THE WORLD MODELS PIPER J-3 CUB 26s User manual

PIPER J - 3 CUB 26s
INSTRUCTION MANUAL
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Specifications
Warning! This model is not a toy.
It is designed for maximum performance. Please seek advice if one is not familiar with this kind
of electric powered precision model. Operating this model without prior preparation may cause
injuries. Remember, safety is the most important thing. Always keep this instruction manual at
hand for quick reference.
*Specifications are subject to change without notice.*
Require : 4 -channel w servoss radio / 4 standard
0.25-0.32 cu. in. displacement 2-stroke
0.30 cu. in. displacement 4-stroke
Wing Span
Wing Area
Flying Weight
Fuselage Length
51.0 in / 1300 mm
419 sq in / 27.0 sq dm
3.3 lbs /1500 g
33.0 in / 840 mm
ALMOST-READY-TO-FLY (ARF) SERIES
MADE IN CHINA
FACTORY PRE-FABRICATED
A002SPO24781009

Apply thread locker
Apply epoxy glue.
Pierce the shaded portion
covering film.
Appl
(C.A.glue, super glue.)
y instant glue
Ensur
movement while assembling.
e smooth non-binding
Do not overlook this symbol !
P. 3 -10
Check all parts. If you find any defective or missing parts contact your local dealer. Please DRY FIT
and check for defects for all parts that will require CA or Epoxy for final assembly. Any parts you
find to be defective after the gluing process may be difficult to remove for warranty replacement. The
manufacturer will replace any defective parts, but will not extend to the parts that are good before
gluing to defective parts during assembly. Warranty will not cover any parts modified by customer.
INDEX
BEFORE YOU BEGIN
PARTS LIST
ASSEMBLY
SAFETY PRECAUTIONS
P. 1
P. 2
P.10
BEFORE YOU BEGIN
Read through the manual before you begin, so you will have an overall idea of what to do.
Symbols used throughout this instruction manual comprise of the following : -
1
2
3
Assembl
sides the same way.
e left and right
Pee
covering film.
l off shaded portion
Drill holes with the specified
diameter (here:3mm).
Pay close attention here!
Cut off shaded portion.
Must be purchased separately !
Warning!
3mm
P.1
PIPER J - 3 CUB 26s
A002SPO24781009

