35% Extra 300 ARF Assembly Manual
Notice Table of Contents Intro.................................................................................. 2 Product Support............................................................... 2 Specifications.................................................................... 2 Included Parts . ................................................................ 3 Contents of Kit and Parts Number..................................... 4 Safety Precautions and Warnings.....................................
Included Parts Packaged in Kit Fuselage with hinged rudder Right horizontal stabilizer with hinged elevator Left horizontal stabilizer with hinged elevator Wings with hinged aileron Cowl 1 1 1 1 1 Hardware bags Ball Links include 4-40 screws, locknuts and conical spacers Pushrods 35% Extra 300 ARF Assembly Manual Engine standoffs and bolts 3
21 8 Safety Precautions and Warnings 2 10 1 15 9 Read and follow all instructions and safety precautions before use. Improper use can result in fire, serious injury and damage to property. Components Use only with compatible components. Should any compatibility questions exist please refer to the product instructions, the component instructions or contact Horizon Hobby, Inc. 4 Flight 3 6 13 14 Fly only in open areas to ensure safety.
35% Extra 300 Operating Recommendations • I nspect your model before every flight to make certain it is airworthy. • Be aware of any other radio frequency user who may present an interference problem. • lways be courteous and respectful of other users of A your selected flight area. • hoose an area clear of obstacles and large enough to C safely accommodate your flying activity. • ake certain this area is clear of friends and spectators M prior to launching your aircraft.
Additional Required Tools Rotary too Cut-off wheel Sanding drum Drill Epoxy brush Felt-tipped pen Ruler Hex wrench: 1.5mm, 3mm, 4mm, 4.5mm, 3/32-inch, 5/32inch Iron Hobby knife with #11 blade Mixing cup Mixing stick Paper towel Pencil Hemostat Shoo Goo or Zap-A-Dap-A-Goo Phillips screwdriver: #1, #2 Pin vise Vise grip Masking tape Rubbing alcohol Nut driver: 1/4-inch, 1/2-inch, 9mm Heat gun Drill bit: 1/16-inch (1.5mm), 5/64-inch (2mm), 3/32-inch (2.5mm), 3/16-inch (5mm), 1/4-inch (6.
Aileron Servos Installation Required Parts Wing panel Control horns (4) Aileron pushrod (4) Ball link (4) Required Parts (not included) JR 8911HV with hardware (4) or similar digital servo JR 1-1/4-inch servo arm (4) JR heavy-duty servo extension, 24-inch (2) JR MatchBox™ (2) Required Tools and Adhesives Pin vise Thin CA Phillips screwdriver: #1 Drill bit: 1/16-inch Masking tape Adhesive-backed hook and loop 3/32-inch ball driver Scissors Dental floss (string) 3.
11. Screw on the control horn so the distance from the hinge line to the center of the pivot point measures 1 1/2-inch. installing the servo. Order of ball link assembly is bolt through the ball link, conical spacer with flat end facing the servo arm, servo arm and then nut. 8. Install the servo. 10. Attach the linkage to control horn and ball link. 12. Attach the ball link to 1 1/4-inch servo arm hole; in case of JR servo arm, this is the second outermost hole. 9.
on the spline that gets it as close to parallel to the hinge line as possible. If necessary, use the sub trim in the transmitter to adjust the neutral position so the arm is parallel to the hinge line. Attach the linkage to the servo arm and adjust the length using a Hangar 9 Pro-Link™ adjustment tool so the aileron is at the neutral position. 18. Assemble the servo linkage following the same steps as the outboard servo.
MatchBox Programming Hints 21. Apply a piece of masking tape to the back of the MatchBox. The pointers below can help make matching servos easier. This is not to take the place of the MatchBox instruction manual. 1. Connect the outboard servo to the MatchBox and then make all adjustments to servo center and travel adjustments in the transmitter programming. No adjustments to this servo should be made in the MatchBox. 2.
Elevator Servos Installation Required Parts Elevator panel Ball link (2) Control horns (2) Elevator pushrod (2) Required Parts (not included) JR 8911HV or similar digital servo (2) JR 1 1/2-inch servo arm (2) JR heavy-duty servo extension, 36-inch (2) Required Tools and Adhesives Pin vise Thin CA Drill bit: 1/16-inch String (Dental floss) 3/32-inch ball driver 3. Using a pin vise, drill the servo mounting screw. 5.
hole. Use a commercially available safety connector instead of the string and masking tape to secure the connector. 9. Prepare the linkage and control horn for installation. 12. Mount the servo arm so it is perpendicular to the center line of the stab, make adjustment to sub-trim if necessary. 8. Mount the servo so that the output shaft is closer to the leading edge of the elevator. Pass the extension through the slot provided in the root of the elevator panel.
