ALL liability and risk involved with this product. This
model should be built and flown by an experienced pilot and only flown at AMA sanctioned sites.
Value Hobby guarantees this model to be free of defects in materials and workmanship at the date of purchase.
This warranty does not cover any parts damaged by use or modifications. In no way shall Value Hobby’s liability
exceed the original cost of the purchased model. Further, Value Hobby reserves the right to modify this warranty
without notice. Value Hobby has no control over the final stages of assembly or the material used for the final
assembly. No liability shall be assumed nor materials used for the final user-assembled product. By the act of
using the final product the user accepts all resulting liability. Value Hobby, as a R/C product vendor, provides a
top quality airplane and instructions to complete the model. The quality and flight characteristics of the finished
model depend greatly on how it is built; we cannot guarantee the performance for the completed model and
representations are expressed or implied as to the performance of the completed model. If the buyer is not
prepared to accept the liability associated with the use of this product, the buyer is advised to return this kit
immediately, in new and unused condition.
Safety in Assembly
During assembly of this aircraft, you will be asked to use sharp knives and hobby adhesives. Please follow all
safety procedures recommended by the manufacturers of the products you use, and always follow these
important guidelines:
ALWAYS protect your eyes when working with adhesives, knives, or tools, especially power tools. Safety glasses
are the best way to protect your eyes.
ALWAYS protect your body, especially your hands and fingers when using adhesives, knives, or tools, especially
power tools. Do not cut toward exposed skin with hobby knives. Do not place hobby knives on tables or benches
where they can roll off or be knocked off.
ALWAYS have a first-aid kit handy when working with adhesives, knives, or tools, especially power tools.
ALWAYS keep hobby equipment and supplies out of the reach of children.
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Safety in Flying
This is NOT a toy! It is a very high-performance RC airplane capable of high speeds and extreme maneuvers. It
should only be operated by a competent pilot in a safe area with proper supervision.
ONLY fly your aircraft in a safe, open area, away from spectators and vehicles–and where it is legal to fly.
NEVER fly over an unsafe area, such as a road or street.
Never fly too close to yourself or spectators.
Never run your motor inside a house or building with the propeller attached – Remove the prop for safety.
Required Items
CA Glue – Thin and Thick
Epoxy glue
Hobby Knife
Small Phillips Screwdriver
Set Metric Allen Wrenches
Scissors
Small Pliers
Wire Cutters
Masking tape
Optional – Heat gun
Before Starting Assembly
Examination
Unpack your airplane and examine the components. Check for damage of any kind. If you see any damage,
please contact Value Hobby immediately.
Covering
Your airplane was packed in plastic at the factory without any wrinkles in the covering. You may notice some
wrinkles now; more likely, you will notice a few in a day or two or the first time you take the plane out to the
flying field. These wrinkles are the result of wood shrinkage and/or expansion. Balsa wood changes size and
shape slightly as it is exposed to varying humidity in the air. This is a natural property of balsa wood. As your
airplane adjusts to the weather in your part of the world, wrinkles may appear and disappear. Wrinkles may be
removed with the gentle application of heat to the covering material on your airplane. The best tool to use is a
hobby heat gun. Apply the heat gently: the covering material will shrink as you apply the heat, and this will
remove the wrinkles. BE CAREFUL! Too much heat applied too quickly can damage the covering, either by
causing it to pull away from the wood at seams and corners or even by melting it. The covering will shrink at low
temperature with patient application of heat.
Wrinkles in the covering DO NOT affect flight performance.
Remove the canopy before attempting to use heat on your covering! The canopy is made of thermo-activated
plastic and WILL deform with the application of heat. Do not apply heat to the canopy.
If you need to clean your airplane, we recommend using a damp towel. The paint used on the canopy and cowl is
not safe for all cleaners. In particular, DO NOT use alcohol on these parts, it will remove the paint.
