Extra 260 480 ARF Assembly Manual Specifications Wingspan: Length: Wing Area: Weight w/o Battery: Weight w/Battery: Radio: 43 in (1090mm) 40 in (1015mm) 375 sq in (24.2 sq dm) 23–24 oz (650–680 g) 26–29 oz (740–820 g) 6 channels w/ 4 servos Available from: www.modelflight.com.
Table of Contents Introduction Introduction..........................................................................2 Using the Manual.................................................................2 Trim Scheme ........................................................................2 Contents of Kit/Parts Layout ..................................................3 Required Tools and Adhesives ...............................................3 Optional Accessories...........................................
Contents of Kit/Parts Layout Large Replacement Parts: EFL2476 Wing Set w/Ailerons EFL2477 Fuselage EFL2478 Tail Set EFL2479 Pushrod Set EFL2480 Main Landing Gear EFL2481 Fuse Hatch EFL2482 Canopy EFL2483 Cowling EFL2484 Wheel Pants EFL2485 Wing Tube Small Replacement Parts: EFLA200 Micro Control Horns EFLA203 Micro Control Connectors EFLA219 Steerable Tailwheel Assembly EFLA222 Foam Park Wheels, 1 3/4-inch EFLA213 E-flite/JR/Horizon Decals Required Tools and Adhesives Tools & Equipment EFLA250 Park Flyer
Required Radio Equipment You will need a minimum 6-channel transmitter (for proper mixing and dual rate capabilities), crystals, micro receiver, and four sub-micro servos. You can choose to purchase a complete radio system that includes all of these items or, if you are using an existing transmitter, just purchase the other required equipment separately. We recommend the crystal-free, interference-free Spektrum™ DX7 2.
Notes on Lithium Polymer Batteries Lithium Polymer batteries are significantly more volatile than alkaline or Ni-Cd/Ni-MH batteries used in RC applications. All manufacturer’s instructions and warnings must be followed closely. Mishandling of Li-Po batteries can result in fire. Always follow the manufacturer’s instructions when disposing of Lithium Polymer batteries. Warning An RC aircraft is not a toy! If misused, it can cause serious bodily harm and damage to property.
Damage Limits Questions, Assistance, and Repairs HORIZON SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCT, WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. Further, in no event shall the liability of Horizon exceed the individual price of the Product on which liability is asserted.
Non-Warranty Repairs Should your repair not be covered by warranty the repair will be completed and payment will be required without notification or estimate of the expense unless the expense exceeds 0% of the retail purchase cost. By submitting the item for repair you are agreeing to payment of the repair without notification. Repair estimates are available upon request. You must include this request with your repair. Non-warranty repair estimates will be billed a minimum of ½ hour of labor.
Landing Gear Installation Required Parts Fuselage Main landing gear Wheel pant (L&R) 1 3/4-inch (45mm) wheel (2) 4-40 x 3/8-inch machine screws (2) #4 black washers (6) 4-40 nut (2) 4-40 locknut (4) 4-40 x 1 1/4-inch socket head screw (2) 2mm x 6mm wood screws (2) Required Tools and Adhesives Phillips screwdriver (small) Needle-nose pliers Nut driver: 1/4-inch Hex wrench: 3/32-inch 1. Place the landing gear onto the bottom of the fuselage. They will angle forward when installed in the correct direction.
2. Slide the 4-40 x 1 1/4-inch machine screw through one of the 1 3/4-inch wheels. Slide a black #4 washer so it fits against the wheel. Next secure a 4-40 lock nut against the washer. Make sure the wheel still spins freely. Thread a 4-40 nut onto the bolt. This nut will fit inside the wheel pant and keep the wheel pant from rotating. 3. Attach the wheel to the landing gear using a black #4 washer and 4-40 lock nut. 4.
Outrunner Motor Installation Required Parts Fuselage Brushless motor 4-40 x 3/8-inch socket head screw (4) #4 black washer (4) Required Tools and Adhesives Hex wrench:3/32-inch Screwdriver (Phillips #0) 2. Attach the Outrunner motor to the front of the firewall using four black #4 washers and four 4-40 x 3/8-inch socket head screws. Note: This section covers the installation of the recommended Park 480 Outrunner motor. The holes in the firewall match the mounting pattern of the X-mount. 1.
Cowling Installation 1. Solder any connectors to the speed control to connect to the motor battery and motor if necessary. Connect the ESC to the motor and secure it to the bottom of the motor box using hook and loop material. Actual ESC location may vary but proper air flow and cooling is important.
3. Slide the cowling onto the fuselage. Secure the cowl using four 2mm x 8mm sheet metal screws. Hint: Use thin CA to harden the holes drilled into the cowl mounting tabs. This will help to prevent the screws from vibrating loose in flight. 4. Slide the propeller adapter through the hole in the propeller. 5. Slide the 1/2-inch (13mm) plastic washer onto the adapter. 6. Slide the spinner backplate onto the adapter. Thread the propeller nut onto the adapter, but do not tighten it at this time.
