5mm EPP 3D Profile Airplane ARF
Instruction Manual
Yak-54
Sbach-342
Specifications
Wing Span: 34.0 in (863 mm)
Length: 36.0 in (915 mm)
Wing Area: 294.5 sq in (19 sq dm)
Flying Weight: 6.7-8.1oz (190-230 g)
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Dear Customer,
Congratulations on your purchase of 5mm EPP 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 an 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.
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RECOMMENDED RADIO EQUIPMENT
Product SKU Quantity
Radio
Flysky T6 6CH transmitter and receiver set FLY-RC-2563
1
Towerpro SG90 9g servo for aileron TWP-SV-0357
1
Servo
Towerpro SG50 5g servo for rudder and elevator TWP-SV-0352
2
RECOMMENDED POWER SETUP
Product
SKU
Motor
Gforce Emax CF2812 brushless motor
EMX-MT-0166
ESC
Hobbywing Flyfun 12A brushless ESC
HWG-SC-0236
Battery
GForce 30C 800mAh 2S LiPO
SHD-LP-2564
Prop
8 x 4E
GFH-MP-2408
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
Hot Glue Gun
Battery Powered Field Hot Glue Gun VHB-AC-2681
Glue Stick
Hot-melt Glue Stick VHB-AC-2680
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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Yak 54 Main Parts
Sbach342 Main Parts
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Accessories (Same for two planes)
1. Landing gear x2
2. Wheel x 2
3. Heat shrink tube x 2
4. Control horn x 4 set
5. Pushrod connector x 4
6. Screw x 4
7. Steel wire with z-bend x
4
8. Motor mount
9. Hook and loop tape
10. Wood accessories 1 set
Section1. Airframe Assembly
Step1. Place the four parts of the horizontal
fuselage in position on a flat work surface to make
A=B.
Use thin CA to glue them together.
Insert and glue the NO.15, NO.16 and NO.17
carbon fiber strips into the slots in the fuselage.
Step2. Slide the vertical fuselage into the horizontal
fuselage. (Align the tabs from the vertical fuselage
into the slots in the horizontal fuselage.)
Once the vertical is in the center line of the
horizontal fuselage, use the thin CA and a square to
glue two parts together. (Start at the front and
slowly work your way toward the rear of the
fuselage, gluing small sections at a time.)
Step3. Install two side force generators to the wing.
Section2. Landing Gear Installation
Step1. As shown, install the landing gears to the
fuselage.
Step2. Use the shrink tube to secure the wheels to
the landing gears.
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Section3. Carbon Rods Installation
Glue NO1. to NO 11 carbon fiber rods to the
fuselage and wing as shown.
(The slots for CF rods were pre-cut in the factory.)
Section4. Tail Skid Installation
Glue one piece of NO.15 carbon fiber strip to the
fuselage as the tail skid.
Section5. Servo Installation
Step1. Prepare three servo arm assembly with
pushrod connector
Step2. Use the hot glue to install the 9g micro
servo to the fuselage.
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Step3. Install the aileron servo arm. (Center the
servo electronically in advance.)
Step4. Install two 5g servos to the fuselage.
(Elevator and rudder servo)
Step5. Use the heat shrink tube to connect the
NO.12 carbon fiber rod and the steel wire with z
bend as the pushrod wire.
Step6. Install the control horn to the z bend
Place the wood control horn in position to make
the pushrod wire is 90 degrees aligned with the
hinge line and the holes on the control horn is
aligned with the hinge line.
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Step7. Glue the control horn mount to the aileron.
Step8. Use a drill bit to enlarge the holes for the
control horn.
Step9. Apply some thin CA to the holes and install
the control horn to the mount.
Step10. Repeat the previous steps for the other
aileron servo linkage installation.
Step11. Finish the rudder and elevator servo
linkage installation in the same procedures as
aileron servo.
(Note: two pushrod guides need to be installed to
ensure the pushrods won’t be twisted.)
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Section6. Motor Installation
Step1. Glue the EPP foam motor mount to the
plywood mount.
Step2. Use the hot glue to secure the motor mount
to the fuselage
Step3. Install the motor to the mount and install
the prop.
Center of gravity
The recommended CG is 229mm (9in) from the
airplane front end point.
Exponential for 3D flying
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www.valuehobby.com
2013-08-20
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