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RECOMMENDED RADIO EQUIPMENT
Product SKU Quantity
Radio
Flysky T6 6CH Radio FLY-RC-2563 1
Servo
Towerpro SG5010 Standard Servo TWP-SV-0368
4 electric
5 nitro
Y-Harness
Universal Servo Y-Harness 12-Inch (Futaba "J" and JR Compatible) AMS-AC-0869
1
Extension
Universal Servo Extension 12-Inch (Futaba "J" and JR Compatible) AMS-AC-0560
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RECOMMENDED POWER SETUP
Light Power Setup
Product
SKU
Motor
Gforce G15 (35-42) 1100KV
SAT-MT-1741
ESC
Hobbywing Flyfun 60A ESC
HWG-SC-0241
Battery
GForce Elite Series 30C 2200mAh 3S 11.1V
FLM-LP-1802
Prop
12 x 6E
EMX-MP-1769
High Power Setup
Product
SKU
Motor
Gforce G25 (35-48) 850KV
SAT-MT-1882
ESC
Hobbywing Flyfun 60A ESC
HWG-SC-0241
Battery
GForce Elite Series 30C 2200mAh 4S 14.8V
FLM-LP-1809
Prop
13 x 6.5E
EMX-MP-1765
OPTIONAL ACCESSORIES:
Product
SKU
Charger
GT Power C6 6S LiPO Charger GTP-CH-1427
Thin CA Glue
Quickie Thin CA VHB-AC-2097
Medium CA Glue
Quickie Medium CA VHB-AC-2098
Stand
Foam Field Stand VHB-AC-1997
Watt Meter
GT Power 130A Watt Meter GTP-AC-0591
T Connector Female AMS-AC-1914
Connector
T Connector Male AMS-AC-1913
LiPO Bag
LiPO charging bag VHB-LP-0330
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Main Parts:
Accessories:
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Pack 1:
Steering Arm x 1
PU Wheel x 3 Φ55*24mm (1.0inch)
Wheel Collar x 7
Landing Gear Strap x 2
Self-tapping Screws for Landing Gear Strap x 4 M3*12mm (0.5inch)
Pack2:
180cc Fuel Tank x 1
Pack3:
Electric Motor Mount x 1
Socket Head Screw M3*15mm (0.6inch) x 8
M3 Nut x 4
Washer x 4
Pack4:
Wing Joiner x 1
Wing Bolt Plate x 1
Round Head Screw M3*30mm (1.2inch) x 2
M3 Washer x 2
M2 x10mm (0.4inch) Self-tapping Screws x 2
Pack5:
Main Landing Gear Strut x 2
Nose Landing Gear x 1
Pushrod for Nose Wheel Φ1.5x380mm (15.0inch) x 1
Pushrod for Aileron Servo Φ1.8x150mm (6.0inch) x 2
Pushrod for Elevator Servo Φ1.8x600mm (23.6inch) x 1
Pushrod for Rudder Servo Φ1.8x600mm (23.6inch) x 1
Pushrod for Throttle Φ1.5x350mm (13.8inch) x 1
Pack6:
Clevis x 4
Pushrod Connector x 6
M2 x 10mm (0.4inch) Screw x 6
M2 x 16mm (0.6inch) Screw x 6
Control Horn x 3
Pack7:
Hinge x 15
Zip Ties x 2
Section1. Aileron Installation
Step1. Place T-pin or something similar to this in
the center of each hinge.
Step2. Insert the hinges into the slots pre-cut in the
aileron.
Step3. Use the hinges to place the aileron in
position. Use a hobby knife to set a gap between
the aileron and the wing. Also check the aileron
can move freely without rubbing at the wing foot.
Step4. Saturate each hinges with thin CA. make
sure to glue both the top and bottom. Once CA has
cured, gently pull on the aileron to make sure the
hinges are secure. If not, apply more CA to loose
hinges.
Step5. Flex the aileron up and down several times
to break in the hinges.
Step6. Repeat steps 1 through 6 to install the
remaining aileron.
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Section2. Aileron Servo & Linkage
Installation
Step1. Locate the items shown in picture. (Servos
sold separately.)
Step2. Use a hobby knife to remove the coverings
for the inboard servo and servo lead.
Step3. Thread the servo arm through the wing out
of the hole as shown.
(The distance between the hole and the opening
for servo is about 260mm (10.2inch), you need to
use a servo extension if your servo lead is not
enough long.)
Step4. Use a drill bit to drill four mounting holes for
the servo.
Step5. Install the servo onto the wing using four
self-tapping screws provided with the servo.
Step6. Prepare a servo arm with pushrod
connector.
Step7. Install the servo arm to the servo.
(Remember to center the servo before this.)
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Step8. Thread a clevis to the aileron servo pushrod
(
Φ1.8x150mm (6.0inch)), and connect the
clevis to the control horn.
Step9. With the pushrod wire is 90-degrees to the
hinge line and holes in the control horn aligned
with the hinge line, use a drill bit to drill the
mounting holes for control horn.
Step10. Install the control to the aileron using two
M2*16mm screws and one backplate.
Step11. With the control surface centered, tighten
the screw to secure the pushrod to the servo arm.
Step12. Repeat steps 1 through 11 to install the
remaining aileron servo & linkage.
Section3. Wing Installation
Step1. Use epoxy to glue the wing joiner into the
wing panels. Apply epoxy in the joiner pocket, all
sides of the joiner and the exposed wood on the
root rib. Start with one panel; insert the joiner,
then the opposite panel.
(Note: because the wing has dihedral, don’t insert
the joiner in the wrong direction.)
Step2. Use low-tack tape to make sure the panels
fit tightly together while the glue cures.
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Step3. Locate the items shown in the picture.
Step4. Use the hobby knife to remove the
coverings to expose the holes on the wing and
wing bolt plate.
Step5. Install the wing to the fuselage using two
M3*30mm (1.2inch) screws and two M3 washers.
Section4. Tail Set Installation
Step1. Remove the covering for the slots on the
fuselage and horizontal stabilizer.
Step2. Attach the elevator to the horizontal
stabilizer using the same way in section 1.
Step3. Position the horizontal tail and fin in the
fuselage.
