ALL BALSA - PLY WOOD CONSTRUCTION.
COVERED WITH ORACOVER
PIPER J-3 CUB
95% ALMOST READY TO FLY
Instruction Manual Book
Item code: BH58A.
Made in Vietnam.
- Wingspan: 2,380 mm (93.7 in).
- Length: 1,560 mm (61.42 in).
- Weight: 5.5 - 5.8 kg (12.1 - 12.79 lbs).
2
- Wing area: 80.2 dm .
2
- Wing loading: 68.58g/dm .
- Wing type: USA 35-B Airfoil.
- Servo mount: 42mm x 21mm
Parts listing required (not included)
- Radio: 05 channels.
- Servo: 06 servos.
.
SPECIFICATION:
- Engine: 120 - 2 stroke, 20 - 30 cc gas.
- Motor: Brushless outrunner 1800-2300W, 450KV.
- Propeller: Suit with your engine.
Recommended motor
and battery set up (not included):
- Motor: RIMFIRE.120.
- Lipo cell: 6 cells 4,000-5,000mAh.
- Receiver battery: 6V/ 1000-1200mAh NiMH.
- ESC: 80A.
4Installing the throttle . . . . . . . . . . . . . . . . . . 10
4Installing the fuselage servos . . . . . . . . . . . . 11
4Cowling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4Installing main gear . . . . . . . . . . . . . . . . . . . 14
4Installing horizontal stabilizer . . . . . . . . . . . . 15
4Rudder installation . . . . . . . . . . . . . . . . . . . . 16
4Installing the tail wheel . . . . . . . . . . . . . . . . . 18
4Installing the switch, receiver and battery. . . 19
4Installing cockpit fuselage. . . . . . . . . . . . . . . 19
4Wing attachment, wing strut . . . . . . . . . . . . . 21
4Installing the propeller . . . . . . . . . . . . . . . . . 23
4Balancing . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4Control throws . . . . . . . . . . . . . . . . . . . . . . . 24
4Pre-flight check. . . . . . . . . . . . . . . . . . . . . . . 24
4Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4Disclaimer. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4Suggestion . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4Note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4Safety precaution . . . . . . . . . . . . . . . . . . . . . . 4
4Tools & supplies needed. . . . . . . . . . . . . . . . . 4
4Parts listing (not included). . . . . . . . . . . . . . . . 4
4Installing the ailerons.. . . . . . . . . . . . . . . . . . . 6
4Installing the ailerons servos . . . . . . . . . . . . . 6
4Installing the control horns and linkages . . . . 7
4Installing the engine mount. . . . . . . . . . . . . . . 7
4Installing the electric motor (ep version). . . . . 8
4Installing the engine, fuel tank . . . . . . . . . . . . 9
4Installing the stopper assembly . . . . . . . . . . . 9
TABLE OF CONTENTS
Academy of Model Aeronautics: If you are not already a member of the AMA, please join! The AMA is the
governing body of model aviation and membership provides liability insurance coverage, protects modelers’
rights and interests and is required to fly at most R/C sites.
Academy of Model Aeronautics
5151 East Memorial Drive Muncie IN 47302-9252
Tele. (800) 435-9262
Fax. (765) 741-0057
Or via the Internet at: http://www.modelaircraft.org
SINCE 1939
2
Instruction manual PIPER J-3 CUB Item code: BH58A
To avoid scratching your new airplane, do not
unwrap the pieces until they are needed for assembly.
Cover your workbench with an old towel or brown paper,
both to protect the aircraft and to protect the table. Keep
a couple of jars or bowls handy to hold the small parts
after you open the bag.
SUGGESTION
Please trial fit all the parts. Make sure you have the
correct parts and that they fit and are aligned properly
before gluing! This will assure proper assembly. is
hand made from natural materials, every plane is unique
This kit
NOTE
Black Horse Model guarantees the component
parts in this kit to be free from defects in both material
and workmanship at the date of purchase by the
purchaser.
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 Black Horse
Model.
Return only the component part that is defective in
materials or workmanship. Please pack the unit carefully
and insure it, as this warranty does not cover loss or
damage in transit.
WARRANTY
DISCLAIMER
Read this disclaimer carefully before using this
product. Please strictly follow the instruction manual to
assemble and use this.
In that Black Horse Model has no control over the
final assembly or material used for final assembly, black
Horse Model is not responsible for loss of use, or other
incidental or consequential damages.
