Dear Customer, ARF Model proudly presents 73in SBACH342 30CC & 120E, Extreme Series, which is a premium product line of electric & gas RC airplanes designed for unlimited 3D performance. The new 73in SBACH342 adopts cutting edge aerodynamic features, such as streamlined canopy, aileron counterbalance, removable side force generators (SFGs) .The 73in SBACH is also loaded with high-end accessories including CF...
FEATURES INCLUDED Newly designed structure Two pieces removable wings PVC canopy Anodized aluminum Long servo arms included Servo extension safety connector clips High performance cap head screws Flat nylon hinges for better flying strength High quality 2.5mm ball links assembly Larger carbon fiber wing tube diameter than V1 Previous versions.
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New dual fiberglass horn assembly New Carbon fiber tail wheel assembly...
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Improved new stainless steel Axles Two options for landing gear: Anodized 6061 Aluminum or Carbon fiber Carbon fiber landing gear Anodized 6061 Aluminum landing gear Canopy hatch pins are made of nylon rods for better resistance aganist vibration ...
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Aluminium Backplate Hollowed-out Electric Spinner included for 120E version (Excellent cooling effect for brushless motor) Including POM & ALU motor washers for 120E version...
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Scheme B : White/Red / blue Scheme C : Yellow /red/black...
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Items Required to Complete This Model: Two switches with charging jacks for the Rx 26-38CC Gas engine Two high quality Rx batteries of significant Appropriate propeller for your Motor capacity to power your choice of servos. ...
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Please verify the accessories before assemble: New Fiber glass servo horns: 8 single horns for ailerons and elevator and rudder. There is a layer of protection film on the horns. Please remove the film as shown following picture. Make sure to sand the horns so the surface is rough to glue correctly. KUZA 3”...
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KUZA new 360cc fuel Tank Assembly for 30CC version (including Aluminum fuel cap) Push rod kits: (Bag No. KA03CB3) Two 2.5x60mm Pushrods for aileron. Two 2.5x130mm Pushrods for elevator.One 2.5x130mm for rudder(Pull-push style) Ball links: 8 for ailerons & elevator & rudder.
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Servo arms: 4 single arms for ailerons and elevator and rudder. 5 Servo extension safety connector clips Main rubber wheels:2PCS...
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New stainless steel Axle kits: 2PCS New Carbon fiber tail wheel assembly. Side force generators (2 x 3x12mm hex bolts & 2 x 3mm stainless steel self-locking nuts & 2 x washers ) Engine mount for 30CC version...
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Screews for landing gear: 4(4x20mm) Hexagon bolts & washers Bolts & washers for cowl: 4(3x14mm) Hexagon bolts and 2(10mm) PTFE washers and 2 wsahers 4 allen key wrenches...
20 POM & ALU washers for 120E motor Gas engine washers for 30CC version: 12(20mm) POM washers Wing Assembly NOTE: There are pictures of different planes in this manual, however, this plane’s wings is assembled the same way. 1. It is much easier to install the twin control horns before installing the wing. Locate the fiberglass aileron control horns, ball links, and associated bolts and nylon-insert lock nuts.
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to roughen up the center areas of the two control horns so that the glue adheres better. Using a sharp hobby knife cut the covering away from the slots in the rudder and trial fit the two control horns. 2. Mix up some 30 minute epoxy and coat the inside of the slots and the center of the control horns. Hint: a scrap piece of 1/16”...
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8. Cut the covering from the aileron servo openings from corner to corner and iron down inside the openings. Connect servo wire extensions to your servos and secure the connections with the supplied clips, your own clips, or tape. Feed the servo wires into the wing and out the root. Install the servos and screw firmly in place.
Elevator Assembly NOTE: Some pictures are of different planes in this manual, however, this plane’s elevator is assembled the same way. 1.Cut the covering over the hole for elevator on the fuselage. Glue the elevator to the fuselage. Making sure it’s centered.
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4.Install the horns the same way as the horns on the aileron. Use your radio to set the servo center position and install the large control horn onto the servo. Assemble the control rod and ball links and adjust the control linkage for proper geometry.
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5.To install the horizontal stabilizers you first need to install two 18” servo wire extensions in the fuselage so that they extend from the radio compartment to the rear openings. 6.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.
Rudder Assembly 1. Install the fiberglass control horns in the same way as you did the elevator horns.
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2.The SBACH is supplied with a high quality set of pull-pull cables and ball-links. 3.Locate the pull-pull cable set, threaded couplers, brass swaging tubes, and ball-links. If the cable is one long piece, cut it into two equal length pieces. Thread one end of the one cable through a brass tube and then through one of the threaded couplers.
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6. 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.
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8.The SBACH also provide pull-push style for rudder. Cut off excess fiberglass rudder horn, and use sandpaper to roughen up the parts needed to inlay. Use epoxy glue to glue the rudder horn. Use 2.5X130mm push rod install rudder sliding systems.
9. We recommend using KUZA 1.5” aluminium CNC servo arm (sold separately) for rudder control. Tail Wheel Installation 1. Begin the tail wheel assembly by installing the hollow hex bolt and lock nut into the large hole at the rear of the tail wheel bracket.
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2. Slide 3 wheel collars and the wheel onto the pre-bent tail wheel wire and tighten in place with thread lock as shown below. 3.Install steering rod, again, the use of thread-lock on any metal to metal screw is advised.
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4.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. Use the three self tapping screws and secure the assembly into place.
6.Fully installed tail wheel assembly is shown below. Main Landing Gear Installation NOTE: There are pictures of different planes in this manual, however, this plane’s landing gear is assembled the same way. 1. Bolt the main gear to the bottom of the fuselage using the supplied screws and washers. Place the bolts in through the can tunnel opening with appropriate size spanner.
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3.Install the wheel axles to the landing gear and tighten the nylon-insert lock nut. Install one wheel collar onto the axle. Use a second wheel collar as a guide to leave a gap on the inboard of the axle. Use a small drop of thread-lock and tighten in place.
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4.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. 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.
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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.
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5. 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.
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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.
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Sites for KUZA fuel dot installation are pre-cut on both sides of the fuselage, you may install it on either side. Use shape knife to remove the covering. 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.
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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.
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120E Electric version Motor Installation Find the washers for motor installation in the 120E version hardware package.There are 8 POM washers,and 16 ALU washers. 2. Blind nuts are pre-installed behind the firewall. Since the position of cowl is fixed and length of motors varies, you may need to use provided washers to position you motor properly.
3. Fix the battery with both Velcro and straps. 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.
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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.
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FINAL RADIO SYSTEM INSTALLATION 1. Whether you 72 MHz systems or the newer 2.4 GHz systems, proper radio installation and care is vital to the safe and reliable operation of your aircraft. Follow the manufacturer’s instruction for installation guidance of receivers and batteries paying attention to factors such as vibration isolation, adequate cooling, and clearances.
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Final Assembly and Pre-Flight Inspections 1. Before arriving at your flying field, be sure all your batteries are properly charged and all radio systems are in working order. 2. 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.
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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. 5. 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.
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* KUZA CNC Aluminum Fuel Dot 3 color to choose: black, blue, red 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 10PCS No.
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* 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...
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For JR servo(23T): 39mm/1.5in Single No. KAG0S72J * KUZA new Wingbag for 73in SBACH Two color to choose: red/ black, blue / silver No. KAG0093...
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