Christen Eagle II 90 ARF Assembly Manual
Notice Table of Contents Notice.................................................................................2 Meaning of Special Language............................................2 Introduction.......................................................................2 Product Support................................................................2 Specifications.....................................................................2 Included Parts Listing..................................................
Included Parts Listing Quantity Description and Usage 1 ������������ Fuselage with hatch, pushrods and landing gear attach bolts 1 ������������ Fin and rudder with hinges 1 ������������ Stabilizer with elevator and hinges 1 ������������ Upper left wing panel 1 ������������ Upper right wing panel 1 ������������ Lower left wing panel 1 ������������ Lower right wing panel 2 ������������ Wheel pants with axles and hardware 1 ������������ Landing gear 2 ������������ Landing gear intersection fairings 2 �������
Safety Precautions and Warnings 1 4 8 Read and follow all instructions and safety precautions before use. Improper use can result in fire, serious injury and damage to property. 5 4 Age Recommendation: Not for children under 14 years. This is not a toy. 3 3 2 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.
Safe Operating Recommendations • Inspect your model before every flight to ensure it is airworthy. • Be aware of any other radio frequency user who may present an interference problem. • Always be courteous and respectful of other users in your selected flight area. • hoose an area clear of obstacles and large enough to C safely accommodate your flying activity. • ake sure this area is clear of friends and spectators M prior to launching your aircraft.
Field Equipment Required Fuel (15% recommended) Saito Glow Plug Long Reach Glow Plug Wrench Metered Glow Driver XL with Charger 2-Cycle Sport Plug Ultra Fuel Pump (gas and glow) Evolution Oil SAIP400S HAN2510 HAN7115 EVOGP1 HAN155 EVOX1001Q Optional Field Equipment PowerPro™ 12V Starter 12V 7Ah Sealed Battery Power Panel Blue Block After Run Oil Self-stick weights, 6 oz Charger Spray cleaner Paper towels HAN161 HAN102 HAN106 EVOX1001 HAN3626 EFL3025 Required Adhesives 30-minute Epoxy Thin
Landing Gear Installation 3. Use medium CA to glue the landing gear cover in place on the bottom of the fuselage.
7. Fit the 20mm x 15mm plywood plate to the wheel pant so the blind nut aligns with the mounting hole in the wheel pant. Use medium grit sandpaper to sand the plate as necessary so the blind nut aligns with the hole in the pant. Use a small amount of 5-minute epoxy to glue the plate inside the wheel pant, being careful not to get glue in the blind nut. 8. Remove the hardware from the axle. Use a flat file to 11. Position the wheel pant on the landing gear.
Tail Installation Required Parts Fuselage Stabilizer with elevators Rudder with fin Black-covered balsa block Bottom wing (right and left) 12mm x 420mm aluminum tube 3. Remove the tape from the elevators. Use a drill and 5. Place the hinges in the elevator, resting the T-pin 1/16-inch (1.5mm) drill bit to drill a hole in the center of each against the leading edge of the elevator. hinge slot in the elevators and stabilizer.
7. Remove the T-pins from the hinges and make sure the gap between the elevators and stabilizer are as small as possible. Saturate the top and bottom of each hinge using thin CA. Allow the CA to cure before proceeding. Check that the hinges are secure by gently pulling on the control surface. If not, apply thin CA to any hinges that are not glued and recheck. Move the control surface through its range of motion several times to break in the hinges.
13. Once the stabilizer has been aligned, use a felt-tipped pen to transfer the outline of the fuselage onto the top and bottom of the stabilizer. 14. Remove the stabilizer from the fuselage. Use a hobby knife and a new #11 blade to trim the covering 1/16inch (1.5mm) inside the lines drawn in the previous step. Remove the covering, exposing the wood at the center of the stabilizer. Use a paper towel and denatured alcohol to remove the pen lines from the stabilizer and fuselage.
19. Mix 1/3 ounce (10mL) of 30-minute epoxy. Apply the epoxy to the exposed wood at the bottom of the fin as well as to the fuselage where the fin will come in contact with the fuselage. Slide the fin into position. Use a paper towel and rubbing alcohol to remove any excess epoxy from the fuselage. Use a square to check the alignment of the fin to the stabilizer. Use low-tack tape, if necessary, to hold the fin in position until the epoxy fully cures.