Furthermore, Black Horse Model cannot be held
liable for personal injury or property damage caused by
the use or misuse of Black Horse Model products. By the
act of using the user-assembled products, the user
accepts all resulting liability.
This instruction manual is designed to help you build a great flying aeroplane. Please read this manual thoroughly
before starting assembly. Use the parts listing below to identify all parts.
WARNING
Please be aware that this aeroplane is not a toy and if assembled or used incorrectly it is capable of
causing injury to people or property. WHEN YOU FLY THIS AEROPLANE YOU ASSUME ALL RISK &
RESPONSIBILITY.
If you are inexperienced with basic R/C flight we strongly recommend you contact your R/C supplier and join your
local R/C Model Flying Club. R/C Model Flying Clubs offer a variety of training procedures designed to help the new pilot
on his way to successful R/C flight. They will also be able to advise on any insurance and safety regulations that may
apply.
and minor adjustments may have to be made. However,
you should find the fit superior and assembly simple.
The painted and plastic parts used in this kit are fuel
proof. However, they are not tolerant of many harsh
chemicals including the following: paint thinner, C/A glue
accelerator, C/A glue debonder and acetone. Do not let
these chemicals come in contact with the colors on the
covering and the plastic parts.
Caution: This model is not a toy!
If you are a beginner to this type of powered model,
please ask an experienced model flyer for help and
support. If you attempt to operate the model without
knowing what you are doing you could easily injure
yourself or somebody else. Please keep your safety and
well-being in mind at all times.
Important: Before you start construction
Even if you have built a large number of RC
modelsplease read right through these instructions and
check all the kit components against the parts list. We
have taken great trouble to keep construction as simple
as possible, without making any compromises in the area
of safety.
Note regarding the film covering
Minor creases or bubbles may develop in the film
covering due to major fluctuations in weather conditions
(temperature, humidity etc.); in rare cases you may even
find a slight warp in a component. These minor faults are
in the nature of film-covered built-up wooden structures,
and can easily be corrected using a heat gun, as
commonly used for modelling.
Creases: Blow warm air over the area and rub down
with a soft cloth.
Wing wrap: Hold the panel twisted gently in the
opposite direction to the wrap, and apply warm air to
remove the creases from the covering.
Caution! do not heat the film more than is absolutely
necessary. If the air or the iron is too hot, the film may melt
and holes may be formed.
This model is highly pre-fabricated and can be built
in a very short time. However, the work which you have to
carry out is important and must be done carefully. The
model will only be strong and fly well if you complete your
tasks competently - so please work slowly and
accurately.
When self-tapping screws have to be screwed
into wood, apply a little white glue to prevent them
shaking loose: just squirt white glue into the hole
and fit the screw
3
Instruction manual PIPER J-3 CUB Item code: BH58A
120 - 2 stroke
PARTS LISTING (NOT INCLUDED).
Wire cutters.
Hex Wrench.
Threadlocker
(screw cement).
Hand or
electric drill.
cm
12345678910
Straight edge ruler.
Some more tools.
Assorted drill bits.
Masking tape.
Paper towels.
Rubbing alcohol
90° square or builder's triangle.
Screw driver
Medium C/A glue
EPOXY A
EPOXY B
30 minute epoxy.
5 minute epoxy.
Modeling knife.
2 bender plier
TOOLS & SUPPLIES NEEDED.
BATTERY
Suit with your engine.
ESC
MOTOR
§This model is not a toy and pilots must be over the
age of 14.
§Be sure that no other flyers are using your radio
frequency.
§Do not smoke near fuel.
§Store fuel in a cool, dry place, away from children
and pets.
§Wear safety glasses.
§The glow plug clip must be securely attached to
the glow plug.
SAFETY PRECAUTION:
§Do not flip the propeller with your fingers.
§Keep loose clothing and wires away from the
propeller.
§Do not start the engine if people are near. Do not
stand in line with the side of the propeller.
§Make engine adjustments from behind the
propeller only. Do not reach around the spinning
propeller.
§Moisture causes damage to electronics. Avoid
water exposure to all equipment not specifically
designed and protected for this purpose.