Rudder Installation 13. Apply a drop of threadlock to the servo center screw and tighten the screw. This is the outer hole in the JR Aluminum arm. Required Parts Fuselage Hinge rod Rudder Required Tools and Adhesives Drill Pliers Petroleum Jelly/Industrial lubricant 15. Connect the ball link to 1 1/2-inch servo arm. In case of JR Aluminum servo arm, this is the outermost hole.
Tail Wheel Assembly Installation Required Parts Tail gear and screws T-bracket and screws Springs Required Tools and Adhesives 2.5mm and 7/64-inch ball driver Blue threadlock Felt-tipped pen Thin CA Pin vise 3. Cut excess rod long enough (1mm) that it is easy to 1. Mount the T-bracket so it is parallel to the rudder horn bolt and mark using a felt-tipped pen. grab and pull out when needed for transportation. The tail wheel bracket will stop the rod from backing out of the hinges. 4.
Rudder Servo Installation Required Parts Fuselage Ball link (1) Rudder pushrod (1) Required Parts (not included) JR 8911HV or similar digital servo (1) JR 1.5-inch servo arm (1) JR heavy-duty servo extension, 24-inch (1) 6. Mount the tail gear. Required Tools and Adhesives Pin vise String (Dental floss) 3/32-inch ball driver Phillips screwdriver: #1 3. Mount the servo so the output shaft is closer to the rudder hinge line and mark the mounting lugs.
apply some CA to harden the wall. Once CA is dry, mount the 7. Mount the control horn. Adjust the height to 1 7/8 inch servo. from the rudder hinge line to the center of the pivot point on the horn. 8. Attach the ball link to 1 1/2-inch servo arm. 10. Apply threadlock to the servo center screw and mount the servo arm. 11. Mount the servo arm setscrews. 6. Prepare the servo linkage. 9.
Main Gear and Wheel Pants Installation Required Parts Landing gear Wheel collars (4) Locknuts (4) Lock washers (4) Wheel pants (2) Required Tools and Adhesives 3mm ball driver Crescent wrench Threadlock Thin CA 3/32-inch ball driver 2. Pass the cuffs through the landing gear legs as pictured below so it fits the contour of the fuselage. Try the cuff and gear on the fuselage if in doubt about orientation. 4. Each wheel axle has two flat spots.
6. Install the wheel pants. The order of installation is: bolts, lock washers then washers. 8. Once both wheel pants and wheels are assembled, the gear should look like this. 7. The wheel needs to be in the center of the pant as in the picture below. If the wheel is rubbing against the wheel pant, make sure to correct this by loosening the wheel collars and adjusting the wheel position. 9. To install the landing gear to the fuselage, use a long 3mm ball driver and #9 socket.
Engine and Throttle Servo Installation Required Parts Fuselage Required Parts (not included) DA-120 Engine JR-537 servo (1) JR 24-inch servo extension Wood plate DA stock mufflers Required Tools and Adhesives Threadlock 4.5mm hex wrench Hobby knife with #11 blade Felt-tipped pen Pin vise #1 Phillips screwdriver Rotary tool with sanding drum 30-minute epoxy Acid brush Mixing cup 1. Mount the engine using ¼-20 bolts and wood spacers provided and make sure to apply threadlock to all the bolts.
6. Prepare the throttle servo linkage by attaching the ball links to the ends. Note the ball link should be mounted below the servo arm as pictured. 5. To harden the mounting walls in the wood, install the servo screws and back them out. Then apply thin CA into the holes. Once CA is dry install the servo. The pictures below show this process sequentially. 7. Slightly enlarge DA throttle arm hole by drilling with 3/32-inch and then 7/64-inch drill bits to accept the 4-40 ball link. 4.
9. Mark where the throttle linkage touches the engine box. 11. Complete the throttle linkage installation by powering servo and making adjustments through the radio. 10. Using a rotary tool and sanding drum, remove some of the edge of the engine box so the throttle linkage has a straight shot to the engine throttle arm with no binding.
In-Cowl Mufflers Installation Required Parts Fuselage Wood plate Required Parts (not included) DA compact mufflers Required Tools and Adhesives Threadlock Rotary tool Cutting wheel 4mm hex wrench Sanding drum 4. Use a sanding drum to shape the stacks on the cowl. NOTICE: Always refer to the product’s instructions for installation, use and safety. WARNING: This product can become extremely hot when in use, which could lead to burns. 1.