4. Use a pin vise and 5/64-inch (2mm) drill bit to drill the holes for the mounting screws. Use a #1 Phillips screwdriver to thread an M3 x 12 self-tapping screw in each hole. Remove the screw, then apply 2–3 drops of thin CA in each hole to harden the surrounding wood. 6. Slide the steering bracket on the tail gear wire so it is positioned 5/8-inch (8mm) from the end of the wire. Use a pin vise and 5/64-inch (2mm) drill bit to drill the hole through the rudder using the hole in the bracket as a guide.
3. Mount the receiver in the fuselage using a hook and loop strap and 1/4 inch (6mm) of foam rubber (not included). Plug the rudder and elevator servo into the appropriate ports of the receiver. Plug a 3-inch (76mm) extension in the ports that will be used for the aileron servos. The remote receiver is mounted using hook and loop tape (not included) inside of the fuselage above the servos.
8. Mount the switch harness in the fuselage using the hardware provided with the switch and a #1 Phillips screwdriver. There are two different locations in the fuselage for the switch, so use the one best suited for your switch. Plug the switch into the battery port of the receiver.
5. Prepare the aileron servo by installing the grommets and brass eyelets. Use a #1 Phillips screwdriver and the screws included with the servo to secure the servo to the cover. Make sure the output shaft for the servo aligns with the opening in the aileron servo cover. 6. Secure a 3-inch (76mm) servo extension to the aileron servo lead using string or dental floss so it does not disconnect inside the wing accidentally. 16 7. Use the radio system to center the aileron servo.
11. Thread a clevis on each end of the 3mm x 70mm threaded rod. Set the distance between the pins of the clevises so they are 35/8 inches (92mm) apart. Make sure each clevis is threaded equally on the rod. Cabane Strut Installation Required Parts Fuselage assembly Cabane strut (right and left) M3 nut (2) M3 washer (4) Upper wing center rib M3 x 10 socket head screw (6) 3. Place the cabane struts in position, noting their position as shown in the photo.
4. Place the upper center wing rib in position on the cabane struts. Start the M3 x 10 socket head screws that secure the rib to the cabane struts. 5. Use a 2.5mm hex wrench to slowly tighten the hardware securing the cabane struts in position on the fuselage. You may want to use hemostats to hold the M3 nuts when using them to attach the upper center wing rib to the struts. Again, make sure to use threadlock on all the fasteners to prevent them from vibrating loose.
5. Remove the template from the fuselage. Use a 7/32inch (5.5mm) drill bit to enlarge the holes in the firewall. 6. Use the four M4 x 25 socket head bolts, four M4 washers and four M4 blind nuts to secure the wood box to the firewall. Tighten the screws using a 3mm hex wrench, making sure to draw the barbs of the blind nuts into the back-side of the firewall. Use threadlock on the screws to prevent them from vibrating loose. 7.
4-Stroke Engine Installation Required Parts Fuselage assembly M4 washer (12) M4 lock nut (4) Engine 3. Remove the template from the fuselage. Use a 7/32inch (5.5mm) drill bit to enlarge the holes in the firewall. Engine mount (right and left) M4 blind nut (4) M4 x 30 machine screw (8) 5. Attach the right and left engine mounts to the firewall using four M4 x 30 machine screws, four M4 washers and four M4 blind nuts.
7. Position the engine on the engine mount rails so the face of the drive washer is 511/16 inches (145mm) from the firewall. Use a felt-tipped pen to mark the locations for the engine mounting screws on the engine mount rails. 9. Attach the engine to the engine mount using four M4 x 30 machine screws, four M4 lock nuts and eight M4 washers. Place the washers between the head of the bolts and engine mounting lugs, and between the mount rails and nuts.
3. Attach the clunk to the straight line (carburetor tube) using a piece of fuel tubing. Cut the fuel tubing so the distance between the back of the small disk and the end of the clunk measures 43/4 inches (120mm) as a starting point. 5. Cut three 41/2 inch (114mm) pieces of fuel tubing. Attach the fuel tubing to the tubes on the tank. 7. Place the former in the fuselage with the hole in the former on the right, lined up with the arm on the carburetor.
