THE WORLD MODELS Extra 300 EP User manual

THE WORLD MODELS
MANUFACTURING CO., LTD.
FACTORY PRE-FABRICATED
ALMOST-READY-TO-FLY (ARF) SERIES
MADE IN CHINA
www.theworldmodels.com
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.
Wing Span
Wing Area
Flying Weight
Fuselage Length
40.5 in / 1030 mm
288 sq in / 18.6 sq dm
26.5 oz / 750 g
34.5 in / 880 mm
Specifications
*Specifications are subject to change without notice.*
INSTRUCTION MANUAL
Requires : 4-channel radio w/ 4 micro servos,
Outrunner Motor w/ Propeller Adaptor
20A Brushless ESC, 3 cells 11.1V
2100mAh Li - Po battery & charger.

P.1
INDEX
BEFORE YOU BEGIN
BEFORE YOU BEGIN
PARTS LIST
ASSEMBLY
SAFETY PRECAUTIONS
P.1
P.2
P.3-P.10
P.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.
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
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

Parts List
COVERING:
LIGHTEX SGX252000
LIGHTEX SGX100 WHITE
LIGHTEX SGX540 PEARL GREEN
TOUGHLON STL412G CHECKER FERRARI RED/ GOLD
P.2
1. MAIN WING -- 1 pair
2. SCREW PM2x14mm -- 4 pcs
SCREW PA1.7x8mm -- 8 pcs
STRAPER -- 2 pcs
FUEL TUBE d2xD4x4mm -- 4 pcs
CLEVIS -- 2 pcs
HORN -- 2 sets
PUSHROD Ø1.4x85mm w/ Threads (For Aileron) -- 2 pcs
SERVO MOUNTING PANEL -- 1 pair
3. STABILIZER & ELEVATOR -- 1 set
FUSELAGE -- 1 pc.
4. VERTICAL FIN & RUDDER -- 1 set
5. TAIL LANDING GEAR -- 1 set
TAIL WHEEL Ø23mm -- 1 pc.
PLASTIC COLLAR d1xD5x2mm -- 2 pcs
SCREW PA2x8mm -- 2 pcs
SCREW PM2x8mm -- 1 pc.
M2 NUT -- 1 pc.
ALUMINUM PLATE 0.3mm -- 1 pc.
6. SCREW PM2x10mm -- 4 pcs
CLEVIS -- 2 pcs
FUEL TUBE d2xD4x4mm -- 2 pcs
HORN -- 2 sets
PUSHROD Ø1.4x375mm w/ Threads (For Elevator) -- 2 pcs
7. SCREW PM2x10mm -- 2 pcs
CLEVIS -- 1 pc.
FUEL TUBE d2xD4x4mm -- 1 pc.
HORN -- 1 set
PUSHROD Ø1.4x455mm w/ Threads (For Rudder) -- 1pc.
8. FOLDING PROPELLER SET (10x5) -- 1 set
SCREW PM2x12mm -- 2 pcs
SPINNER Ø45mm -- 1 pc.
SCREW PM3x6mm -- 4 pcs
WASHER d3xD7mm -- 4 pcs
COWLING -- 1 pc.
SCREW PWA2x8mm -- 4 pcs
9. MAIN LANDING GEAR -- 1 set
MAIN WHEEL Ø40mm -- 2 pcs
WHEEL PANTS -- 1 pair
SCREW PA2.6x10mm -- 3 pcs
SCREW PM3x25mm -- 2 pcs
WASHER d3xD7mm -- 2 pcs
M3 NUT -- 2 pcs
COLLAR Ø3.1mm w/ Set Screw -- 2 sets
COPPER TUBE d3.1xD4x5mm -- 2 pcs
ALUMINUM PLATE 0.5mm -- 2 pcs
SCREW PA2x6mm -- 4 pcs
WASHER d2xD5mm -- 4 pcs
10. EYE SCREW PA2.5x10x23mm -- 2 pcs
WING TUBE d9.6x240mm -- 1 pc.
RUBBER BAND D1x30mm -- 2 pcs
11. STRAPER -- 2 pcs
FUEL TUBE d2xD4x4mm -- 2 pcs
BATTERY TIE 200mm -- 1 pc.
SPONGE 10x50x150mm -- 1 pc.
DOUBLE-SIDED TAPE 30x35mm -- 1 pc.
PUSHROD Ø1.4x70mm (For Elevator) -- 1 pc.
PUSHROD CONNECTOR PL4410020 -- 1 set
12. CANOPY -- 1 pc.
SCREW PM2x12mm -- 1 pc.
WASHER d2xD5mm -- 1 pc.
M2 NYLON INSERT LOCK NUT -- 1 pc.
MOUNTING PLATE 5x15mm PL4114050 -- 1 pc.
PILOT PC001050B -- 1 pc.
13. DECALS -- 1 set