Canister Installation Required Parts Silicone tubing Required Parts (not included) MTW 75 Canister 50mm drop header, 10 1/2-inch header length for MTW TD75 canister setup Couplers Clamps 6. Mix 30-minute epoxy and glue the wood plate in place to block the canister tunnel. Required Tools and Adhesives Hobby knife Clamps Vise grip Masking tape Acid brush Ruler or caliper Cutting wheel Felt-tipped pen Hobby knife Iron Industrial lubricant Mixing cup and sticks Rotary tool 2.
8. Complete the header/canister assembly as pictured below. The picture below shows how the mount looks after silicone tubing is properly wrapped around the canister mount. 4. Recommended header length for MTW TD75 canister and DA-120 is 10 1/2-inches. 6. Insert the header and canister into the coupler. Leave 1/8--1/4-inch gap between header and pipe. 9. Slide the canisters inside the tunnel and into the mount. Mount the header using blue threadlock and gasket. 7.
Tuned Pipe Installation Required Parts Pipe mounts Silicone tubing Required Parts (not included) MTW RE2 Pipe 50mm drop header, 11 1/2-inch for RE2 tuned pipe setup Couplers Clamps 10. Cut and remove the bottom former of the cowl for canister exits using a rotary tool and cutting wheel. Required Tools and Adhesives Hobby knife 30-minute epoxy Vise grip Ruler Masking tape Acid brush Felt-tipped pen Clamps Iron 100-grit sandpaper Industrial lubricant Mixing cup and sticks 2.
7. Trial fit the mount before gluing to the fuselage. If it needs adjustment use 100-grit sandpaper and adjust for a snug fit. 4. Remove the balsa ramp. 5. Iron down the edges and make sure to remove any 9. Apply some epoxy to the fuselage where the mount interlocks and the walls where the mount touches. Note: Make sure that the sandpaper is on a flat surface and carefully remove a small amount until fit is perfect. Do not over sand the mount. 10.
where clamps are using a heat gun at high setting. Do this for a few minutes and allow some time for cooling. Repeat this one more time. This creates a good grip and reduces chance of pipe/header slipping out in flight. It is also recommended to do this before the first flight. Let engine idle for 3 to 4 minutes to warm up the couplers, gradually increasing the throttle to half to get the engine hot and then allow a cool- down period before the first flight.
Receiver and Ignition Battery Installation Required Parts Fuselage Hook and loop roll Required Parts (not included) (2) 4000mAh 2-cell Spektrum Li-Po (1) 2000mAh 2-cell Spektrum Li-Po Picture of the aft end of the tuned pipes in the tunnel. Required Tools and Adhesives Medium CA Scissors Adhesive-backed hook and loop 3. Cut 3 pieces of opposite side of the hook and loop that are glued to the batteries. 1. Cover the back of the batteries with pieces of masking tape as in the picture below. 4.
Ignition Module, Switch and Regulator Installation Required Parts Fuselage Required Parts (not included) JR 5203 regulator Ignition Module JR heavy-duty switch or similar JR heavy-duty 6-inch extension 5. Cut 3 pieces of hook and loop from the roll provided in the kit. Required Tools and Adhesives Medium CA 1/4-inch Du-Bro foam Scissors Adhesive-backed hook and loop 1. Apply some pieces of masking tape to the back of the ignition module. 3. Glue a piece of hook and loop using medium CA. 6.
5. Cut the opposite side of hook and loop to the ignition module and glue to the engine box. 8. Glue a piece of industrial-strength hook and loop using medium CA to the back of the regulator over the masking tape. 10. Mount the regulator. 6. Cut a piece from the hook and loop roll provided in the kit and strap the ignition module in place. 7. Apply a piece of masking tape to the bottom of the ignition regulator. 30 9.
Fuel Tank, Fill and Over Flow Installation Required Parts Fuselage Fuel tank Required Parts (not included) Hangar 9 Fuel filler and T Required Tools and Adhesives Drill and bits (1/16-inch, 1/8-inch, 1/4-inch) Zip tie Double-sided tape Medium CA Rotary tool Sanding Drum (3/8-inch) 1/2-inch socket Using a rotary tool and the sanding drum, open up the hole. Base of the sanding drum is same size of the fuel filler housing diameter. 1. Fuel tank comes assembled and installed.
