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Goldwing RC Corvus Racer 540 120CC Manual

Giant scale aerobatic aircraft
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GoldWing RC
Corvus Racer 540 120CC
Giant Scale Aerobatic Aircraft

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Summary of Contents for Goldwing RC Corvus Racer 540 120CC

  • Page 1 GoldWing RC Corvus Racer 540 120CC Giant Scale Aerobatic Aircraft...

  • Page 2: Specifications

    The latest Goldwing RC Corvus 120cc aircraft was designed in conjunction with EG AIRCRAFT. EG Aircraft will exclusively sell in the USA while Goldwing RC will be available for the rest of the world. Specifications of the aircraft are identical between the brands.
  • Page 3 for the popular 100-130 cc engines and weighs approximately 12 to 12.7Kg. Perfect for IMAC or Freestyle, this new giant offers everything you want in a giant scale aerobat including great looks! Covered in genuine Ultracote, this ARF comes with premium hardware, C.F landing gear, carbon fiber wing and dual stab tubes, carbon fiber reinforced wing and fuselage spars, carbon fiber horns and pre-hinged elevators and ailerons.
  • Page 4 AMA information package call 1-800-435-9262, ext. 292 or visit the AMA website at "www.modelaircraft.org". By the act of using the final assembled model, the purchaser/operator accepts all resulting liability.

  • Page 5: Included Features

    This does not cover any parts damaged by use, misuse or modification. In no case shall liability exceed the original cost of this kit. Because GoldWing RC has no control over the final assembly or equipment/components used in the final assembly, no liability shall be assumed for any damage resulting from the use of this model by the user.
  • Page 6  Replacement wheel tyres, using the existing wheel hubs.  Flat nylon hinges for inproved flying strength  Pre-hinged control surfaces...
  • Page 7  Extra covering provided for small repairs, genuine Ultracote / Oracover  Removable rudder  Side force generators...
  • Page 8  CNC ALU canopy bolts  X basla batten structure ensures high strength of fuselage  Canopy hatch pins are made of nylon rods for better resistance aganist vibratio...
  • Page 9  The Corvus is designed to directly accommodate KUZA® rudder servo tray  KUZA new 1000cc(34oz) gas Tank with alloy tank cap included.
  • Page 10 Carbon Fiber accessories version：  Extra strength carbon fiber control horns...
  • Page 11  One piece airfoiled carbon fiber landing gear  Carbon fiber tail wheel assembly with CNC machined metal parts, including the aluminium tail wheel hub.
  • Page 12  Increased diameter carbon fiber wing tube over previous versions  Two pcs carbon fiber tubes for stab  Special 4in Painted carbon fiber spinner for Corvus...
  • Page 13 Scheme A : White/yellow/black Scheme B : Red /white/ black...
  • Page 14 Scheme C White /red/ /black...
  • Page 15 Items Required to Complete This Model:  100-130 cc gas engine with stock or aftermarket exhaust systems  Two heavy duty switches with  Appropriate propeller for your charging jacks for the Rx engine  Two high quality Rx batteries ...
  • Page 16 extensions. Your installation though may vary. 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 17: Rudder Installation

    RUDDER INSTALLATION 1. It is much easier to install the twin control horns before installing the rudder. Locate the Carbon Fiber rudder control horns, ball links, and associated bolts and nylon-insert lock nuts. Use some fine sandpaper to roughen up the center areas of the two control horns so that the glue adheres better.
  • Page 18 3. The slots for the supplied flat hinges are pre cut. Locate the flat hinges and dry fit the hinges and rudder 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 rudder deflection.
  • Page 19 We recommend using KUZA 4” aluminium CNC servo arm (sold separately) for rudder control. 9. We recommend using KUZA® rudder servo tray (available separately) for better rudder performance.
  • Page 20 10 ． This CORVUS is designed to directly accommodate KUZA® rudder servo tray, and so will be all other pending Goldwing airplanes that are 120cc or greater. 11．You will need to provide 3X42 mm push rods (4 Pcs) and ball links (8 Pcs), depending on the servo of your choice, 2Pcs KUZA 3.25”...
  • Page 22 13．The CORVUS also provides pull-push style for rudder. Below is picture of pull-push style linkage set. 14. Cut off excess carbon fiber rudder horn, and use sandpaper to rough the parts needed to inlay, and use epoxy glue to glue the horn in place. 15.
  • Page 23 16. We recommend using KUZA 1.75” aluminium CNC servo arm (sold separately) for rudder control.