9. Position the plywood fuel tank retainer so the tabs are inserted into the slots on the tank former. The retainer will keep the tank from sliding rearward in the fuselage. The tabs on the retainer should engage the former. If not, reposition the former as necessary. Once the position of the pieces has been set, use medium CA to glue the former to the fuselage and the retainer to the former. It will be necessary to use a hobby knife with a #11 blade to trim the tab off the rear of the fuel tank.
5. Attach the pushrod connector to the servo arm so it is located 5/8 inch (16mm) from the center of the arm. Make sure the connector can rotate freely. Use a drop of medium CA applied with a toothpick to secure the nut on the bottom of the arm. 7. Use the radio to move the servo to the fully open position. Move the linkage to open the carburetor. Use a 2mm hex wrench to tighten the setscrew, securing the pushrod wire.
3. With the spinner backplate tight against the engine drive washer, position the cowl so there is a 1/16-inch (1.5mm) gap between the cowl and spinner backplate. Make sure the gap is even and that the cowl is aligned with the backplate. 5. Remove the spinner backplate and cowl. Use a drill and 5/32-inch (2mm) drill bit to drill the holes in the cowl mounting blocks for the cowl mounting screws. 4. Use a pencil to mark the locations on the cowl 6.
9. Use silicone adhesive to glue the baffle into the cowling to direct air over the head of the engine. Allow the adhesive to fully cure before proceeding. The top and bottom of the baffle should be aligned parallel with the upper and lower edges of the cowl opening. 10. Attach the muffler to the engine using a 90 degree exhaust adapter. We also added an exhaust diverter to direct the exhaust out of the bottom of the cowl.
15. Mount the spinner and propeller. Use open-end or box wrenches to tighten the propeller nut. Check the fit of the spinner to the propeller,. It may be necessary to trim the opening for the propeller. The propeller must not contact the spinner cone when it is installed. The spinner is held in position using two M3 x 12 self-tapping screws. Tighten the screws using a #1 Phillips screwdriver.
6. Slide the wing into position on the fuselage. Slide the wing tight against the fuselage. Use an M3 x 12 socket head machine screw and M3 washer to secure the wing in position. Use a 2.5mm hex wrench to tighten the screw. Connect the aileron servo extension to the receiver at this time. 8. Place the four remaining 2.6mm x 16mm aluminum pins into the struts. Slide the 370mm aluminum tube into the top wing panel. Slide the tube through the upper center wing rib.
Removing the Wing Panels 12. Locate the wing transport frames and rubber bands. Slide the frames between the top and bottom wing as shown. Use a rubber band to hold the frame to the top and bottom wing. 13. Use a 2.5mm hex wrench to remove the three M3 screws that attach the panels to the fuselage and center section. Slide the panels from the tubes and disconnect the servo lead for the aileron servo.
3. When balancing your model, make sure it is assembled Control Throws and ready for flight. Support the plane inverted at the marks made on the wing with your fingers, or use a commercially 1. Turn on the transmitter and receiver of your model. available balancing stand. This is the correct balance point Check the movement of the rudder using the transmitter. for your model. When the stick is moved to the right, the rudder should also move right.
Preflight Check Your Radio Before going to the field, ensure 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. Prior to each flying session, make sure to range check your radio.
Limitation of Liability HORIZON SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY, REGARDLESS OF WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, TORT, NEGLIGENCE, STRICT LIABILITY OR ANY OTHER THEORY OF LIABILITY, EVEN IF HORIZON HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Further, in no event shall the liability of Horizon exceed the individual price of the Product on which liability is asserted.
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6. With the exception of events flown under official AMA Competition Regulations, excluding takeoff and landing, no powered model may be flown outdoors closer than 25 feet to any individual, except for the pilot and the pilot’s helper(s) located at the flight line. Building and Flying Notes 7. Under no circumstances may a pilot or other person touch a model aircraft in flight while it is still under power, except to divert it from striking an individual.
Building and Flying Notes Hangar 9 Christen Eagle II 90 ARF 35
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