7. Install the propeller assembly onto the motor shaft. Tighten the propeller nut using a hex wrench slipped through the hole in the propeller nut. Note: Make sure to check the balance of the propeller after enlarging the hole in the propeller. Note: Make sure to check the balance of the propeller after enlarging the hole in the propeller. 8. Snap the spinner cone onto the spinner. E-flite Extra 260 480 ARF Assembly Manual 1 Available from: www.modelflight.com.
Aileron Hinging 2. Slide four hinges into the slits in the aileron. Center the slot in the hinge with the hole drilled in Step 1. Place a T-pin in each hinge to prevent it from being pushed into the wing when installing the aileron. Required Parts Wing (left and right) Aileron (left and right) CA hinges (8) Required Tools and Adhesives T-pins Drill Drill bit: 1/16-inch (1.5mm) Thin CA Paper towel T-pins 1. Locate the positions for the hinges. Drill a 1/16-inch (1.
3. Slide the aileron into position. Check to make sure it can move without interference at the wing root and wing tip. Remove the T-pins and apply Thin CA to each hinge. Make sure the hinge is fully saturated with CA. Use a paper towel to clean up any excess CA from the wing and aileron. Make sure to apply CA to both sides of the hinge. 4. Firmly grasp the wing and aileron and gently pull on the aileron to ensure the hinges are secure and cannot be pulled apart.
5. Work the aileron up and down several times to work in the hinges and check for proper movement.
2. Place the servo in the wing. Guide the servo lead out through the opening at the wing root. 3. Secure the aileron servo using the screws provided with the servo. 4. Use a hobby knife to enlarge the inboard hole in the control horn to fit the 3 1/2-inch (89mm) long aileron pushrod wire. E-flite Extra 260 480 ARF Assembly Manual 1 Available from: www.modelflight.com.
5. Repeat Steps 1 through 4 for the other wing panel. 6. Use 6-minute epoxy to attach the control horn to the aileron. Attach the control horns for both the right and left ailerons at this time. 7. Attach the micro control connector to both servo arms. Be sure to use the included retainer to secure the micro control connector to the servo arms. 18 E-flite Extra 260 480 ARF Assembly Manual Available from: www.modelflight.com.
8. Turn on the radio system and center the aileron trim and stick. Make sure the aileron servo is operating properly using the transmitter. Slide the pushrod wire through the micro connector. Install the servo arm parallel to the aileron hinge line. Center the aileron, and secure the position of the wire using the 2mm x 4mm screw and a Phillips screwdriver. 9. Use side cutters to remove any excess wire, leaving about 1/4 (5mm) excess wire past the control connector.
Wing Installation 2. Remove the hatch from the fuselage. Slide the wing panel with tube into position on the fuselage. Required Parts Fuselage Wing (right and left) Wing tube #4 washer (silver) (2) 4-40 x1/2-inch machine screw (2) Required Tools and Adhesives Hex wrench: 3/32-inch 6-minute epoxy Pliers 1. Slide the wing tube into a wing panel. 3. Slide the remaining wing panel into position. Secure the panels using 4-40 x 1/2-inch machine screws with #4 washers (silver) using a 3/32-inch hex wrench.
Stabilizer and Elevator Required Parts Fuselage w/wing installed Stabilizer CA hinge (4) Required Tools and Adhesives Hobby knife Ruler Thin CA 2. Measure from the stab tip to the wing tip. Adjust the stab until the measurements are equal. Elevator A Felt-tipped pen T-pins A 1. Position the stabilizer into the slot in the aft end of the fuselage. Check that the stabilizer is centered in the fuselage. A=A 3. View the airframe from the rear and make sure the wing and stab are parallel.
4. Double-check the adjustments from Steps 1 through 3. Use a felt-tipped pen to trace the outline of the fuselage onto the top and bottom of the stabilizer. 5. Use a sharp hobby knife to cut the covering slightly inside the lines drawn. Be very careful not to cut into the underlying wood, as this will weaken the stab and cause it to fail in flight. Note: You can use a soldering iron instead of a knife. This will eliminate the chances of cutting into the wood.
6. Slide the elevator into position, then the stabilizer. Note: Start with the two hinges at the center nearest the fuselage. Continue outward to the center hinges, then the hinges at the tips. Be careful not to damage the joiner section of the elevators. 8 . Check the alignment and make sure everything lines up. Wick Thin CA into the joint between the fuselage and stabilizer. Make sure to glue both top and bottom.
