THE WORLD MODELS 1/6 PIPER PA-25 PAWNEE User manual

A335PO31111509
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 engine 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.*
INSTRUCTION MANUAL
Wing Span
Wing Area
Flying Weight
Fuselage Length
72 in / 1830 mm
736 sq in / 47.5 sq dm
6.6 Ib / 3000 g
48 in / 1220 mm
Specifications
FACTORY PRE-FABRICATED
ALMOST-READY-TO-FLY(ARF)SERIES
MADE IN CHINA
The World Models
Manufacturing Co., Ltd.
www.theworldmodels.com
(A335)
"Glow Power" requires: 6-channel radio w/4 mini servos, 3 standard servos,
2-stroke 0.40-0.46 engine,
"Electric Power" requires: 6-channel radio w/6 mini servos,
Outrunner Motor KM37490750 w/Radial Mount
Adaptor HW2340300, 40A Brushless ESC, 4 cells
14.8V 3200mAh Lipo battery and charger
1/6 PIPER PA-25 PAWNEE

A335PO31111509
INDEX
BEFORE YOU BEGIN
BEFORE YOU BEGIN
PARTS LIST
ASSEMBLY
SAFETY PRECAUTIONS
P.1
P.2
P.3-P.14
P.14
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 CAor 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.
Symbols used throughout this instruction manual comprise of the following :-
Read through the manual before you begin, so you will have an overall idea of what to do.
1
2
3
P.1
Cut off shaded portion.
Ensure smooth non-binding
movement while assembling.
Apply instant glue
(C.A.glue, super glue.)
Assemble left and right
sides the same way.
Peel off shaded portion
covering film.
Pay close attention here!
Apply epoxy glue.
Must be purchased separately !
Drill holes with the specified
diameter (here: 3mm). Pierce the shaded portion
covering film.
3mm
Do not overlook this symbol !
Warning!
Apply thread locker
1/6 PIPER PA-25 PAWNEE

A335PO31111509
P.2
Parts List
COVERING:--
TOUGHLON STL 331 CUB YELLOW
TOUGHLON STL 100 WHITE
TOUGHLON STL 250 BLUE
1. DECALS: A335 DEC -- set
MAIN WING -- 1 pair
FUSELAGE -- 1 pc.
VERTICAL FIN & RUDDER -- 1 set
2. STABILIZER & ELEVATOR -- 1 set
4. PUSHROD Ø1.8x785mm w/ Threads (For Rudder) -- 1 pc.
CLEVIS PL4112103 -- 1 pc.
SCREW PB2x12mm -- 3 pcs
TRI-HORN PL4111221 -- 1 set
FUEL TUBE D6x5mm -- 1 pc.
5. PUSHROD Ø1.8x703mm w/ Threads (For Elevator) -- 2 pcs
SCREW PB2x12mm -- 6 pcs
CLEVIS PL4112103 -- 2 pcs
TRI-HORN PL4111221 -- 2 sets
FUEL TUBE D6x5mm -- 2 pcs
6. TAIL LANDING GEAR PL7100001 -- 1 pc.
TAIL WHEEL Ø25mm -- 1 pc.
COLLAR Ø2.1mm w/ Set Screw -- 1 set
SCREW PA3x12mm -- 2 pcs
SCREW PM2x12mm -- 1 pc.
PLATE 0.3mm -- 1pc.
M2 NUT -- 1pc.
7. MAIN LANDING GEAR -- 1 pc.
COLLAR Ø3.6mm w/ Set Screw -- 4 sets
MAIN WHEEL Ø80mm -- 2 pcs
SCREW PA3x12mm -- 12 pcs
MOUNTING PLATE PL4114020 -- 6 pcs
8.
COWLING --1 pc.
TRANSPARENT 3D TEMPLATE -- 1 pc.
SCREW PWA2.6x12mm -- 4 pcs
SILICON GROMMETS PL1265035 d1.5xD6.5mm -- 4 pcs
SPINNER Ø57mm PL2111057 -- 1 set
SCREW PA3x12mm -- 2 pcs
PLYWOOD 3x30x53mm(For mini servo) -- 1 pc.
PLYWOOD 3x10x32mm(For standard servo) -- 2 pcs
9. SCREW PWA2x8mm -- 16 pcs
SERVO MOUNTING PANEL PL5310030(For Flap) -- 2 pcs
SERVO MOUNTING PANEL PL5310030(For Aileron) -- 1 pair
10.
PUSHROD Ø1.8x105mm w/ Threads ( For Flap ) -- 2 pcs
PUSHROD Ø1.8x115mm w/ Threads (For Aileron) -- 2 pcs
TRI-HORN PL4111221 -- 4 sets
SCREW PB2x20mm -- 8 pcs
SCREW PB2x16mm -- 4 pcs
CLEVIS PL4112103 -- 4 pcs
FUEL TUBE D6x5mm -- 8 pcs
STRAPER PL4112102 -- 4 pcs
11. WING TUBE Ø10x531mm(A) -- 1 pc.
WING TUBE Ø8x531mm(B) -- 1 pc.
SCREW PA3x22mm -- 4 pcs
WASHER d3.2xD12mm -- 4 pcs
12. WING STRUTS(A) -- 1 pair
WING STRUTS Cover(A) -- 1 pair
WING STRUTS(B) -- 1 pair
WING STRUTS Cover(B) -- 1 pair
SOCKET HEAD SCREW M3x15mm -- 4 pcs
SOCKET HEAD SCREW M3x12mm -- 6 pcs
WASHER d3xD7mm -- 16 pcs
M3 NYLON INSERT LOCK NUT -- 2 pcs
M3 NUT -- 4 pcs
PLATE 2mm -- 2 pcs
13. FUEL TUBE D6x5mm -- 2 pcs
STRAPER PL4112102 -- 2 pcs
SPONGE -- 60x70x130mm -- 1 pc.
PUSHROD CONNECTOR PL4410010 -- 1 set
PUSHROD Ø1.8x73mm (For Elevator ) -- 1 pc.
BATTERY MAT 2x50x150mm -- 2 pcs
PLYWOOD 3x30x53mm(For mini servo) -- 2 pcs
14. BATTERY COVER -- 1 pc.
15. PILOT PC001085A -- 1 sets
CANOPY -- 1 pc.
SCREW PWA2.3x8mm -- 4 pcs
SILICON GROMMETS PL1265035 d1.5xD6.5mm -- 4 pcs

