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Goldwing RC YAK55M 30CC Manual

Giant scale aerobatic aircraft
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GOLDWING RC
YAK55M 30CC
Giant Scale Aerobatic Aircraft

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Summary of Contents for Goldwing RC YAK55M 30CC

  • Page 1 GOLDWING RC YAK55M 30CC Giant Scale Aerobatic Aircraft...

  • Page 2: Specifications

    Version 1.0, Jan 2016 Dear Customer, Thank you for purchasing the new Goldwing RC giant scale aerobatic aircraft. This manual covers the YAK55M 30CC aircraft. The new version YAK55M 30CC adopts cutting edge aerodynamic features, such as streamlined canopy, aileron counterbalance, removable side force generators (SFGs) .The YAK55M is also loaded with high-end accessories including genuine Oracover, CF landing gear, tail wheel assembly and control horns.

  • Page 3: Included Features

    Goldwing RC WARRANTY AND RETURN POLICY GoldWing RC guarantees this product to be free from defects in both material and workmanship at the date of purchase. This does not cover any parts damaged by use, misuse or modification. In no case shall liability exceed the original cost of this kit.
  • Page 4  Side force generators  Canopy hatch pins are made of nylon rods for better resistance aganist vibration Carbon Fiber accessories version：  Extra strength carbon fiber control horns...
  • Page 5  One piece air foiled carbon fiber landing gear  Carbon fiber tail wheel assembly with CNC machined metal parts, including the aluminium tail wheel hub.  Increased diameter carbon fiber wing tube over previous versions White/red/blue Scheme D...
  • Page 6 Yellow/black /red Scheme E...
  • Page 7 Items required to complete this model:  26-38 cc gas engine with stock or aftermarket exhaust system  Switches with charging jacks for the Rx  Appropriate propeller for your engine  Rx batteries of significant capacity to power  All the required engine and exhaust mounting your choice of servos.
  • Page 8 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. Inspect all the parts for any shipping damage and report any issues to as soon as you can.
  • Page 9 Sand the area of the horn that will be glued to help adhesion.  KUZA new 360cc fuel Tank with alloy cap  Push rod kits: Two 2.5x60mm Pushrods for aileron. Two 2.5x110mm Pushrods for elevator.  Ball link assembly (Bag No. KAG00122): 8 for ailerons & elevator & rudder.
  • Page 10  Alu long arm kits: 4 single arms for ailerons and elevator and rudder.  Servo lead safety clips：5 pcs (Bag No. KAG0021)  Alu Main wheels：2pcs（Bag No. KAG0157）...
  • Page 11  New axle kits (Bag No. KA03CH)  Carbon fibre tail wheel assembly with CNC machined metal parts, including the aluminium tail wheel hub. (Bag No. KAGC103)  Extra covering provided for small repairs...
  • Page 12  4 allen key wrench (Bag No. KA03CE)  Side force generators (2 x 3x12mm hex bolts & 2 x 3mm stainless steel self-locking nuts & 2 x washers )  Screews for landing gear: 4(4x20mm) hexagon bolts and 4 washers...

  • Page 13: Rudder Assembly

     Bolts & washers for cowl: 4(3x14mm) Hexagon bolts and 2(10mm) PTFE washers and 2 wsahers  Gas engine washers for 30CC version: 12(20mm) POM washers RUDDER ASSEMBLY NOTE: There are pictures of different planes in this manual, however, this plane’s rudder is assembled the same way.
  • Page 14 to roughen up the center areas of the two control horns so that the glue adheres better. Using a sharp hobby knife or soldering iron remove the covering away from the slots in the rudder and trial fit the two control horns.
  • Page 15 4. The YAK can use either closed loop or a rear push pull servo for the rudder. We recommend that you balance the model assembled before choosing your servo placement. 5. The YAK is supplied with a high quality set of pull-pull cables and ball-links. 6.
  • Page 16 9. 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 17: Landing Gear Assembly

    10. 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 18 3.Loosen out the inner nut, then apply thread lock to the axle. Tighten the nut back in place, allow the thread locker to dry. 4. Install the main wheel axles to the composite landing gear and tighten the nylon-insert lock nut. Install one wheel collar onto the axle.
  • Page 19 5. 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.
  • Page 20 6. The tail wheel installation is very simple, the factory has installed most of the accessories, see the below picture. 7. Line up the caron fiber assembly onto the body of the aircrtaft and use the holes as a drill guide. Use a 2mm drill bit as a pilot hole, then apply thin CA to harden the wood.
  • Page 21 8. Drill another 2mm pilot hole at the end of the rudder and apply thin CA. It needs to be in a position where the spring is tensioned. Use a self tapping screw to secure in place. 9. The below is a picture of correctly installed tail wheel assembly. NOTE: One spare tail wheel spring is included in the spare hardware pack.