4
Instruction manual PIPER J-3 CUB Item code: BH58A
8b
8a
8
4mm Washer
- - - - - - - 8
4mm Spring Washer
- - - - - - - 4
4x30mm Cap Screw
- - 8 - - - - -
- - 8 - - - - -
4mm Nut
15a
15b
500mm Pushrod wire
- - 1
100mm Push rod
- 2
M2
- - - 5
2mm Nut
- 5 - - - - - -
Horn
- - - - - 5
- - - - - - 5
Flaslink
Connector
- - 1
3x12mm Screw
- - - - 4
1000mm Push rod
- 3
- - - - 1
50mm Silicone Tube
2x10mm Screw
- - - - 8
7a
7b
6
: Fuselage.
: Wing panel ( )
: Horizontal stabilizer.
: Rudder.
: Aluminium wing dihedral brace.
: Decal sheet.
: Cockpit fuselage (7a: : Pilot).
: Fuel tank (8a: Clunk, 8b: Stopper (three line)).
: Plastic parts for cowling (9a, 9b).
: Cowling.
: Wheels.
: Main gear.
: Wood - motor mount.
: Plastic - engine mount (15a, 15b).
2a, 2b .
Canopy, 7b
: Tail gear set.
: Wing struts set.
16
10
11
1
2
3
4
5
6
787
12
13
14
9
15
1
2a
2a
3
4
5
10
9a
9b
- - 2 - -
3mm Colar
3x15mm Screw
- - - 2
- 2 - - - -
13
4mm Washer
- - - - - - - - 4
4 - - - - - - -
3mm Nut
- - - 4- - -
- - - 4- - -
- - - 2- - -
4mm Spring Washer
- - - - - - - 4
4x15mm Cap Screw
- - 4 - - - - -
3x12mm Cap Screw
- - 8 - - - - -
- - - 2
- - -2- - - -
- - - 4- - - - -
16
16b
16a
100mm Wheels.
- - 4 - - - - -
5.2mm Colar
4mm Washer
- - - - - - - 4
4mm Spring Washer
- - - - - - - 4
4x15mm Cap Screw
- - 4 - - - - -
11
12
- - - - - 4
10x15mm Aluminum
- - - - - 4
10x50mm Aluminum
Mount Nut
- - - - - 4
4mm Washer
- - - - - 4
4mm Spring Washer
- - - - - 8
4mm Washer
- - - - - 8
- - - - 1
- - 4
4x70mm Cap Screw
4x30mm Cap Screw
- - 4 - - -
6x45 mm
14
5
Instruction manual PIPER J-3 CUB Item code: BH58A
1. INSTALLING THE AILERONS
Temporary pin to
keep hinge centered.
C/A glue.
C/A glue.
* Apply drops of thin CA to the top and bottom of each
hinge. Do not use CA accelerator. After the CA has fully
hardened, test the hinges by pulling on the aileron.
* Test fit the ailerons to the wing with the hinges. If the
hinges don’t remain centered, stick a pin through the
middle of the hinge to hold it in position.
* Secure nylon hinges with instant glue, being careful
not to glue the wing and aileron together.
* Align the center line of main wing with aileron.
Make certain the hinges are adequately secured
with glue. if they come loose in flight accidents may
result.
WARNING
Bottom view
Servo tray
Bottom view
Aileron
Repeat the procedure to install the other wing.
2. INSTALLING THE AILERONS SERVOS
* Install the rubber grommets and brass eyelets on to
the aileron servos.
* Using a modeling knife, remove the covering from
over the pre-cut servo arm exit hole on the aileron servo
tray / hatch. This hole will allow the servo arm to pass
through when installing the aileron pushrods.
* Place the servo into the servo tray. Center the servo
within the tray and drill 1.5mm pilot holes through the
block of wood for each of the four mounting screws
provided with the servo.
* Using the thread as a guide and using masking tape,
tape the servo lead to the end of the thread: carefully
pull the thread out. When you have pulled the servo
lead out, remove the masking tape and the servo lead
from the thread.
* Place the servo into the servo tray/ hatch into the
servo box on the bottom of the wing and drill 1.5mm
pilot holes through the tray and servo box for each of the
four mounting screws. Secure the servo tray in place
using the mounting screws provided.
Drill a hole 1.5mm
and secure
o
90
Aileron
2x10mm
2x10mm
2x10mm Screw
- - - - 8
Repeat the procedure to install the other wing.
6
Instruction manual PIPER J-3 CUB Item code: BH58A
3. INSTALLING THE CONTROL HORNS, LINKAGES
* Attach the clevis to the outer hole in the servo arm.