(Note: Make sure the horizontal stabilizer is
centered in the fuselage and the measurement
from stabilizer tips to wing tips is equal. Also check
the horizontal stabilizer is parallel with the wing
and the fin is perpendicular with the stabilizer.)
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Step4. Use a felt-tipped pen to trace the outline of
the fin on the stabilizer and fuselage.
Step5. Use a hobby knife to remove the coverings
from fuselage and stabilizer inside the line drawn.
Step6. Use the epoxy to glue the fin and stabilizer
to the fuselage.
(Adjust the fin and stabilizer to make it satisfy the
requirements in step3.)
Step7. Attach the rudder to the fin in the same way
in section1.
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Section5. Rudder Elevator Servo &
Linkage Installation
We recommend you to install the rudder servo on
the left tray, elevator servo on the right tray.
Step1. Slide the Φ1.8x600mm (23.6inch) elevator
servo pushrod to the guiding tube. The threaded
end comes first.
Remove the coverings for the exit hole.
Step2. Thread a clevis to the pushrod, and connect
a control horn to the clevis.
Step3. With the holes aligned with the hinge line,
install the control horn to the elevator using two
M2*10mm (0.4inch) screws and backplate.
Step4. In the same ways install the control horn to
the rudder.
Note: please don’t let the rudder pushrod affect
the movement of the elevator when installing the
rudder control horn.
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Step5. Locate the items for nose wheel installation.
Step6. Assemble the nose wheel as shown.
The nose wheel mount is installed in factory.
Step7. Locate the electric motor and install it to the
fuselage.
Step8. Connect the pushrod for nose wheel to the
steering arm.
Step9. Install the nose wheel to the fuselage.
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Step10. Install two servos to the fuselage. With
rudder elevator and steering arm centered, tighten
the screw to secure the pushrods to the arm.
Step11. Install the electric motor to the mount.
Section6. Nitro Engine Installation
Step1. Position the nitro engine on the fuselage.
Step2. Install the engine to the mount.
Step3. Connect the Φ1.5 x 350mm (13.8inch)
throttle pushrod to the engine.
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Step4. Install the throttle servo. Move the servo
the throttle open position using the radio system.
Manually move the throttle arm on the carburetor
to the open position.
Secure the pushrod wire to the servo arm.
Step5. The fuel tank can be assembled as a two line
system consisting of a vent (pressure) line to the
muffler and a carburetor line. Filling and emptying of
the tank would need to be done through the
carburetor line, or an optional fuel fill valve. The tank
can also be assembled as a three line system having a
vent line, carburetor line, and fill line. If install a fill
line, puncture the top of the stopper above the
sealed off fuel tube hole. The fill and carburetor lines
should extend out 13mm beyond the stopper and the
vent line should be bent upwards and left uncut.
With the tubes installed in the stopper, the stopper
plates loosely in place with the PM3x25mm screw to
hold the assembly together.
.
Step6. Fit the stopper assembly into the tank with the
vent line pointing toward the top of the tank, but not
touching. The fuel tubing and clunks (fuel pickup) on
the carburetor and fill lines should almost reach the
back of the tank but not touch. The clunks must be
able to move freely inside the tank when assembled.
Adjust the length of the fuel tubing accordingly. When
satisfied, tighten the PM3x25mm screw in the
stopper to secure it in place (do not over-tighten).
Mark the side of the tank that must face up when
installed in the plane. We also suggest marking the
tubes in the stopper.
Step7. After install the fuel tank into the fuselage,
use two M2*10mm (0.4inch) self-tapping screws
with washers to install the hatch cover to the
fuselage.
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Section7. Landing Gear Installation
Step1. Locate the items for installing main landing
gear
Step2. Use two wheel collars to secure the wheel to
the landing gear strut.
Step3. Repeat steps 2 through 3 to install the other
wheel.
Step4. Use a hobby knife to remove the coverings
from the fuselage for the landing gear.
Step5. Insert the landing gear strut into the
pre-drilled hole in the fuselage.
Step6. Use two landing gear straps and four
M3*12mm (0.5inch) self-tapping screws to secure the
landing gear to the fuselage.
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Section8. Set CG and Control Throws
For the first flight, the recommended CG is 83.4mm
(3.3inch) behind the leading edge of the wing
against the fuselage. Use the battery pack, moving
it forward or backward to achieve the correct
balance.
Control Throws
Aileron
High Rate:
30 degree up & down
Normal Flight: D/R 30% Expo: 20%
Snap: D/R 100% Expo: 90%
Spin & 3D: D/R: 100% Expo: 90%
Elevator
High Rate:
30 degree up & down
Normal Flight: D/R 30% Expo: 30%
Snap: D/R 40% Expo: 90%
Spin & 3D: D/R: 100% Expo: 95%
Rudder
High Rate: 40 degree left & right
Normal Flight: D/R 40% Expo: 60%
Snap: D/R 50% Expo: 70%
Spin & 3D: D/R: 100% Expo: 90%
www.valuehobby.com
2013-4-9
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