AVIATOR 25 ARF
Almost Ready-to-Fly
Instruction Manual
Specifications
Wingspan: 54.3 in (1380mm)
Length: 45.2 in (1150mm)
Wing Area: 438 sq in (34sq dm)
Flying Weight: 3.8 b (1700g)
Dear Customer,
Congratulations on your purchase of Aviator-25 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 depends 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:
ALWA YS protect your eyes when working with adhesives, knives, or tools, especially power tools.
Safety glasses are the best way to protect your eyes.
ALWA YS 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.
ALWA YS have a first-aid kit handy when working with adhesives, knives, or tools, especially power
tools.
ALWA YS keep hobby equipment and supplies out of the reach of children.
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 p art s, it will remove the
paint.
Parts table
Configuration Model Quantity
Radio 4 channel 1
Motor Size
GForce G15 Brushless Outrunner Motor（2820
KV800-1 100）
1
Speed Control 60A PRO Brushless ESC with UBEC 1
Recommended
Battery（LiPO）
GForce Elite Series 35C 2200mAh 3S11.1V or 4S14.8V
LiPO
1
Prop Size APC 14X7 or APC 13 X6.5 1
servos 36g 4
Y-Harness
Universal Servo Y-Harness （300mm）11.8-Inch (Futaba
"J" and JR Compatible)
1
Extension
Universal Servo Extension （600mm）23.6-Inch (Futaba "J"
and JR Compatible)
2
Charger GT POWER X-CHARGER C6 6S LiPO Charger 1
Section 1: Landing Gear Installation
Step 1: Locate the main landing struts,wheels,wheel collars,setscrews and landing gear straps, and
attach the both left and right wheel to the landing struts
required parts
install as shown
Repeat the steps to install
the other wheel to the
landing gear strut
Step 2. Attach the landing gear to the fuselage,as shown
Attach the main landing gear
to the fuselage as shown
use a knife to remove the
covering from the slot on the
bottom of the wing
Check to be sure that all the
parts are properly secured
Step 3 .Locate the nose landing strut, wheel, whell collars, setscrews, steering arm and attach the
wheel to the landing strut.as shown
The nose landing gear parts
Install as shown
Install the nose landing gear
on the front of the fuselage
and tighten the bolts
Section 2: Stabilizer Installation
Step 1 .Locate the Horizontal Stabilizer and elevator, attach the elevator to the stabilizer, and slide
stabilizer into the slot in the fuselage. Center the stabilizer in the fuselage(A=A’), and c heck the tips
of the stabilizer are an equal distance from the a point centered at the front of the fuselage(B=B’)
Step 2 .Locate the vertical stabilizer and rudder, attach the rudder to stabilizer, and slide stabilizer
into the slot in the fuselage. Check to ensure that the vertical stabilizer is aligned 90 degree to the
horizon stabilizer.
Step 3 .Rudder elevator pushrod horn and servos installation, two standard servos(36g) are
required
Section 3: Wing installation
Step 1.Locate the parts as shown in the picture. two standard servos(36g) and Y-harness are
required (needed to buy separately)
Step 2. Attach the aileron to the wing and install the servo into the aileron as shown
Step 3. Pushrod and horn installation as shown
Step 4.Repeat the steps 1-3 to finish installation of the servos. Use the epoxy to glue the two wing
panel together. Use the clip and gummed paper to ensure the right alignment before the epoxy fully
cures
Section 4: Nitro Motor Installation
Step 1. Locate the parts required shown in the picture below
Step 2 . Nitro Motor installation as shown
Step 3.The pushrods and servos inst allation as shown
Step 4.Fule t ank installation as shown
Section 5: Electric Motor Installation
Step 1. Locate the Motor box parts
;
Step 2. Use the Epoxy to glue the parts to the fuselage as shown in the pictures below
Motor box parts
Note: the scribed line
marks where the parts
should be glued
Section 3. Electric Motor And ESC Installation
Step 1. Locate the motor and ESC. (Not included)
Step 2. Mark the motor mounting points
Step 3. Drill through the marked points
Step 4. Use the bolts to secure the motor to he motor box.(bolts needed to buy separately)
Step 5. Drill a hole on the side of the fuselage for the ESC connection to battery as shown
Section 6 : Attaching Whe Wing To The Fuselage
Step 1.Locate the wood strap, put it on the top of the wing and use the hobby knife to remove the
covering, then glue the strap to the wing, at last use the bolts to secure the wing to fuselage. as
shown below.
Section 7: Check Assembly
Adjust the airplane to be as close as possible the description in the pictures below.
Connect the servo system and ESC to your receiver, turn on the transmitter and power, check your
RC system, motor and servos,. Make sure that all surfaces and all hardwares are secured properly.
Section 8: Setting CG and Control Throws
Recommended CG
For the first flights, the recommended Center of Gravity location is 79mm 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
For the AILERONS we recommend the following throws:
High rate: 30° left & right
Normal flight: D/R: 30% Expo: 20%
Snap: D/R: 100% Expo: 90%
Spin & 3D: D/R: 100% Expo: 90%
For the ELEVATOR we recommend the following throws:
High rate: 30° up & down
Normal flight: D/R: 30% Expo: 30%
Snap: D/R: 40% Expo: 50%
Spin & 3D: D/R: 100% Expo: 95%
For the RUDDER we recommend the following throws:
High rate: 40° left & right
Normal flight: D/R: 40% Expo: 60%
Snap: D/R: 50% Expo: 70%
Spin & 3D: D/R: 100% Expo: 90%
Note: that Futaba and Hitec radios require NEGATIVE exponential, while JR and Spektrum use
POSITIVE exponential.
Range test your radio
step1. Before fly, be sure to range check your radio as manufacturer’s instruction manual of
your radio-system recommend.
step2.
Double-check all controls (aileron, elevator, rudder and throttle) move in the correct
direction.
step3. Be sure that your LiPO battery is fully charged.
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