P.2
Parts List
COVERING:--
LIGHTEX SGX 331 CUB YELLOW
LIGHTEX SGX 201 BLACK
1. MAIN WING -- 1 pair
2. WING JOINER 6x20x87mm -- 1 pc.
3. FUEL TUBE Ø6x5mm -- 4 pcs
CLEVIS -- 2 pcs
STRAPER -- 2 pcs
RING Ø2.3mm -- 2 pcs
PUSHROD Ø1.8x100mm w/ Threads (For Aileron) -- 2 pcs
BALSA 5x8x20mm (For Aileron Servo) -- 2 pcs
4. MAIN WING STRUTS -- 1 pair
SCREW PA2.6x12mm -- 4 pcs
5. FUSELAGE -- 1 pc.
VERTICAL FIN & RUDDER -- 1 set
STABILIZER & ELEVATOR -- 1 set
6. SCREW PA2.6x12mm -- 2 pcs
TAIL LANDING GEAR -- 1 set
TAIL WHEEL Ø23mm -- 1 pc.
COLLAR Ø2.1mm w/ set screw -- 1 set
SCREW PM2x12mm -- 1 pc.
M2 NUT -- 1 pc.
ALUMINUM PLATE 0.5mm -- 1 pc.
7. ENGINE MOUNT PL5111020 -- 1 set
SOCKET HEAD SCREW M3x20mm -- 4 pcs
WASHER d3xD7mm -- 4 pcs
8. SOCKET HEAD SCREW M3x25mm -- 4 pcs
WASHER d3xD7mm -- 8 pcs
M3 NUT -- 8 pcs
SPINNER Ø45mm -- 1 pc.
THROTTLE PUSH WIRE Ø1.2x260mm -- 1 pc.
PLASTIC TUBE d2xD3x140mm -- 1 pc.
9. FUEL TANK 200cc -- 1 set
CABLE TIE 1.5x4x400mm -- 1 pc.
DOUBLE-SIDED TAPE 40x80mm – 1 pc.
10. SCREW HM3x16mm -- 2 pcs
WASHER d3xD7mm -- 2 pcs
M3 NUT -- 2 pcs
ALUMINUM PLATE 1.5mm -- 2 pcs
11. MAIN LANDING GEAR -- 1 set
SCREW PA3x10mm -- 8 pcs
MOUNTING PLATE 12x20mm -- 4 pcs
12. MAIN WHEEL Ø50mm -- 2 sets
COLLAR Ø3.1mm w/ set screw -- 4 sets
BALSA 2x80x90mm (Main Landing Gear Cover) -- 1 pair
PLYWOOD 9x9x12mm -- 4 pcs
13. SIDE WINDOWS -- 1 pair
WIND SHIELD -- 1 pc.
SCREW PWA2.3x8mm -- 4 pcs
WIND SHIELD -- 1 pc.
SILICON GROMMET d1.5x6.5mm -- 4 pcs
14. COWLING -- 1 pc.
TRANSPARENT 3D TEMPLATE -- 1 pc.
SCREW PWA2.6x12mm -- 4 pcs
SILICON GROMMET d1.5x6.5mm -- 4 pcs
15. LINKAGE CONNECTOR Ø2.1mm -- 1 set
16. PUSHROD Ø1.8x65mm (For Elevator) -- 1 pc.
PUSHROD CONNECTOR 4x9x20mm -- 1 set
SPONGE 10x80x200mm -- 2 pcs
STRAPER -- 2 pcs
FUEL TUBE Ø6x5mm -- 2 pcs
17. SCREW PB2x10mm -- 6 pcs
FUEL TUBE Ø6x5mm -- 2 pcs
CLEVIS -- 2 pcs
TRI-HORN M3X14mm -- 2 sets
PUSHROD Ø1.8x418mm w/ Threads (For Elevator) -- 2 pcs
18. SCREW PB2x10mm -- 3 pcs
FUEL TUBE Ø6x5mm -- 1 pc.
CLEVIS -- 1 pc.
TRI-HORN M3x14mm (S) -- 1 set
PUSHROD Ø1.8x485mm w/ Threads (For Rudder) -- 1 pc.
19. SCREW HM3x30mm -- 2 pcs
WASHER d3xD12mm -- 2 pcs
SCREW HM3x10mm -- 2 pcs
M3 NYLON INSERT LOCK NUT -- 2 pcs
PLASTIC PLATE 1x24x84mm (Wing Protection) -- 1 pc.
20. DECALS A002SDEC -- 1 set
A002SPO24781009

P.3
Main Wing
1
Straper
Fuel Tube
Ø6x5mm
Pushrod
Ø1.8x100mm
Balsa
5x8x20mm
Clevis
Ring
1mm
Main Wing
2
Wing joiner
6x20x87mm
Please dry fit wing joiner into left and right wing to make sure they fit with the proper
dihedral angle, mark the wing joiner if necessary. Apply epoxy glue to both sides of
all surfaces in contact. Use a stick to apply the glue to inner side of wing joiner
sleeve, and apply the glue to wing joiner before putting them together. Wing joiner
not glued properly will lead to wing failure and plane crash.
Aileron Servo
3
Apply instant type CA glue to both sides of each hinge.
A002SPO24781009

P.4
Wing Struts
4
Vertical Fin / Horizontal Stabilizer
5
PA2.6x12mm Screw
4
1mm
PA2.6x12mm
362mm
90mm
71mm
Bottom View
(Stabilizer)
(Main Wing)
B B'
B=B'
90
Temporary install the main wing, adjust
leveling of the stabilizer to make it as
parallel to the main wing as possible.
PA2.6x12mm Screw
3mm Set Screw
2mm Collar
PM2x12mm Screw
2
1
1
1
M2 Nut
1
Tail Landing Gear
6
PA2.6x12mm
PM2x12mm
3mm Set Screw
Apply instant type CA glue to both sides of each hinge.
A002SPO24781009