* Using pliers, carefully make a 90 degree bend down
at the mark made. Cut off the excess wire, leaving
about 6mm beyond the blend.
After both linkages are completed. connect both of
the aileron servo loads using a Y-harness you have
purchased.
Insert the 90 degree bend down through the hole in the
control horn. Install one nylon snap keeper over the
wire to secure it to the control horn. Install the control
horn retaining screw and remove the masking tape
from the aileron.
A+B glueEpoxy
Control horn
Flaslink
Pushrod wire
Horn
Bend and cut.
Silicone Tube
100mm Push rod
- 2
M2
- - - 2
2mm Nut
- 2 - - - - - -
Horn
- - - - - - - - 2
- - - - - - 2
Flaslink
Silicone Tube
Servo arm
Cut
Silicone tube
5mm
Repeat the procedure to install the opposite gear.
4. INSTALLING THE ENGINE MOUNT
There are two options:
1. Electric motor
2. Engine mount.
7
Instruction manual PIPER J-3 CUB Item code: BH58A
OPTION 1: ELECTRIC MOTOR
- - - - - 4
10x15mm Aluminum
- - - - - 4
10x50mm Aluminum
Mount Nut
- - - - - 4
4mm Washer
- - - - - 4
4mm Spring Washer
- - - - - 8
4mm Washer
- - - - - 8
- - - - 1
- - 4
4x70mm Cap Screw
4x30mm Cap Screw
- - 4 - - -
6x45 mm
6x20mm
Cut
Secure
4x30mm
Secure
4x70mm
Battery
Secure
6x20mm
6x20mm
Battery
8
Instruction manual PIPER J-3 CUB Item code: BH58A
To carburetor
fuel inlet
(see front view of fuel tank). Insert and tighten the screw.
Be sure to equip
air vent pipe.
Tubing for
re-fuelling
Not included.
Tygon tubing (Gas). And
silicone tubing (Methanol).
5mm
5) Test fit the stopper assembly into the tank. It may be
necessary to remove some of the flashing around the
tank opening using a modeling knife. If flashing is
present, make sure none of it falls into the tank.
6) When satisfied with the alignment of the stopper
assembly tighten the 3mm x 20mm machine screw until
the rubber stopper expands and seals the tank
opening. Do not over tighten the assembly as this could
cause the tank to split.
7) Using a modeling knife, cut 3 lengths of fuel line
150mm long. Connect 2 lines to the 2 vent tubes and 1
line to the fuel pickup tube in the stopper.
8) Feed three lines through the fuel tank compartment
and through the pre-drilled hole in the firewall. Pull the
lines out from behind the engine, while guiding the fuel
tank into place. Push the fuel tank as far forward as
possible, the front of the tank should just about touch
the back of the firewall.
Blow through one of the lines to ensure the fuel lines
have not become kinked inside the fuel tank
compartment. Air should flow through easily.
9) To secure the fuel tank in place, apply a bead of
silicon sealer to the forward area of the tank, where it
exits the fuselage behind the engine mounting box and
to the rear of the tank at the forward bulkhead.
Do not secure the tank into place permanently until after
balancing the airplane. You may need to remove the
tank to mount the battery in the fuel tank compartment.
OPTION 2:
engine mount,
ENGINE INSTALLATION
Installing the fuel tank
1) The stopper has been pre-assembled at the factory.
2) Using a modeling knife, cut one length of silicon fuel
line (the length of silicon fuel line is calculated by how
the weighted clunk should rest about 8mm away from
the rear of the tank and move freely inside the tank).
Connect one end of the line to the weighted clunk and
the other end to the nylon pick up tube in the stopper.
3) Carefully bend the second nylon tube up at a 45
degree angle (using a cigarette lighter). This tube will
be the vent tube to the muffler.
4) Carefully bend the third nylon tube down at a 45
degree angle (using a cigarette lighter). This tube will
be vent tube to the fueling valve.
When the stopper assembly is installed in the tank, the
top of the vent tube should rest just below the top
surface of the tank. It should not touch the top of the
tank.
INSTALLING THE STOPPER ASSEMBLY
4mm Washer
- - - - - - - 8
4mm Spring Washer
- - - - - - - 8
4x30mm Cap Screw
- - 8 - - - - -
- - 8 - - - - -
4mm Nut
Engine mount
Install the engine mount using 4 screw 4mm x 30mm
Secure
4x30mm
9
Instruction manual PIPER J-3 CUB Item code: BH58A
INSTALLING THE THROTTLE PUSHROD
* Locate the long piece of wire used for the throttle
pushrod. One end of the wire has been pre-bend in to
a "Z" bend at the factory. This "Z" bend should be
inserted into the throttle arm of the engine when the
engine is fitted onto the engine mount. Fit the engine
to the engine mount using the screws provided.