  • Page 22: Wings Assembly

    WINGS ASSEMBLY NOTE: There are pictures of different planes in this manual, however, this plane’s wings is assembled the same way. 1. Aileron push rod linkage set. 2. The aileron control surfaces is Pre-hingeds. Locate the slots for the aileron control horn and remove the covering with a sharp knife. Place the horns into position and the cover over the top to work out the area needing to be removed.
  • Page 23 3.Rough the area of the horn that will be glued in place. 4.Using 30 minute epoxy glue the horn and plate into the aileron. 5.Screw holes for servo mounting are pre-drilled by laser in factory, install servo with 4 self threading screws.Fit a metal servo arm centering with your radio.
  • Page 24 7.Using the pushrods connect the servo arm to the horn. Remember that on the pushrod one end is reverse threaded. Use M2.5 screws and nuts to connect the pushrod. Set it so the aileron it level when the arm is at 90 degrees. REPEAT FOR THE OTHER SIDE 8．...

  • Page 25: Elevator Assembly

    ELEVATOR ASSEMBLY NOTE: There are pictures of different planes in this manual, however, this plane’s elevator is assembled the same way. 1. Push rod linkage set for elevator 2. 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.
  • Page 26 3. Sand the area on the horn that will be glued inside the elevator. 4. Using plenty of 30 minute epoxy fit the horn and plate into place. Use a ball joint and bolt to hold the horn in place while drying. REPEAT FOR THE OTHER SIDE 5.
  • Page 27 6. Place long arms onto the servo’s you are planning to use for the elevators.
  • Page 28 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. There is an option to use one servo or two servos for the elevator. If using one servo, the 2 parts of the elevator need to be connected by the fiberglass block with glue as shown below.
  • Page 29 9． We recommend using KUZA 1.5” aluminium CNC servo arm (sold separately) for elevator control. For 30CC version,Engine, Exhaust, & Fuel System Installation Engine Installation NOTE: There are pictures of different planes in this manual, however, this plane’s engine is assembled the same way.
  • Page 30 2. Fit the Cowl and measure the distance from the engine bulkhead to the front of the cowl, add approx 2- 3mm for the back plate and this is the length that your engine should be set. Using the correct length stand offs, mount your engine securely using bolts, washers, and locknuts.
  • Page 31 4. 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 28cc-38cc engines. Mount your throttle servo and complete your linkage setup. A hole will need to be drilled on the firewall to allow the pushrod to connect to the throttle arm on the carb. 6.
  • Page 32 A barb on the bottom of the fuselage can be fitted for the vent. 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.
  • Page 33 Secure the housing of fuel dot with supplied 2.5 mm self-tapping screws, then plug and install the fuel line to complete the setup of fuel dot.
  • Page 34 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. Motor Installation 1．...
  • Page 35 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.

  • Page 36: Cowling Installation

    5， Fix the battery with Velcro. COWLING INSTALLATION NOTE: There are pictures of different planes in this manual, however, this plane’s cowling is assembled the same way. 1. The cowl is secured with four 3 X 14mm bolts and washers.Apply nutlock onto the bolts as the vibration from the gas engine will shake them come loose.
  • Page 37 2. 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 Whether you use 72 MHz systems or the newer 2.4 GHz systems, correct radio installation and care is vital to the safe and reliable operation of your aircraft.
  • Page 38 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 127-137mm(5-5.4 inches) behind the leading edge of the wing at the root. More experienced pilots may want to set the CG further aft for more 3D capability.
  • Page 39 3.Side force generators Assembly. Cut the wing film needed to be install the SFG. To fix the SFG use M3x12 Hex bolts and self-locking nuts and washers. 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.
  • Page 40 6. Check your batteries and perform a range check once again with the engine off and running. Be sure all surfaces are moving in the correct direction and the correct amount for your flying setup. 7. You are now ready for your maiden flight! Good luck and enjoy your new aircraft! If you have any comments or questions about this manual or the aircraft please email service@goldwingrc.com.
  • Page 41 * 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 * KUZA Fuel line clips 10PCS No.
  • Page 42 * KUZA Heavy duty 7075 aluminum Servo Arm For Futaba servo（25T）： 39mm/1.5in Single No. KAG0S72F For Hitec servo（24T）： 39mm/1.5in Single No. KAG0S72H For JR servo（23T）： 39mm/1.5in Single No. KAG0S72J...
  • Page 43 * KUZA new Wingbag for 73in SBACH Two color to choose: red/ black, blue / silver No. KAG0093 GOLDWING RC www.goldwingrc.com...