P.5
Engine
8
4
d3xD7mm Washer
d3xD7mm Washer
Engine Mount
7
M3x20mm
Socket Head Screw
4
Lead the 1.2mm throttle rod through the
plastic tube and attach the throttle rod
to the throttle lever on the engine.
4
d3xD7mm Washer
8
M3x25mm
8
M3 Nut
M3x25mm
Fuel Tank
200cc
Fuel Tank
UP
Bottom View
Fuel Tank
9
Installed Engine Position
90mm
3.54 in
Fire
Wall
d3xD7mm
Washer
d3xD7mm
Washer M3 Nut
Ø45mm
M3x20mm
Socket Head Screw
Engine Mount PL5111020
A002SPO24781009
Socket Head Screw
Completed
1.5x4x400mm
40x80mm
Cable Tie
Double-sided Tape

P.6
Landing Gear
10
2
d3xD7mm Washer
2
HM3x16mm Screw
2
M3 Nut
PA3x10mm Screw
8
3.5mm
HM3x16mm
d3xD7mm Washer
M3 Nut
PA3x10mm
12
3mm Set Screw
3.1mm Collar
4
4
11 Landing Gear
Landing Gear
Aluminum Plate 1.5mm
Mounting Plate 12x20mm
Balsa 2x80x90mm
Plywood 9x9x12mm
Bottom View
Bottom View
A002SPO24781009

P.7
4
d1.5xD6.5mm
Silicon Grommet
4
PWA2.6x12mm Screw
Servo Set
15
Please refer to the attached sheet for linkage connector installation.
3mm
Throttle Servo.
2mm
2mm
Washer
M2 Nut
2mm
Washer
3x3mm Set Screw
1
1
Linkage Connector
1
M2 Nut
2mm Washer
2
Cowling
14
PWA2.6x12mm
d1.5xD6.5mm
Silicon Grommet
Canopy
13
4
d1.5xD6.5mm
Silicon Grommet
4
PWA2.3x8mm Screw
PWA2.3x8mm
d1.5xD6.5mm
Silicon Grommet
Please refer to the attached sheet for
usage of the transparent 3D template.
First insert the grommet to
the cowling then apply screw.
A002SPO24781009
1.5mm
PWA2.6x12mm
Silicon Grommet
d1.5xD6.5mm
Cowling
Fuselage

P.8
Radio Equipment
16
Install and arrange the servos as shown in the
diagram.
Elevator Servo
Pushrod
Connector
J2(Pushrod Ø1.8x430)
J1(Pushrod Ø1.8x65) J1
J2
Fuel Tank
Receiver
Battery
Straper
Rudder
Ø1.8x485mm
Pushrod
Fuel Tube
Ø6x5mm
Elevator Pushrod
Ø1.8x430mm
Elevator Servo
Rudder Servo
Throttle Pushrod
Ø1.2x260mm
Throttle Servo
KM2x8mm
M2 Nut
Elevator Pushrod
Ø1.8x65mm
6
PB2x10mm Screw
Elevator Pushrod
17
Ø1mm pilot holes for The World Models tri-horn are pre-drilled.
Please look for pin-hole marks at under side of control surfaces.
Bottom View
A002SPO24781009
Elevator Pushrod
Ø1.8x 418mm
Fuel Tube
Ø6x5mm
PB 2 x 10mm
Tri-horn
M3 x 14mm
Clevis

P.9
Wing Setting
20
Main Wing/ Wing Struts
19
2
d3xD12mm Washer
2
HM3x30mm Screw
2
M3 Nylon Insert Lock Nut
2
HM3x10mm Screw
HM3x30mm
d3xD12mm Washer
HM3x10mm
M3 Nylon
Insert Lock Nut
A = A'
B = B'
C = C'
D = D'
C C'
D D'
B B'
A A'
In order to obtain the wing and fuselage configuration as in the
diagrams, insert reinforcement plates between the wing and fuselage
if necessary.
Securely attach the
main wing
Plastic Plate1x24x84mm
3
PB2x10mm Screw
18
Bottom View
PB2x10mm
Rudder Pushrod
Fuel Tube
Ø6x5mm
Clevis Tri-Horn
M3x14mm
Ø1mm pilot holes for The
World Models tri-horn are
pre-drilled. Please look
for pin-hole marks at
side of control surfaces.
A002SPO24781009

