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CORVUS 70E V2 Instruction Manual

Corvus racer 70e v2 aerobatic rc airplane
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ARF® MODEL
Corvus Racer 70 Electric V2
Instruction Manual

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Summary of Contents for CORVUS 70E V2

  • Page 1 ARF® MODEL Corvus Racer 70 Electric V2 Instruction Manual...
  • Page 2 Thanks for purchasing this newly designed CORVUS 70E V2 aerobatic RC airplane. With an approximate flying weight of 5.5 Lbs., the new Corvus was designed for IMAC and free style flying. It was developed with unique appearance and extreme flight performance in mind. The new Corvus 70E...
  • Page 3 ARF® MODEL By the act of using the final assembled model, the purchaser/operator accepts all resulting liability ARF MODELS WARRANTY AND RETURN POLICY We guarantee that the plane is in perfect condition at purchase. The warranty will be voided after modifications and usages.
  • Page 4 ARF® MODEL • Larger ailerons and elevator designed for extreme 3D aerobatic flying • Air exit opeing for cooling • Side Force Generator’s (SFG) Included • Canopy extended into cowl for easier battery access...
  • Page 5 ARF® MODEL • Quick release canopy latch • Light weight C.F. tail wheel assembly • High-quality durable rubber wheels • Improved new wheel axle (stainless steel)
  • Page 6 ARF® MODEL • Landing gear options : anodized 6061 Aluminum or carbon fiber *Carbon fiber *Anodized 6061 aluminum • Honeycomb Board carton packing for safer transportation...
  • Page 7 ARF® MODEL Scheme A: white/yellow/black...
  • Page 8 ARF® MODEL Scheme B:red /white/ / black...
  • Page 9 ARF® MODEL Items Required to Complete This Model • 1000-1200 Watt, 300g class electric motor • 70-100A ESC • 4 or 5 mini size high torque servos (Hitec HS5245 or HS 7245) *1 or 2 servos for elevators • Appropriate servo arms •...
  • Page 10 ARF® MODEL and other covering. Be careful not to apply too much heat or you may cause bubbles or damage to the covering. A heat gun may also be used along with a soft cotton cloth to shrink and adhere the covering.
  • Page 11 ARF® MODEL • Pull-pull hardware set for rudder • Ball links: 8 for aileron and elevator • 4 Servo extension safety connector clips...
  • Page 12 ARF® MODEL • Main rubber wheels：2 Pcs • Stainless steel Axle kits: 2 Pcs • Tail wheel assembly • Side force generators (mounted with four 3x12mm Hexagon bolts & 2 Washers)
  • Page 13 ARF® MODEL • 4 (3x16mm) hex-head bolts for landing gear mounting • Screws for cowl: 4(3x12mm) tapping screws • Motor mounting hardware set • 3 Hex keys...

  • Page 14: Wing Assembly

    ARF® MODEL Construction 1. Wing Assembly 1.1 Locate two wing panels with ailerons, and two set of control horns and base plates. 1.2 Locate the slot for control horn on aileron, remove the covering over the slot with heated soldering iron or sharp hobby knife, and make sure you do it on the bottom side of the aileron. Insert control horn into base plate then into the slot, trace the edge of base plate with hobby knife then remove the underlying covering.
  • Page 15 ARF® MODEL 1.5 The slots for CA hinges are pre-cut. Insert CA hinges half way into the hinge slots on aileron, apply a drop of thin CA to secure the hinges. Then insert all hinges into slots on the wing at once, align aileron with the wing, move the aileron up and down a few times to reach the minimal hinge gap while still allowing full deflection of the aileron.

  • Page 16: Landing Gear Installation

    ARF® MODEL 1.7 Use your radio to set the centers of each servo and then assemble and adjust the length of each control rod. The servo arm should be as close to perpendicular to the control rod as possible while the aileron is at neutral. Double check all screws, bolts and nuts to assure proper installation and operation without binding.Once satisfied, permanently attach the ball links to the servo arms and horns with the supplied screw and nut.
  • Page 17 ARF® MODEL 2.3 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 18 ARF® MODEL 2.4 Bolt the main gear to the bottom of the fuselage using the supplied bolts 3. Elevators Assembly 3.1 Find the control horn slots on bottom side the elevators, use the method described in 1.2-1.4 to install control horns for elevators. Please note that if you are using dual servos, you need to install horns on both elevator halves, if you are using signal servo, install horns on one side only.
  • Page 19 ARF® MODEL 3.3 Glue the CA hinge for the elevator the same way as the main wings 3.4 There is an option to use one servo or two servos for the elevator. If using one servo, the twohalves of the elevator need to be connected by the included fiberglass bar with glue as shown below.
  • Page 20 ARF® MODEL 3.6 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. When satisfied, screw the ball link to the servo arm and control horn. The servo arm should be as close to perpendicular to the control rod as possible while the elevator is at neutral.
  • Page 21 ARF® MODEL 4.4 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. Run the cable back through the brass tube and then loop it back through a second time.

  • Page 22: Tail Wheel Installation

    ARF® MODEL 4.6 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 23: Motor Mounting

    ARF® MODEL 5.2 Tail wheel kit is pre-assembled in factory, for safety, please remove all screws and then re- assemble with thread locker. 5.3 Drill 2 mm holes on the bottom rear of the fuselage, secure the tailwheel bracket with the provided screws.

  • Page 24: Cowl Installation

    ARF® MODEL 6.2 Drill holes on firewall with 5 mm drill bit, install blind nuts behind the firewall. 6.3 Since the position of cowl is fixed and length of motors vary, you may need to use provided washers and wood crosses to position you motor properly. 7.
  • Page 25 ARF® MODEL 7.2 Drill 2mm holes on cowl and fuselage. 7.3 Enlarge the holes on cowl with 3mm drill bit. 7.4 Secure the cowl with 3X12mm self-threading screws. 8. Final Radio System Installlation 8.1 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.
  • Page 26 ARF® MODEL 8.3 The fuselage ply sides provide space to mount your switches just below the canopy. Mount your switches according to the manufacturer’s instructions and route your wires safely and securely as above. 8.4 Your receiver battery(s) can be mounted in a variety of locations depending on your balance needs.
  • Page 27 ARF® MODEL 10.1 Before arriving at your flying field, be sure all your batteries are properly charged and all radio systems are in proper working order. 10.2 Install the wings onto the fuselage being careful to align the wing tube with the wings and not force it.
  • Page 28 ARF® MODEL 10.5 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. Check all control rods, ball links, servo screws, etc. for proper operation and installation. 10.6 Check your batteries and perform a proper range check once again with the engine off and running.
  • Page 29 ARF® MODEL *2 -1/4in CF spinner (Not Included)

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Arf racer 70 electric v2