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Summary of Contents for arf EXTRA300L
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Page 1: Instruction Manual
ARF MODEL EXTRA300L 20CC V2 Instruction Manual This plane is designed for electric motor & gas engine. - Page 2 Dear Customer, Thanks for purchasing this newly designed EXTRA300L aerobatic RC airplane. This plane is to be powered by brushless motor, nitro and gas engine. Its weight is about 8.5Lbs. It’s good for imac and free flight. It’s a beautiful plane with amazing flight performance.
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Page 3: Specifications
By the act of using the final assembled model, the purchaser/operator accepts all resulting liability. ARF MODELS WARRANTY AND RETURN POLICY We guarantee that the plane is in perfect condition at purchase. The warranty will be voided after modifications and usages. If you have any questions or find any issues, please contact the distributors in your area. - Page 4 Features: Newly designed structure Two pieces removable wings Aerofoil tail wings PVC canopy Power by Electric motor & Gas engine Larger aileron and elevator design for excellent 3D aerobatic flying The air exit for the electric set up still needs to be inside the fuselage behind the rudder tray.
- Page 5 High performance cap head screws Flat nylon hinges for better flying strength High quality 2.5mm ball links assemblys New Fiberglass horn assembly...
- Page 6 High-quality durable rubber wheels Improved new Axle (the material of Axle is stainless steel ) Two options for landing gear: Anodized 6061 Aluminum or Carbon fiber Carbon fiber landing gear 6061 Aluminum landing gea...
- Page 7 New Carbon fiber tail wheel assembly Carbon fiber wing tube Canopy extended into cowl Quick release canopy latch...
- Page 8 Honeycomb Board carton packing for safer transportation Scheme A Silvery/red/black Scheme B White/blue/black...
- Page 9 Scheme C White/blue/red...
- Page 10 Items Required to Complete This Model: • Two switches with charging jacks for the Rx • Two high quality Rx batteries of • 1500-1800Watt electric Motor or significant capacity to power your 20-26CC Gas choice of servos. • Motor Appropriate propeller for your •...
- Page 11 Note: As with all kits, it’s a good idea to read all the instructions and study the parts before you begin construction. Handle the parts of this kit with care so you do not damage any of the structure or covering.
- Page 12 Please verify the accessories before assemble: Fiber glass servo horns: 4 single horns for ailerons and elevator. 1 dual horns for rudder. There is a layer of protection film on the horns. Please remove the film as shown following picture. Make sure to sand the horns to keep its strength.
- Page 13 Ball links: 8 for aileron and elevator. Pull-pull setup for the rudder. 5 Servo extension safety connector clips New Carbon fiber tail wheel assembly...
- Page 14 Screews for landing gear: 4(4x20mm) Hexagon bolts & 4mm stainless steel Self-locking nuts & washers : 4(2.5x12mm) Hexagon socket screws Screews & Washers for cowl & 4 PTFE Washers 4 Hexagon socket screw wrenches...
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Page 15: Wing Assembly
Motor mount for brushless motor Engine mount for nitro and gas engine Wing Assembly NOTE: There are pictures of different planes in this manual, however, this plane’s wings is assembled the same way. 1. It is much easier to install the twin control horns before installing the wing. Locate the fiberglass aileron control horns, ball links, and associated bolts and nylon-insert lock nuts. - Page 16 3. The slots for the supplied hinges are pre cut. Locate the hinges and dry fit the hinges and aileron into place and test the operation. The hinges should seat fully into the slots so that the hinge line gap is minimal while still allowing full aileron deflection.
- Page 17 8. Cut the covering from the aileron servo slots from corner to corner and iron down inside the openings. Connect servo wire extensions to your servos and secure the connections with the supplied clips. Feed the servo wires into the wing and out the root.
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Page 18: Elevator Assembly
(Below long ALU arm is not included) Elevator Assembly NOTE: There are pictures of different planes in this manual, however, this plane’s elevators is assembled the same way. 1.Cut the covering over the hole for elevator on the fuselage. Glue the elevator to the fuselage. - Page 19 3．Install the horns the same way as the horns on the aileron. Use your radio to set the servo center position and install the large control horn onto the servo. Assemble the control rod and ball links and adjust the control linkage for proper geometry.