  • Page 24: Landing Gear Assembly

    LANDING GEAR ASSEMBLY 1. Locate the supplied main and tail wheel landing gear parts and sort them out on your workbench. 2. Bolt the main gear to the bottom of the fuselage using the supplied bolts. Place the bolts in through the can tunnel opening with appropriate size spanner.
  • Page 25 3. Bolt the gear cover plate in place using the single bolt provided and the hole in the center of the gear. 4. Place the Fairings for both the fuselage and wheel pant onto the landing gear. 5. Install the main wheel axles to the composite landing gear and tighten the nylon-insert lock nut.
  • Page 26 5. Fit the wheel pant in place and install using the two supplied bolts. Use thread-lock to secure the bolts in place. Repeat the above steps for the other main gear.
  • Page 28 6. Using silicone attaches the fairings to the fuselage and wheel pant. Use tape to hold them into position and leave for a few hours to ensure that the silicon has set. 7. Begin the tail wheel assembly by installing. Tail wheel assembly with CNC machined metal parts, including the aluminum tail wheel hub The installation is very simple, the factory has installed most of the acces sories, please see the following picture.
  • Page 29 Find the carbon plate screw mounting holes on the fuselage, use a knif e to open the Oracover, then use three screws to attach the carbon plate to the fuselage using thread-lock. Then install the spring, using the self- tapping screws to attach the other end of the spring onto the rudder.
  • Page 30 9. The following is a picture of properly installed tail wheel assembly.
  • Page 31 RUDDER CONTROL INSTALLATION 1. The CORVUS is supplied with a high quality set of pull-pull cables and ball-links. NOTE: There are pictures of other planes in this manual, however, the SBACH is assembled the same way. 2. Install your rudder servo(s) into the precut locations in the fuselage. You will need 3 inch arms on the servo(s).
  • Page 32 5. Thread the couplers about half way into the ball links of the rudder. Hint: remove the ball links from the rudder horn first to make this step easier and then re-install once the couplers are threaded on. Feed the loose end of each cable into the cable slots at the rear of the fuselage and feed them forward towards the servo mount location.
  • Page 33 2. 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. Feed the loose end of one of the cables through a brass tube and then through the threaded coupler.

  • Page 34: Wings Assembly

    Check the operation of the rudder using your radio and make sure there is no binding and the cables are adjusted properly. You may have to tighten the cables after a few flights as they may stretch slightly from the initial installation.
  • Page 35 4. Attach a servo extension lead to your servo and use one of the servo clips to secure the plugs together. Tie the cable to the string in the wing and pull through. 5. Place the servo in the bay and drill holes for the servo screws. Remove the servo and apply thin cyano to the holes.
  • Page 36 6. Usinf the pushrods connect the servo arm to the horn. Remember that the pushrod one end that is reverse threaded.
  • Page 37 Use M3 bolts and nuts to connect the pushrod. Set it so the aileron it level when the arm is at 90 degrees. 7. We recommend using KUZA 1.75” aluminium CNC servo arm (sold separately) for wing control.

  • Page 38: Elevator Assembly

    ELEVATOR ASSEMBLY 1. Find the slots for the control arms in the elevators and remove the covering where the horns are inserted and the area for the plate. 2. Sand the area on the horn that will be glued inside the elevator. 3.
  • Page 39 REPEAT FOR THE OTHER SIDE 4. Place 1.75” arms onto the servo’s you are planning to use for the elevators. 5. Place the servo into the elevator and screw in place. Remember to harden the holes with thin Cyano. 6. Place the servo arm back onto the servo, remembering to centre.
  • Page 40 Use nutlock on the servo arm screw. 7. Fit the pushrod in place remembering one end is reverse threaded. Set it so the arm is centered and the elevator is flat. Choose the holes depending on how much deflection you require. 8.
  • Page 41 ENGINE, EXHAUST, & FUEL SYSTEM INSTALLATION 1. Templates are provided in the kit for both DA and 3W 110 cc engines as well as the DA 120 engine. Select the proper guide for your engine and mark and drill the mounting holes and cut out the center as indicated.
  • Page 42 3. Place the cowling in place on the fuselage and measure the distance from the firewall to about 1/2” in front of the cowling. This figure represents the back of the spinner and will help you determine if you need to space your engine out from the firewall using washers or additional wood.
  • Page 43 should be mounted to the fuselage side wall just behind the cowling. Secure all cable connections neatly and firmly. 6. Assemble the throttle servo mount using the supplied laser cut parts or there is a servo cutout in the bottom of the engine box for 100cc-130cc engines.
  • Page 44 A barb on the bottom of the fuselage can be fitted for the vent. 7. The CORVUS comes with a finished tuned pipe tunnel with installed pipe mounts. The tunnel can be closed off to accept canisters of all sizes, or stock mufflers. Follow the manufacturer’s instructions for your exhaust system paying attention to vibration mounts if required and air flow requirements.
  • Page 45 Installation of KUZA Fuel Dot and Fuel Vent Line Plug （Not included） 1. From June 2015 and on, all Goldwing gas airplanes are made ready for KUZA fuel dot and vent line plug. Available in three colors: black, red and blue. 2.
  • Page 46 3. Installation of KUZA CNC Aluminum Fuel Vent Line Plug Similarly, two sites for vent line plug installation are available at the bottom of the fuselage. Secure KUZA vent line plug with four 2.5 mm self- tapping screws as shown below.