A335PO31111509
P.3
Decals
1
Cut out decal sheet, peel off backing sheet and
apply on fuselage, rudder and wings. Decal
Left View
Left View
Right View
Right View
Bottom View
Main wings
Fuselage
Rudder

A335PO31111509
Stabilizer & Elevator
2
Vertical Fin & Rudder
3
Rudder Pushrod
4
P.4
PB2x12mm Screw
3
B B'
B=B'
PB2x12mm
Fuel Tube
D6x5mm
Pushrod
Ø1.8x785mm
Clevis
Tri-horn
M3x14mm
Ø1mm pilot holes for World Models horn are pre-drilled. Please look for pin-hole marks at
side of control surfaces.
1 2
(Stabilizer)
(Main Wing)
B B'
B=B'
Temporary install the main wing,
adjust leveling of the stabilizer
to make it as parallel to the main
wing as possible
Apply instant type CA glue to both sides of each hinge.
Apply instant type CA glue to both sides of each hinge.

A335PO31111509
PB2x12mm Screw
6
Elevator Pushrod
5
Tail Landing Gear
6
Main Landing Gear
7
P.5
PB2x12mm
Clevis
Tri-horn
M3x14mm
Pushrod
Ø1.8x703mm
Fuel Tube
D6x5mm
PA3x12mm Screw
12
M3x3mm
Set Screw
3.6mm Collar
3.6mm Collar
M3x3mm
Set Screw
Wheel Ø80mm
Landing Gear
Ø1mm pilot holes for World Models horn are pre-drilled. Please look for pin-hole marks at
under side of control surfaces.
PM2x12mm Aluminium Plate
M2 Nut
2.1mm Collar
PA3x12mm
3mm set screw
1.5mm
PA3x12mm Screw
2
M2 Nut
1
PM2x12mm Screw
1
2.1mm Collar
1
PA3x12mm

A335PO31111509
Brushless ESC
EZ Connector
PropellerAdaptor
HW2340300
M3x12mm
d3xD7mm M3x8mm
M2.5x11mm
P.6
SolderSolder
TWM
KP0011310
ESC Motor
Optional Electric Power
Package
PWA2.6x12mm Screw
4
First insert the grommet to the
cowling then apply screw.
This step is for electric powered. Please follow step 8B if your model is engine powered.
d1.5xD6.5mm
Grommet
Cowling
Fuselage
PWA2.6x12mm
d1.5xD6.5mm Silicon Grommet Screw
4
Double - sided Tape
PA3x12mm Screw
2
Electric
8A
PA3x12mm
Ø57mm Spinner
TWM HW3112400
PROPELLERADAPTORWRENCH
11x8E Propeller PL6211108
PWA2.6x12mm
d1.5xD6.5mm
1
2
3
4
Battery Battery Tie