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Page 20: Tail Wheel Installation
glue as shown below. The picture is for illustration only. Actually, the connection of the 2 parts needs to be performed in the fuselage after the hinges are connected. Tail Wheel Installation 1. Start tail wheel assembly installation.For safety, please remove all screws and then re-assemble with thread locker. -
Page 21: Rudder Assembly
Drill a hole on the bottom of rudder, 130-145mm away for the hinge line. Secure the tail wheel spring with provided self-threading screw. Rudder Assembly NOTE: There are pictures of different planes in this manual, however, this plane’s rudder is assembled the same way. 1．Install the fiberglass control horns in the same way as you did the elevator horns. - Page 22 2．The EXTRA is supplied with a high quality set of pull-pull cables and ball-links. 3．Locate the pull-pull cable set, threaded couplers, brass swaging tubes, and ball-links. If the cable is one long piece, cut it into two equal length pieces. Thread one end of the one cable through a brass tube and then through one of the threaded couplers.
- Page 23 mount location. A coat hanger with a hook on the end can be useful here if you can’t reach the cable. 5.Use your radio system to center the rudder servo and attach either the supplied arm or an appropriate arm for your servo. Thread one of the ball links about half way onto one of the threaded couplers.
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Page 24: Main Landing Gear Installation
Main Landing Gear Installation NOTE: There are pictures of different planes in this manual, however, this plane’s landing gear is assembled the same way. 1. Locate the 2 fiberglass landing gear fairings and the black silicone tubing. Cut through one wall of the tubing along the length. Press the tubing onto the edges of the fairing as shown and secure glue. - Page 25 2. Bolt the main gear to the bottom of the fuselage using the supplied screws and stainless steel Self-locking nuts. Place the bolts in through the can tunnel opening with appropriate size spanner. Remember the gear will rake forward. 3. Adjust the position of the landing gear fairings, the secure with glue (shoe goo type).
- Page 26 4.Loosen out the inner nut, then apply thread lock to the axle. Tighten the nut back in place, allow the thread locker to dry. 5.Install the wheel axles to the landing gear and tighten the nylon-insert lock nut. Install one wheel collar onto the axle. Use a second wheel collar as a guide to leave a gap on the inboard of the axle.
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Page 27: Motor Installation
6．Fit the wheel pant in place and install using the two supplied screws. Use thread-lock to secure the screws in place. Repeat the above steps for the other main gear. Motor Installation 1．This EXTRA is designed for brushless motor & gas engine. It can also be flied with nitro engine. - Page 28 3．First install the motor mount on the firewall. Then install the motor. Adjust the motor mount to fit the cowl. 4． After adjusting the motor mount to the right position, lock the 4 screews, unscreew them, apply 30-minute epoxy, and tighten the screws to the previously-found position. 5，...
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Page 29: Cowling Installation
Cowling Installation NOTE: There are pictures of different planes in this manual, however, this plane’s cowl is assembled the same way. 1. Test fit the cowl first, make sure it fits well with canopy and fuselage. 2. Drill 2mm holes on cowl and fuselage. 3. - Page 30 FINAL RADIO SYSTEM INSTALLATION 1. Whether you 72 MHz systems or the newer 2.4 GHz systems, proper radio installation and care is vital to the safe and reliable operation of your aircraft. Follow the manufacturer’s instruction for installation guidance of receivers and batteries paying attention to factors such as vibration isolation, adequate cooling, and clearances.
- Page 31 leading edge of the wing at the root. More experienced pilots may want to set the CG further aft for more 3D capability. Varying weights of engines and radio gear will dictate how you should install each. The batteries can easily be located pretty much anywhere in the fuselage.
- Page 32 4. Fill your fuel tank making sure your vent line is not plugged or capped. With the canopy off, this is a good time to check for any fuel leaks. 5. Position the canopy in place and tighten the canopy screws. Be sure to use the supplied rubber washers under the screw heads.
- Page 33 Recommend Accessories（ （ （ （ Not included） ） ） ） ： ： ： ： * KUZA servo arm： ： ： ： For Futaba servo（25T）： 39mm/1.5in Single No. KAG0S72F 84mm/3.25in Dual No. KAG0D72F For Hitec servo（24T）： 39mm/1.5in Single No. KAG0S72H 84mm/3.25in Dual No. KAG0D72H For JR servo（23T）：...
- Page 34 * KUZA new Wingbag for 20CC Two color to choose: red/ black, blue / silver No. KAG0092 *3in C.F Spinner with Alu base No. KAG0126...
- Page 35 *3in C.F spinner for Nitro&Gas No. KAG0134 *3in Nylon Spinner No. KAG0187 5 Color:Red\White\Blue\Black\Yellow *3in Nylon Spinner with Aluminium Backplate No. KAG0197 Color:Red\White\Blue\Black\Yellow...
- Page 36 *3in Aluminium Backplate Hollowed-out Spinner for electric No. KAG0205 5 Color:Red\White\Blue\Black\Yellow...
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