  • Page 47: Cowling Installation

    COWLING INSTALLATION 1. With the engine fitted, tape a piece of card to the bottom of the fuselage that can overlap the cylinder head. Remove the engine and refit the cowl. Then fold over the card to show where the cylinder head would be as below.
  • Page 48  If your exhaust outlet comes out within the cowl area then use the same method.  Depending on the amount of cooling required for your engine a template for louvers in the bottom of the cowl has been provided. Use a dremel tool to remove the material.
  • Page 49 Labels are provided for aligning the drill holes for the cowl. Stick then on without the cowl, mark the hole. Fit the cowl then press back down. The hole will then show the area to drill. Sere below. FINAL RADIO SYSTEM INSTALLATION 1.
  • Page 50 To perform properly without being too pitch sensitive, you must not go too aft on the CG. GoldWing RC recommends an initial CG setting of 150-178mm(6.0-7.0 inches) behind the leading edge of the wing at the root.
  • Page 51 you should install each. The batteries can easily be located pretty much anywhere in the fuselage. For those using a 100cc engine, servo cutouts are provided in the rear of the fuselage for the rudder servos. These options should allow you to balance the model without adding any weight. Note: The best way to check your balance is to trim for level flight at about 1/2 to 3/4 throttle and then roll inverted.
  • Page 52 Final Assembly and Pre-Flight Inspections 1. Before arriving at your flying field, be sure all your batteries are fully charged and all radio systems are in working order. 2. Installation of the rudder The rudder is removable for convenience in transportation, it is connected to fuselage by inserting a 1.8 mm steel rod through the hinge line.
  • Page 53 Hook up the tail wheel spring. 3．Installation of Elevators Connect servo extension wire, secure with safe clips. Attach elevators with 3x12mm Hex-head bolts and washers. Check these after every flight.
  • Page 54 4．Install the wings onto the fuselage being careful to align the wing tube with the wings and not force it. The wing tube may be initially tight but will loosen after some with use. Guide your servo wires into the fuselage openings and connect to the correct aileron channels.
  • Page 55 6. 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. 7. Position the canopy in place and tighten ALU Canopy Bolts. Be sure to use the supplied PTFE washers under the screw heads.
  • Page 56 NOTE: Two spare aluminum hand-twist canopy bolts is included in the spare hardware pack. 8. Check all control surfaces for secure hinges by performed a slight tug on the control surfaces and observing if there is any give in the hinges. Check all control rods, ball links, servo screws, etc.
  • Page 57 * KUZA CNC Aluminum Fuel Dot 3 color to choose: black, blue, red No. KAG0231B or KAG0231U or KAG0231R * KUZA CNC Aluminum Fuel Vent Line Plug 3 color to choose: black, blue, red No. KAG0232B or KAG0232U or KAG0232R...
  • Page 58 * KUZA Fuel line clips 10PCS No. KAG02454 * KUZA 1x servo tray No. KAG0T01 * KUZA Heavy duty 7075 aluminum Servo Arm For Futaba servo（25T）： 47mm/1.75in Single No. KAG0S7F 100mm/4in Dual No. KAG0D723F...
  • Page 59 For Hitec servo（24T）： 47mm/1.75in Single No. KAG0S7H 100mm/4in Dual No. KAG0D73H For JR servo（23T）： 47mm/1.75in Single No. KAG0S73J 100mm/4in Dual No. KAG0D73J * KUZA new Wingbag for 120CC Two color to choose: red/ black, blue / silver No. KAG0093...
  • Page 60 GoldWing RC www.goldwingrc.com...