P.10
Important Safety Precautions
# First time flyer should never fly by himself / herself. Assistance from experienced
flyer is absolutely necessary.
# Pre-flight adjustment must be done before flying, it is very dangerous to fly a badly
pre-adjusted aircraft.
# i s s p ec i a l ly d e s ig n e d to b e p ow e r e d by 2C 0.25-0.32 or 4C 0.30
engine, using a more powerful engine does not mean better performance. In fact,
over powered engine may cause severe damage and injuries.
# Make sure the air field is spacious, never fly the plane too close to people and never
get too close to a running propeller.
# If you find wrinkles on the covering as a result of weather changes, you can use hot
iron to remove the wrinkles. Please begin with lower temperature setting and
gradually raise the temperature until the wrinkles are gone. Too hot an iron may
damage the covering. Don't use hot iron near the seams or edges, hot iron will
melt the glue and shrink the covering at the same time, causing the seams to pull away.
# Check and re-tighten up all factory assembled screws, use thread locker if necessary.
Warning!
C.G.
55mm
2.16in
The ideal C.G. position is 55mm (2.16 in) behind the leading edge measured
at where the wing meets the fuselage. In order to obtain the C.G. specified,
add weight to the fuselage or move the battery position. Check the C.G. before
flying.
If you are converting this model to electric, please move the C.G. forward 10% of
current C.G. distance from leading edge to compensate for weight of fuel.
Control Throws
21
Rudder
Elevator
Aileron
14mm
14mm
28mm
28mm
5mm
5mm
Adjust the control throws as shown in
the diagram. These throws are good for
general flying. You can adjust according
to your personal preference.
22
A002SPO24781009
http://www.theworldmodels.com/para/instruction/instructionManuals.php

A002SPO24781009
LINKAGE CONNECTOR
HW7111050 & HW7111060
Drill 2mm hole at servo horn.
Insert linkage connector
into servo horn.
Make sure shoulder of
screw is cleared from
servo horn.
Add washer to reduce
play if necessary.
Shoulder
Tighten up the round nut
against the shoulder. Apply
CA or permanent thread
locker.
After fastening the round nut, make sure that
the linkage connector can rotate freely.

Product Registration Form (US Customers)
We would like to share with you any relevant information regarding your model, including
product news and free upgrade parts when applicable. Please fill in the following and send to
1.Name:
2.Address:
3.Phone #: e-mail:
4.Model:
Wing QC# Fuselage QC#
(QC numbers are stamped on wing and fuselage)
5.Date of Purchase:
6.Store Name:
Please call AirBorne Models at 925 371 0922 for any assistance in filling this form.
Thank you very much for purchasing our product.
Air orne Models, 4749-K,Bennett Drive, Livermore, CA 94551 USAB .
A002SPO24781009

12
34
Usage of the transparent 3D template
This transparent 3D template
is used for position guidance
of the actual cutting of the
pre-painted cowling.
Simply cut the transparent 3D template to fit your engine and
exhaust pipe, then slide onto the actual cowling and use as
template to mark the openings required for final cutting.
A002SPO24781009

Optional Parts
180mm Extension
KW0011800 180mm 1 set
Code No. Size Package
Fuel Filler
PL8110030 15 x 22 x 49mm 1 x 1 pc
Code No. Size Package
Charge Receptacles
KP0041300
Code No. Size Package
Field Stand
MS9111450 600 x 240 x 350mm 1 pc
Code No. Size Package
180mm Y-Cord
KW0021800 180mm 1 pc
Code No. Size Package
Clevis Wrench
PL8210010 1 set
Code No. Size Package
Small Clevis Large Clevis
Special tool for clevis installation.
Suitable for standard and small
(EP) clevis.
Standard Servo
Code No SV4031
0.14 sec / 60° @6.0V
Torque : 3.2kg.cm / 44.8 oz - in @4.8V
4.1kg.cm / 57.4 oz - in @6.0V
Size : 40.6 x 20 x 37mm /
1.60 x 0.79 x 1.46 in
Weight : 39.4 g / 1.39 oz
Speed : 0.17 sec / 60° @4.8V

A002SPO24781009