A335PO31111509
P.7
Optional Glow Engine Power
Package
If 1/6 Piper PA-25 Pawnee is engine powered. Please follow this step.
Engine Mount PL5111030
M3x20mm
d3xD7mm
Engine
8B
Throttle Pushrod
3x3mm
Washer
2mm
Washer
2mm
M2 Nut
Throttle Servo.
1.5mm
PWA2.6x12mm Screw
4
First insert the grommet to the
cowling then apply screw.
d1.5xD6.5mm
Grommet
Cowling
Fuselage
PWA2.6x12mm
d1.5xD6.5mm Silicon Grommet Screw
4
PA3x12mm Screw
2
PA3x12mm
Ø57mm Spinner
11x6 Propeller PL62231106
PWA2.6x12mm
d1.5xD6.5mm
PlasticTube
d2xD3x115mm
Throttle Pushrod
Ø1.2x250mm
Fuel Tank 320CC Cable Tie 1.5x5x400mm
Throttle Servo Linkage Connector
Plywood 3x10x32mm
Double - sided Tape
103mm
4.06in.
M3 Nut
d3xD7mm
M3x25mm
1
2
3
4
5
Double - sided Tape 40x100mm
Illustration is for inverted
mounting. You can mount
the engine upright or
sideways simply by rotating
the engine mount. Thrust
angles will not be affected.

A335PO31111509
Apply instant type CA glue to both sides of each hinge.
P.8
Aileron Pushrod
10
PB2x20mm Screw
8
Bottom View
Ø1mm pilot holes for World Models horn are pre-drilled.
Please look for pin-hole marks at under side of control surfaces.
Straper Fuel Tube
D6x5mm
PB2x20mm
PB2x16mm
Clevis
Tri-horn
M3x14mm
Pushrod
Pushrod (For Flap)
Ø1.8x105mm
Pushrod (For Aileron)
Ø1.8x115mm
Fuel Tube
D6x5mm
PB2x16mm Screw
4
Aileron Servo
9
PWA2x8mm n Screw
16
1.5mm
PWA2x8mm
Servo Mounting Panel (L)
Servo Mounting Panel (L)
Servo Mounting Panel (L)
Pushrod (For Aileron)
Ø1.8x115mm
Pushrod (For Flap)
Ø1.8x105mm
Servo Mounting Panel (R)
Bottom View
1.5mm

A335PO31111509
P.9
d3.2xD12mm Washer
4
Main Wing
11
PA3x22mm Screw
4
PA3x22mm
d3.2xD12mm
PA3x22mm
d3.2xD12mm
Insert carbon wing tubes into right wing, apply the PA Screws.
Insert the right wing tubes through the Fuselage, and then install the left wing.
Press the wings against the fuselage then apply PA screws to the left wing.

A335PO31111509
P.10
d3xD7mm Washer
12
Wing Struts
12
d3xD7mm Washer
M3 Nut
d3xD7mm Washer
M3x12mm
Wing Strut Cover
Wing Strut Cover
M3x12mm
M3x15mm
M3 Nylon Insert Lock Nut
M3x12mm Socket Head Screw
6
M3 Nylon Insert Lock Nut
2
M3 Nut
4
M3x15mm Socket Head Screw
4
M3x15mm
M3 Nut
d3xD7mm Washer
d3xD7mm Washer
d3xD7mm Washer
M3x12mm
M3 Nylon Insert Lock Nut

A335PO31111509
P.11
Radio
13A
Radio
13B
1
2
3
4
5
6
IDSET
Aileron Servo (L)
Flap Servo (L)
Flap Servo (R)
180mm Y-Cord
180mm Y-Cord
Aileron Servo (R)
Rudder Servo
Receiver
Elevator Servo
ESC
Plug in the Aileron Servos wire to channel 1
Plug in the Elevator Servo wire to channel 2
Plug in the ESC Throttle wire to channel 3
Plug in the Rudder Servo wire to channel 4
Plug in the Flap Servos wire to channel 6
Plug in the Aileron Servos wire to channel 1
Plug in the Elevator Servo wire to channel 2
Plug in the Throttle Servo wire to channel 3
Plug in the Rudder Servo wire to channel 4
Plug in the Flap Servos wire to channel 6
Flap Servo (L)
Flap Servo (R)
180mm Y-Cord
1
2
3
4
5
6
IDSET
Aileron Servo (L)
Throttle Servo
180mm Y-Cord
Aileron Servo (R)
Rudder Servo
Receiver
Elevator Servo
Battery Mat
This step is for electric powered. Please follow step 13B if your model is engine powered.
If P1/6 Piper PA-25 Pawnee is engine powered. Please follow this step.
Fuel Tube D6x5mm
Straper Pushrod Connector
Plywood 3x30x53mm
Rudder Pushrod
Ø1.8x785mm
Rudder Servo
Elevator Servo
Elevator Servo
Pushrod Connector
J1(Pushrod Ø1.8x73mm)
J1
J2
Elevator Servo
J1(Pushrod Ø1.8x73mm)
J1
J2
Sponge
60x70x130mm
Receiver
Fuel Tube D6x5mm
Straper Pushrod Connector
Rudder Pushrod
Ø1.8x785mm
Rudder Servo
Elevator Servo Sponge
60x70x130mm
Receiver
Battery