500mm Pushrod wire
- - - 1
Connector
- - 1
Fuel tank
Fuel tank
10
Instruction manual PIPER J-3 CUB Item code: BH58A
5. INSTALLING THE FUSELAGE SERVOS
1) Install the rubber grommets and brass collets into the elevator, rudder and throttle
servos. Test fit the servos into the servo tray. Trim the tray if necessary to fit your servos.
2) Mount the servo to the tray using the mounting screws provided with your radio system.
Elevator servo
Rudder servo
Throttle servo
Secure
4x30mm
145mm
11
Instruction manual PIPER J-3 CUB Item code: BH58A
1) Slide the fiberglass cowl over the engine and line up the back edge of the cowl with the marks you made on the
fuselage.
2) While keeping the back edge of the cowl flush with the marks, align the front of the cowl with the crankshaft of the
engine. The front of the cowl should be positioned so the crankshaft is in nearly the middle of the cowl opening. Hold
the cowl firmly in place using pieces of masking tape.
3) Slide the cowl back over the engine and secure it in place using four wood screws. See picture below.
4) Install the muffler and muffler extension onto the engine and make the cutout in the cowl for muffler clearance.
Connect the fuel and pressure lines to the carburetor, muffler and fuel filler valve.
Drill four 2.5mm pilot holes through both the cowl and the side edges of the firewall. Using a 3mm drill bit, enlarge the
four holes in the cowling.
6. COWLING
3) Install one adjustable metal connector through the third hole out from the center of one servo arm, enlarge the hole
in the servo arm using a 2mm drill bit to accommodate the servo connector. Remove the excess material from the arm.
After installing the adjustable metal connector apply a small drop of thin C/A to the bottom nut. This will
prevent the connector from loosening during flight.
C/A glue.
Cowl area cutout
for engine head.
Cowl area cutout
for muffler
Cowl area cutout
for proper airflow
to carburetor.
Connector
Servo arm
Throttle servo
Throttle pushrod
Secure
Cut
12
Instruction manual PIPER J-3 CUB Item code: BH58A
Drill two holes 2.5mm
and secure 3x12mm.
3x12mm Screw
- - - - 4
Drill two holes 2.5mm
and secure 3x12mm.
13
Instruction manual PIPER J-3 CUB Item code: BH58A
7. INSTALLING MAIN GEAR
C/A glue.
Secure
4x15mm
Fuselage sideBottom
Secure
5.2mm
Colar
5.2mm
Colar
- - 4 - - - - -
5.2mm Colar
4mm Washer
- - - - - - - 4
4mm Spring Washer
- - - - - - - 4
4x15mm Cap Screw
- - 4 - - - - -
100mm Wheels.
14
Instruction manual PIPER J-3 CUB Item code: BH58A
8. INSTALLING HORIZONTAL STABILIZER
2) Draw a center line onto the horizontal stabilizer.
Then put the horizontal into the fuselage.
3) Check the fit of the horizontal stabilizer in its slot.
Make sure the horizontal stabilizer is square and
centered to the fuselage by taking measurements, but
don't glue anything yet.
1) Using a modeling knife, carefully remove the film
covering from the tail slots at the rear of the fuselage.
Make sure that you do not remove any wood from the
slots as this will affect the alignment of the tail.
Center line
Bottom side.
Trim the covering
from the tail slots.
Check to mark sure the wing and stabilizer are
paralell. If they are not, lightly sand the opening in
the fuselage for the stabilizer until the stabilizer is
paralell to the wing, but don't glue anything yet.
5) With the horizontal stabilizer correctly aligned.
Apply a thin CA layer to the top and bottom of the
stabilizer in the fuselage.
6) Hinges for Elevator are glued the same way as the
aileron before (see page 4).
C/A glue.
Top side.
1000mm Push rod
- 2
M2
- - - 2
2mm Nut
- 2 - - - - - -
Horn
- - - - - - - - 2
- - - - - - 2
Flaslink
Silicone Tube
Horn
Cut
Silicone tube
5mm
Bottom side.