Note: Looping the vent line behind the tank will prevent gas from siphoning through the vent line in flights and will increase flight time. 7. The fill line connects to the T-fitting in the fuel line. 4. Drill a 1/8-inch hole in the bottom left side of the engine box. Then increase the hole by drilling a 1/4-inch hole. Do not use the 1/4-inch drill bit without doing a smaller hole or the wood can be cracked. 6.
Cowl Mounting Pilot Installation Required Parts Cowl Fuselage (6) 4-40 screws, washers and lock washers Required Parts Canopy Required Tools and Adhesives 3/32-inch ball driver Threadlock Alcohol swab Shoo Goo Required Tools and Adhesives 3/32-inch ball driver 1. The cowl is secured at the top and the bottom. There are four 4-40 screws inserted through the inside of the fuselage. First the lock washer goes on the screw then the flat washer. Pilot 2.
Receiver, Switch and Throttle Servo Regulator Installation Required Parts Fuselage Required Parts (not included) JR 5203 regulator 3. Apply Shoo Goo to the underside of the shoulders and the rear rail of the canopy. 5. The model comes with instrument panels. Cut the instrument panel decals to size and install on the front and rear dash boards in the cockpit.
2. Glue opposite side of the hook and loop to the tray. 6. Throttle servo regulator is mounted next to the receiver using two pieces of hook and loop similar to receiver installation except it does not need foam. 3. Mount the receiver and secure it with a piece of hook and loop strap. 5. Apply a drop of threadlock on the switch mounting screws and mount the switch. 7.
Satellite Receiver Installation Required Parts Fuselage Required Parts (not included) (3 to 4) Satellite receivers Required Tools and Adhesives Double-sided tape Hook and loop Medium CA Masking tape Note: It is best to use 4 satellite receivers as this is a large model. However, with proper placement of the satellite receivers, 3 would be adequate. A Flight Log can help with correct placement of the satellite receivers. Check the health of the system before first flight. Location of Satellite receiver 1.
slight coupling in knife edge. Please note this is very CG dependant. Elevator: After the first flights, the CG position can be adjusted for your personal preference. 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 your model is 4 inches to 4 3/4 inches (10.2cm 12cm) to back from the leading edge of the wing tip as shown.
Applying Decals The model comes with decal sets and all decals are die-cut. All large decals should be applied wet so the bubbles can be worked out by squeegee. Allow 24 hours for decals to dry and adhesive to set. It is important to take all the wrinkles in the covering out and would be best to apply the decals after the plane has been taken to a flying field a couple of times and all the wrinkles have been removed. The following pictures show the location of decals.
Preflight Check Your Radio Safety Do’s and Don’ts for Pilots • • Before going to the field, be sure your batteries are fully charged per your radio’s instructions. Charge the transmitter and motor battery 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.
LIMITED WARRANTY What this Warranty Covers Horizon Hobby, Inc. (“Horizon”) warrants to the original purchaser that the product purchased (the “Product”) will be free from defects in materials and workmanship at the date of purchase.
United States: United Kingdom: Electronics and engines requiring inspection or repair should be shipped to the following address: Electronics and engines requiring inspection or repair should be shipped to the following address: Horizon Service Center 4105 Fieldstone Road Champaign, Illinois 61822 USA Horizon Hobby Limited Units 1-4 Ployters Rd Staple Tye Harlow, Essex CM18 7NS United Kingdom Online Repair Request visit: www.horizonhobby.
2011 Official Academy of Model Aeronautics Safety Code creates a hazard to persons or property. (d) Intentional flying behind the safety line is prohibited. Exceptions: 4. RC model aircraft must use the radio-control frequencies currently allowed by the Federal Communications Commission (FCC). Only individuals properly Effective January 1, 2011 Free Flight fuses or devices that burn producing smoke and are securely attached to the model aircraft during flight. A.
3. Model aircraft not fitting a specific category shall use those pull-test requirements as indicated for Control Line Precision Aerobatics. 4. The flying area must be clear of all utility wires or poles and a model aircraft will not be flown closer than 50 feet to any above-ground electric utility lines. 5. The flying area must be clear of all nonessential participants and spectators before the engine is started.
Hangar 9, UltraCote and MatchBox are trademarks or registered trademarks of Horizon Hobby, Inc. JR is a trademark of Horizon Hobby, Inc., registered in the U.S. The Spektrum trademark is used with permission of Bachmann Industries, Inc. © 2011 Horizon Hobby, Inc. horizonhobby.com Hangar9.