A335PO31111509
Canopy & Pilot
15
PWA2.3x8mm Screw
4
d1.5xD6.5mm Silicon Grommet
4
PWA2.3x8mm
Silicon Grommets
Canopy
Fuselage
Pilot
Battery Cover
14
P.12

A335PO31111509
P.13
Control Throws
17
12mm
12mm
Elevator
20mm
20mm
Rudder
8mm
8mm
Adjust the control throws as shown in the diagram. These throws are good for general
flying. You can adjust according to your personal preference.
Wing Setting
16
A=A` B=B` C=C`
C`
C
B B`
A`A
20mm
Flaps (near fuselage )
Ailerons ( away from fuselage )

A335PO31111509
# 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.
# is specially designed to be powered by KM37490750 Outrunner Motor
or
2-stroke 0.40-0.46 engine, using a more
powerful engine does not mean better performance.
In fact, over powered engine may cause
structural 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. Extreme caution should be exercised when working with electric powered models. Make sure the
propeller is cleared of all objects, especially your hands before connecting the battery to the model. Make sure
you understand the operation of the ESC (Electronic Speed Control) by studying the ESC manual. Once you
plug in the battery for electric powered model, always treat the propeller as a rotating one, as accidental
movement of the throttle stick will spin the propeller and could cause injuries.
# 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.
P.14
Important Safety Precautions
Warning!
C.G.
18
The ideal C.G. for electric powered model is 76mm ( 3 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.
For glow engine powered model, set C.G. at 80mm ( 3.2 in. ) with
empty tank to compensate for weight of fuel.
76mm
C.G.
3 in.
http://www.theworldmodels.com/para/instruction/instructionManuals.php
1/6 PIPER PA-25 PAWNEE

A335PO31111509
LINKAGE CONNECTOR
HW7111050 & HW7111060
After fastening the round nut, make sure that
the linkage connector can rotate freely.
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.
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 toAirBorne Models, 4749-K,Bennett Drive, Livermore, CA94551 USA.
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 callAirBorne Models at 925 3710922 for any assistance in filling this
form.Thank you very much for purchasing our product.

A335PO31111509
This transparent 3D template
is used for position guidance
of the actual cutting of the
pre-painted cowling.
Usage of the transparent 3D template
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.
1 2
3 4

A335PO31111509
Radial Mount Adaptor Set
Large Clevis

Small Clevis

Pl8210010
KM37490750
Outrunner Motor 37 / 49 -750kv
-Kv (rpm / V): 750
-Operating Power: 590 W
-Operating Voltage: 8.5 - 18V
-Operating Current: 40A
-Peak Current: 65A (max.15 sec.)
-Internal Resistance: 34 m ohms
-Diameter: 37.2 mm
-Length: 49.4 mm
-Weight: 183 g
-Shaft Diameter: 5 mm
-Shaft Length: 20.6 mm
-Mounting Screw:
-M3 (Front) and M2.5 (Back)
-Distance of Mounting Holes:
25mm (Front) and 15.5mm (Back)
HW3112400
Electronic Speed Control 15A
Code No. Size
KC2015A01 37 x 19 x 7mm 1 pc
-Current : 15A continuous
-Weight : 22g (with wires)
-BEC output : Switch 5V / 1.5A
-Input :
Bec function for 7 - 8 cells;
(Nimh / Nicd) operation

A335PO31111509
Optional Parts
Clevis Wrench
Code No. Size Package
PL8210010 1 set
Small Clevis Large Clevis
Field Stand
Code No. Size Package
Code No. Size Package
MS9111450 600 x 240 x 350mm 1 pc
( ACCESSORIES)
180mm Extension
Code No. Size Package
KW0011800 180mm 1 set
Charge Receptacles
Code No. Size Package
KP0041300
180mm Y-Cord
Code No. Size Package
KW0021800 180mm 1 pc
Special tool for clevis installation.
Suitable for standard and small
(EP) clevis.
Fuel Filler
Code No. Size Package
PL8110030 15 x 22 x 49mm 1 x 1 pc
SV4031 40.6 x 20 x 37mm 1 set
Speed : 0.17 sec / 60° @4.8V
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
Standard Servo

A335PO31111509