15
Instruction manual PIPER J-3 CUB Item code: BH58A
1) Using pliers, carefully make a 90 degree bend down
at the mark made. Cut off the excess wire, leaving
about 6mm beyond the blend.
2) Insert the 90 degree bend down through the hole in
the servo arm. Install one nylon snap keeper over the
wire to secure it to the arm. Install the servo arm
retaining screw.
ELEVATOR CONTROL
AND PUSHROD INSTALLATION
HORN
Control horn and linkages for Elevator are installed the
same way as the ailerons before (see page 5).
Bottom side.
A+B Epoxy glue
Drill a hole
1.5 mm
Silicone Tube
Elevator pushrod
Horn
Flaslink
Pushrod wire
servo arm
Flaslink
Elevator pushrod
9. RUDDER INSTALLATION
Hinges for Rudder are glued the same way as the
aileron before (see page 4).
1000mm Push rod
- 1
M2
- - - 1
2mm Nut
- 1 - - - - - -
Horn
- - - - - - - - 1
- - - - - - 1
Flaslink
Silicone Tube
Horn
Cut
Silicone tube
5mm
16
Instruction manual PIPER J-3 CUB Item code: BH58A
Control horn and linkages for Rudder are installed the
same way as the Elevator before (see page 10).
Flaslink
Pushrod wire
servo arm
Flaslink
Rudder pushrod
Rudder
Bottom side.
A+B Epoxy glue
Rudder pushrod
Silicone Tube
6mm
90
o
Mark
Control horn
Silicone Tube
Rudder
M2
Pushrod
17
Instruction manual PIPER J-3 CUB Item code: BH58A
10. INSTALLING THE TAIL WHEEL
- - 2 - -
3mm Colar
3x15mm Screw
- - - 2
- 2 - - - -
1. Using the knife cut away the wood from the
bottom of the rudder and slide the two nylon clasps
into the slot. Using the nylon clasps
as shown.
A+B Epoxy glue
2. Set the tail wheel assembly in place on the
plywood plate. Mark the locations of the two mounting
screws.
3. Remove the tail wheel bracket and drill 2.5mm pilot
holes at the locations marked.
4. Secure the tail wheel bracket in place using two 3mm x 15mm screw.
5. Align the tail wheel wire so that the wire is parallel with the bottom of the rudder.
Secure
3x15mm
Mark
Fuselage sideBottom
A+B Epoxy glue
18
Instruction manual PIPER J-3 CUB Item code: BH58A
11. INSTALLING THE SWITCH, RECEIVER AND BATTERY.
1) Cut out the switch hole using a modeling knife. Use a
2mm drill bit and drill out the two mounting holes
through the fuselage side.
2) Secure the switch in place using the two machine
screws provided with the radio system.
3) Plug the servo leads and the switch lead into the
receiver. You may want to plug an aileron extension into
the receiver to make plugging in the aileron servo lead
easier when you are installing the wing. Plug the battery
pack lead into the switch.
4) Wrap the receiver and battery pack in the protective
foam to protect them from vibration. Use a rubber band
or masking tape to hold the foam in place.
5) Position the battery pack and receiver behind the
fuel tank. Use two tie wraps to hold the battery and
receiver securely in place as pictures below.
Do not permanently secure the receiver and battery
until after balancing the model.
6) Using a 2mm drill bit, drill a hole through the side of
the fuselage, near the receiver, for the antenna to exit.
Position the canopy so the rear frame on the canopy
is aligned with the rear edge of the cockpit opening. Use
canopy glue to secure the canopy to the canopy
hatch. Use low-tack tape to hold the canopy in
position until the glue fully cures. Wrap the tape
completely around the canopy hatch.
12. INSTALLING COCKPIT FUSELAGE
Battery
Receiver
Switch
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Instruction manual PIPER J-3 CUB Item code: BH58A
A+B Epoxy glue.
Adhesive tape.
Open/Close
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Instruction manual PIPER J-3 CUB Item code: BH58A
A+B glueEpoxy
A+B glueEpoxy
Secure
WING STRUTS SET
13. WING ATTACHMENT, WING STRUT
4mm Washer
- - - - - - - 4
4mm Spring Washer
- - - - - - - 4
- - 4 - - - - -
4x15mm Cap Screw
- - 4 - - - - -
3x12mm Cap Screw
- - 8 - - - - -
3mm Nut
- - - - - - - 4
- - - - - - - 4
- - - - - - - 2
- - - 2
- - - - - - - 2
- - - - - - - 4
Cut
Cut
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Instruction manual PIPER J-3 CUB Item code: BH58A
WING ATTACHMENT
640mm
Aluminium tube.