P.3
Please choose either 02L & 02R or 03L & 03R or 04L & 04R that suits your servo.
Clevis
Horn
Fuel Tube
d2xD4x4mm
PM2x14mm
Pushrod
Ø1.4x85mm
2mm
Aileron Servo Lead
Ø1mm pilot holes for World
Models tri-horn are pre-drilled.
Please look for pin-hole marks
at under side of control surfaces.
8
PA1.7x8mm Screw
Straper Fuel Tube
d2xD4x4mm
PA1.7x8mm
1
Aileron Servo
Main Wing
2
P.3
PM2x14mm Screw
4
Bottom View
Bottom View
Apply instant type CA glue
to both sides of each hinge.
02L
03L
04L
02R
03R
04R

4Vertical Fin & Rudder
P.4
Completed
C
C=C
C
Apply instant type CA glue to both sides
of each hinge.
1 2
3
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.
*Also refer to step 13 Wing Setting
A=A
A A
(Stabilizer)
(Main Wing)
B
B=B
B
Stabilizer & Elevator
3

P.5
6Elevator Pushrod
Ø1mm pilot holes for World Models horn are pre-drilled.
Please look for pin-hole marks at under side of control surfaces.
Ø1mm pilot holes for World Models horn are pre-drilled.
Please look for pin-hole marks at under side of control surfaces.
40mm
125mm
7Rudder Pushrod
PM2x10mm Screw
2
PM2x10mm Screw
4
Bottom View
Bottom View
5Tail Landing Gear
PM2x8mm Screw
PA2x8mm Screw PA2x8mm
M2 Nut
1
1
2
Plastic Collar
PM2x8mm
M2 Nut
Clevis
Fuel Tube
d2xD4x4mm
Horn
PM2x10mm
Pushrod
Ø1.4x375mm
Clevis
Horn
Fuel Tube
d2xD4x4mm
PM2x10mm
Pushrod
Ø1.4x455mm
20mm
60mm
Bottom View
1.5mm
2mm
2mm
1.5mm

P.6
9Main Landing Gear
8Outrunner Motor / Cowling
PM2x12mm Screw
PM2x12mm
PM2x12mm
PM3x6mm Screw
PM3x6mm
d3xD7mm Washer
PA2.6x8mm Screw
PA2.6x8mm
PWA2x8mm Screw
PWA2x8mm
Don’t over-tighten the PM2 screws, let the propeller
blades align themselves when spinning.
Ø40mm Spinner
M5 Nut
Make sure rotating
motor casing is not in
contact with wirings or
anything.
Outrunner Motor 28/ 30
KM0283010
Propeller Adaptor
(d3xD5) HW2340100
Optional Parts
Completed
PA2x6mm
d2xD5mm
Washer
PM3x25mm Screw
PA2.6x10mm Screw
3.1mm Collar
PA2x6mm Screw
d3.1xD4x5mm Copper Tube
M3 Nut
3
4
2
2
2
2
d3xD7mm Washer
d2xD5mm Washer
4
4
Bottom View
PA2.6x10mm
d3xD7mm
Washer
Don't over-tighten the
PM3 screws, too much
stress on the screws
could split the firewall.
43
4
21
2
4
4
2
Copper Tube
d3.1xD4x5mm
PM3x25mm
Plate 0.5mm
d3xD7mm Washer
Wheel
Ø40mm 3mm
Set Screw
3.1mm
Collar
M3 Nut
1.5mm
1mm

P.7
10 Main Wing
Bottom View
Eye Screw
PA2.5x10x23mm
Bottom
Up
90
Wing Tube
D9.6x240mm
Aileron Servo Lead
Rubber Band
1.5mm

11 Radio Equipment
Canopy
12
P.8
PM2x8mm Screw
PM2x8mm
Mounting Plate
1
Install and arrange the servo as shown in the diagram.
Front
Sponge
Battery
Battery Tie
Receiver
Pilot
Rudder Servo
Straper
20A Brushless ESC
Fuel Tube
d2xD4x4mm Double-Sided tape
Elevator Servo
Elevator Servo
Pushrod Connector
d2xD5mm Washer
d2xD5mm
Washer
M2 Nylon Insert Lock Nut
M2 Nylon Insert Lock Nut
1
1
Completed
J1(Pushrod Ø1.4x70mm)
Elevator Pushrod
Ø1.4x70mm
KA1.7x6mm
J1
J2
J2(Pushrod Ø1.4x375mm)
2mm

P.9
13 Wing Setting
Adjust the wing and fuselage configuration as shown in the diagrams.
A'
A=A' B=B' C=C'
C'
B
C
A

P.10
14 Control Throws
C.G.
Adjust the control throws as shown in the diagram.
These throws are good for general flying. You can
adjust according to your personal preference.
The ideal C.G. position is 63.5mm (2.5 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.
15
63.5mm
C.G.
2.5 in
Important Safety Precautions
E252XM0803
Rudder 30mm
30mm
20mm
20mm
10mm
10mm
Elevator
Aileron
Warning!
# 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 KM0283010 Outrunner Motor.
# 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.

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 to
AirBorne Models, 2403 Research Drive, Livermore, CA 94550 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 call AirBorne Models at 925 371 0922 for any assistance in filling this form.
Thank you very much for purchasing our product.

http://www.theworldmodels.com
E252XM0803