Rudder and Fin Required Parts Fuselage Fin Tail wheel assembly Required Tools and Adhesives Hobby knife Felt-tipped pen 6-minute epoxy 2. Hinge the rudder and fin, using the same process as described in Aileron Hinging. Use three hinges for this process. Rudder CA hinge (3) Thin CA Square Medium grit sandpaper 1. Roughen the tail wheel assembly using medium grit sandpaper. Use 6-minute epoxy to glue the tail wheel assembly into the rudder. 3. Place the fin in position on the fuselage.
4. Remove the covering from the bottom of the fin using the same technique used for the stabilizer. 6. Use thin CA to glue the fin to the fuselage. 5. Position the fin back onto the fuselage. Use a square to check the alignment between the fin and stabilizer. Lightly sand the bottom of the fin until the alignment is correct. E-flite Extra 260 480 ARF Assembly Manual 2 Available from: www.modelflight.com.
Rudder and Elevator Servos Required Parts Fuselage Micro control horn w/backplate (2) 5-inch (127mm) pushrod wire 2mm x 4mm screw (2) 4 1/2-inch (115mm) pushrod wire Micro control connector w/retainer (2) Servo (2) 18-inch (457mm) servo extension (2) Required Tools and Adhesives Phillips screwdriver (small) 6-minute epoxy 2. Use a hobby knife to enlarge the inboard hole in one of the remaining control horns. Attach the 4 1/2-inch(115mm) pushrod wire to the control horn. 3.
4. Install the micro control connector onto the elevator servo arm. Pass the elevator pushrod wire through the connector. With the radio on and elevator trim centered, center the elevator. Secure the elevator pushrod wire using the 2mm x 4mm screw and a small Phillips screwdriver. Note: The Extra 260 is designed to use an optional pull-pull rudder linkage when using a lightweight motor and battery. The items for the pull-pull system are available separately. 5.
Final Assembly Required Parts Fuselage Wing Canopy Receiver Battery Battery hatch 4-40 x 1-inch socket head bolt (2) #4 washer (2) Hook and loop tape Hook and loop strap Required Tools and Adhesives Hex wrench: 3/32-inch Felt-tipped pen Canopy glue 1. Plug in the elevator and rudder servos and ESC into the receiver. Mount the receiver to the inside of the fuselage using hook and loop material.
2. Place the canopy into position on the fuselage. Use a felt-tipped pen to trace the outline of the canopy onto the fuselage. 3. Use medium grit sandpaper to roughen the covering 1 /8-inch (3mm) inside the line drawn. Also roughen the outside 1/8-inch (3mm) of the canopy. Clean the sanded areas using a paper towel and rubbing alcohol. E-flite Extra 260 480 ARF Assembly Manual 2 Available from: www.modelflight.com.
4. Use Formula 560 canopy glue to glue the canopy to the fuselage. Use masking tape to hold the canopy in position until the glue fully cures. 5. With the aircraft fully assembled, install the battery into the battery compartment. Secure the battery using the hook and loop tape and the hook and loop straps. Note: Place a piece of hook and loop tape on the bottom of the battery and on the fuselage where the battery rests.
Control Throws The control throw measurements are taken at the widest point on the surface. 1. Turn on the transmitter and receiver of your aircraft. Check the movement of the rudder using the transmitter. When the stick is moved right, the rudder should also move right. Reverse the direction of the servo at the transmitter if necessary. 2. Check the movement of the ailerons using the transmitter. When the stick is moved right, the right aileron will move up and the left aileron will move down.
Center of Gravity Range Test Your Radio An important part of preparing the aircraft for flight is properly balancing the model. Caution: Do not inadvertently skip this step! The recommended Center of Gravity (CG) location for the Extra 260 480 is 3 inches (75mm) to 3 1/8 inches (79mm) back measured from the center of the leading edge of the wing next to the fuselage. 1. Before each flying session, be sure to range check your radio.
Preflight Flying Your Extra 260 480 Check Your Radio Before going to the field, be sure that your batteries are fully charged per the instructions included with your radio. Charge both the transmitter and receiver pack for your airplane. Use the recommended charger supplied with your particular radio system, following the instructions provided with the radio. In most cases, the radio should be charged the night before going out flying. Before each flying session, be sure to range check your radio.
2007 Official AMA National 4) I will operate my model using only radio control frequencies Model Aircraft Safety Code currently allowed by the Federal Communications Commission. (Only properly licensed Amateurs are authorized to operate equipment on Amateur Band frequencies.) 5) Flying sites separated by three miles or more are considered safe from site-to-site interference, even when both sites use the same frequencies.
Building and Flying Notes E-flite Extra 260 480 ARF Assembly Manual Available from: www.modelflight.com.
© 2007 Horizon Hobby, Inc. 4105 Fieldstone Road Champaign, Illinois 61822 (877) 504-0233 horizonhobby.com E-fliteRC.com 10244 Available from: www.modelflight.com.