19mm
Locate the aluminium wing dihedral brace.
*** Test fit the aluminium tube dihedral brace
into each wing haft. The brace should slide in
easily. If not, use 220 grit sand around the
edges and ends of the brace until it fits properly.
Attach the aluminium tube into the fuselage.
Insert the wing panel as pictures below.
Fuselage sideBottom
Secure
4x15mm
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Instruction manual PIPER J-3 CUB Item code: BH58A
14. INSTALLING THE PROPELLER
Secure
Screw the wing panel in position.
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Instruction manual PIPER J-3 CUB Item code: BH58A
1) We highly recommend setting up a plane using the
control throws listed.
2) The control throws should be measured at the
widest point of each control surface.
3) Check to be sure the control surfaces move in the
correct directions.
Ailerons : 15mm up 15mm down
Elevator : 15mm up 15mm down
Rudder : 20mm right 20mm left
CONTROL THROWS
15mm
15mm
15mm
15mm
Aileron control
Elevator control
20mm
20mm
Rudder control
PRE-FLIGHT CHECK
1) Completely charge your transmitter and
receiver batteries before your first day of flying.
2) Check every bolt and every glue joint in your
plane to ensure that everything is tight and well
bonded.
3) Double check the balance of the airplane.
4) Check the control surface.
5) Check the receiver antenna. It should be fully
extended and not coiled up inside the fuselage.
Check the receiver antenna. It should be fully
extended and not coiled up inside the fuselage.
6) Properly balance the propeller.
We wish you many safe and enjoyable
flights with your PIPER J-3 CUB.
BALANCING
1) It is critical that your airplane be balanced correctly.
Improper balance will cause your plane to lose control
and crash.
THE CENTER OF GRAVITY IS LOCATED 95MM
BACK FROM THE LEADING EDGE OF THE WING.
2) Mount the wing to the fuselage. Using a couple of
pieces of masking tape, place them on the top side of
the wing 95mm back from the leading edge, at the
fuselage sides.
3) Turn the airplane upside down. Place your fingers
on the masking tape and carefully lift the plane.
Accurately mark the balance point on the top of the wing
on both sides of the fuselage. The balance point is
located 95mm back from the leading edge. This is the
balance point at which your model should balance for
your first flights. Later, you may wish to experiment by
shifting the balance up to 10mm forward or back to
change the flying characteristics. Moving the balance
forward may improve the smoothness and arrow- like
tracking, but it may then require more speed for take off
and make it more difficult to slow down for landing.
Moving the balance aft makes the model more agile
with a lighter and snappier "feel". In any case, please
start at the location we recommend.
With the wing attached to the fuselage, all parts of the
model installed ( ready to fly), and empty fuel tanks,
hold the model at the marked balance point with the
stabilizer level.
Lift the model. If the tail drops when you lift, the model is
"tail heavy" and you must add weigh* to the nose. If the
nose drops, it is "nose heavy" and you must add weight*
to the tail to balance.
*If possible, first attempt to balance the model by
changing the position of the receiver battery and
receiver. If you are unable to obtain good balance by
doing so, then it will be necessary to add weight to the
nose or tail to achieve the proper balance point.
CG
95mm
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Instruction manual PIPER J-3 CUB Item code: BH58A
I/C FLINGT WARNINGS
NEVER fly near power lines,aerials or
other dangerous areas including airports,
motorways etc.
ALWAYS adjust the engine from behind
the propeller, and do not allow any part of
your body to be in line with the propeller.
Always operate in open areas, away from
factories, hospitals, schools, buildings
and houses etc. NEVER fly your aircraft
close to people or built up areas.
DO N OT d is pose o f empt y f uel
containers on a fire, this can lead to an
explosion.
NEVER fly in wet conditions or on windy
or stormy days.
NEVER use damaged or deformed
propellers or spinners.
THE PROPELLER IS DANGEROUS.
Keep fingers, clothing (ties, shirt sleeves,
scarves) or any other loose objects that
could be caught or drawn in, away from
the propeller. Take care at ALL times.
Keep all onlookers (especially small
children and animals) well back from the
area of operation. This is a flying aircraft,
which will cause serious injury in case of
impact with a person or animal.
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