450w motor system requires: 5-channel radio w/ 5 mini servos, outrunner motor km0374810,
w/ propeller adaptor hw2340300, 40a
brushless esc with 11x8e propeller, 4 cells
14.8v 3200 mah li - po battery & charger. (17 pages)
Summary of Contents for THE WORLD MODELS Extra 300 EP
Page 1
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. THE WORLD MODELS MANUFACTURING CO., LTD. FACTORY PRE-FABRICATED ALMOST-READY-TO-FLY (ARF) SERIES MADE IN CHINA www.theworldmodels.com...
INDEX BEFORE YOU BEGIN PARTS LIST ASSEMBLY P.3-P.10 SAFETY PRECAUTIONS P.10 BEFORE YOU BEGIN Read through the manual before you begin, so you will have an overall idea of what to do. 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.
Main Wing Aileron Servo Lead Apply instant type CA glue to both sides of each hinge. Bottom View Aileron Servo PA1.7x8mm Fuel Tube Straper d2xD4x4mm PM2x14mm Screw PA1.7x8mm Screw Ø1mm pilot holes for World Models tri-horn are pre-drilled. Please look for pin-hole marks at under side of control surfaces.
Stabilizer & Elevator Temporary install the main wing, adjust (Stabilizer) Apply instant type CA glue leveling of the stabilizer to make it as to both sides of each hinge. (Main Wing) parallel to the main wing as possible. *Also refer to step 13 Wing Setting Vertical Fin &...
Tail Landing Gear PA2x8mm Screw PA2x8mm PM2x8mm Screw 1.5mm M2 Nut 1.5mm Plastic Collar M2 Nut PM2x8mm Bottom View Ø1mm pilot holes for World Models horn are pre-drilled. Elevator Pushrod Please look for pin-hole marks at under side of control surfaces. PM2x10mm Screw 40mm PM2x10mm...
Outrunner Motor / Cowling Optional Parts PM3x6mm Screw PWA2x8mm Screw Outrunner Motor 28/ 30 KM0283010 PM2x12mm Screw PA2.6x8mm Screw Make sure rotating Propeller Adaptor d3xD7mm Washer motor casing is not in (d3xD5) HW2340100 contact with wirings or anything. Don't over-tighten the PM3 screws, too much PM2x12mm stress on the screws...
Page 8
Main Wing Bottom 1.5mm Eye Screw PA2.5x10x23mm Bottom View Wing Tube D9.6x240mm Aileron Servo Lead Rubber Band...
Radio Equipment Install and arrange the servo as shown in the diagram. Fuel Tube 20A Brushless ESC Front d2xD4x4mm Elevator Servo Double-Sided tape Elevator Servo Pushrod Connector Elevator Pushrod Ø1.4x70mm KA1.7x6mm J1(Pushrod Ø1.4x70mm) Battery Tie Straper Battery Receiver Rudder Servo Sponge J2(Pushrod Ø1.4x375mm) Canopy...
Page 10
Wing Setting Adjust the wing and fuselage configuration as shown in the diagrams. A=A' B=B' C=C'...
Control Throws Adjust the control throws as shown in the diagram. These throws are good for general flying. You can adjust according to your personal preference. Rudder 30mm 30mm Elevator 20mm 20mm Aileron 10mm 10mm C.G. The ideal C.G. position is 63.5mm (2.5 in.) behind the leading edge measured at where the wing meets the fuselage.
Page 12
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.
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