RV-8 Assembly Manual Specifications Wingspan: . ............................................................. 61 in (1549mm) Length: ................................................................... 52 in (1321mm) Wing Area: ..........................................................732 sq in ( sq dm) Weight: . .......................................................... 6.5–7 lb (2.9–3.2 kg) Radio: ................................................... 5-channel with 6–7 servos Engine: ....... .46–.
Table of Contents Contents of Kit and Parts Layout............................................2 Included Hardware..................................................................3 Using the Manual....................................................................4 UltraCote Covering Colors......................................................4 Before Starting Assembly.......................................................4 Radio Systems Requirements.................................................
Included Parts and Hardware Wing Left wing with aileron and flap Right wing with aileron and flap Clevis Pushrod keeper 2mm x 10mm self-tapping screw 19mm x 19mm x 10mm wood block 2mm x 180mm pushrod threaded one end 3mm x 20mm socket head cap screw 3mm flat washer 20mm x 480mm aluminum wing tube 4mm x 270mm aluminum stab tube 4mm x 160mm aluminum stab tube Fuselage 1 1 4 4 16 8 4 2 2 1 1 1 aileron & flaps aileron & flaps ail & flap servo cover hard point for ail & flap servos ailero
Using the Manual This manual is divided into sections to help make assembly easier to understand, and to provide breaks between each major section. In addition, check boxes have been placed next to each step to keep track of each step completed. Steps with a single box () are performed once, while steps with two boxes () indicate that the step will require repeating, such as for a right or left wing panel, two servos, etc. Remember to take your time and follow the directions.
Additional Required Adhesives 30-Minute Epoxy Canopy Glue Medium CA Thin CA (HAN8002) (PAAPT56) (PAAPT02) (PAAPT08) FS One With FS One® (HANS2008) you get more than photorealistic fields, gorgeous skies and realistic-looking aircraft. You get incredibly advanced aerodynamic modeling that simulates every possible aspect of real-world flight. The first Hangar Pack® (HANS4010) will add even more aircraft to FS One.
Step 4 Step 5 Step 7 Apply a drop of threadlock on each of the screws before using them to secure the main landing gear to the fuselage. Use a 2.5mm hex wrench to tighten the screws that secure the landing gear to the fuselage. Repeat Steps 3 and 4 to install the remaining landing gear. Slide the wheel pant onto the axle, making sure it is installed in the correct direction as there is a right and left wheel pant. Next, slide the wheel axle nut onto the axle.
Step 8 Step 10 Position the fuselage on a stand so the wheel pant can be positioned parallel to the top of the fuselage line. Remove the wheel pant from the landing gear. Use a drill and Place the wheel pant back on the landing gear as described in 1/8-inch (3mm) drill bit to drill a hole at the location marked Step 6 and 7. Slide a 4mm wheel collar onto the wheel axle, in the previous step. then slide the wheel into position.
Step 14 Step 16 Slide another 4mm wheel collar on the axle. Use a 3mm x Repeat Steps 6 through 15 to install the remaining wheel 3mm setscrew and 1.5mm hex wrench to secure the wheel and wheel pant. collar after making sure the wheel can rotate freely on the axle. Step 13 Apply a drop of threadlock to a 3mm x 3mm setscrew. Slide the wheel collar up against the nut and use the setscrew to secure the position of the wheel collar. Use a 1.5mm hex wrench to tighten the setscrew.
Section 2: Servo and Receiver Installation Required Parts Fuselage Switch harness Receiver battery (glow powered only) Hook and loop strap (not included) Y-harness (2) or 6-inch (152mm) servo extension (4) 12-inch (305mm) servo extension (EP version only) Servo with hardware (2) (3 for glow-powered model) Tools and Adhesives Pencil Thin CA Drill bit: 1/16-inch (1.
Step 5 Step 7 Step 9 Use a hobby knife and #11 blade to remove the covering from the appropriate hole to mount the switch harness. Provisions have been made for either a larger or smaller switch in the side of the fuselage. Connect the receiver battery to the switch harness. Use a hook and loop strap (not included) to secure the receiver battery underneath the forward radio tray. Use 1/4-inch (6mm) foam to insulate the battery from the vibrations from the airframe.
Note: The EP version will require you to mount the main receiver and remote receiver in the locations shown in the photos below to allow for the installation of the motor battery. The receiver is shown with the pins facing up so the majority of the case is supported by the former in the fuselage.
Step 5 Step 7 Repeat Steps 3 and 4 to crimp the opposite end of the cable to the remaining pull-pull fitting. Use the radio system to check the operation of the rudder and elevator servos. It may be necessary to bind the transmitter and receiver if you are using a new receiver. Always select a blank model and reset it to remove any programming or trim settings when using a computer radio before starting the linkage installation.
Step 8 Step 9 Step 11 Slide each of the cables into the tubes inside the fuselage. The cables will exit the fuselage at the rear. You will need to use a hobby knife with #11 blade to remove the covering so the cables can exit. Thread clevis 10-turns on the threaded pull-pull fitting. Use scissors to cut two 1/4-inch (6mm) long pieces from the heat shrink provided and slide it onto the clevis. Prepare two assemblies at this time. Slip the cable through the hole in the fitting.
Section 4: Elevator/Stabilizer Installation Required Parts Fuselage Stabilizer tube (short) Stabilizer tube (long) Heat shrink Clevis (2) Transmitter Wheel collar, 4mm (2) Pushrod keeper 3mm x 3mm setscrew (2) 29-inch (736mm) pushrod wire (2) Stabilizer assembly (right and left) Tools and Adhesives Hobby knife with #11 blade Rubbing alcohol 30-minute epoxy Mixing stick Epoxy brush Phillips screwdriver: #2 Rotary tool with cutoff wheel Drill bit: 5/64-inch (3mm) Threadlock Felt-tipped pen Paper
Hint: Use rubbing alcohol and a paper towel to remove the lines drawn on the fuselage. Important: Read through the next few steps before mixing any epoxy. You must be able to perform these steps before the epoxy begins to cure. Step 7 Step 9 Slide the stabilizer into position. Use low-tack tape to keep the stabilizer tight against the fuselage.
Step 10 Step 12 Step 14 Cut a 1/4-inch (6mm) piece from the heat shrink tubing and slide it over the clevis. Thread the clevis 10-turns on the pushrod wire. Connect the clevis to the center hole of the elevator control horn. Turn on the radio system and center the elevator servo. With the elevator centered, use a felt-tipped pen to mark the pushrod wire where it crosses the servo horn. Trim the wire 3/8-inch (10mm) above the bend using side cutters or a rotary tool.
Step 16 Step 18 Step 20 Slide two 4mm wheel collars on the pushrod wire. Repeat Steps 9 and 10 to install the remaining 29-inch (736mm) pushrod wire. Use a rotary tool and cut off wheel or side cutters to trim the pushrod wire so it almost touches the pushrod keeper. Slide the wheel collars forward. Slide the bent pushrod wire into the wheel collars. Step 21 Use two 3mm x 3mm setscrews and a 1.5mm hex wrench to secure the collars that link the two pushrods together.
Section 5: 2-Stroke Engine Installation Required Parts Fuselage Engine mounting template #8 washer (4) 8-32 blind nut (4) 4-40 locknut (4) #4 washer (4) Engine 4-40 x 1-inch socket head screw (4) Throttle pushrod, 16-inch (406mm) Throttle pushrod tube, 8-inch (203mm) 8-32 x 3/4-inch socket head screw (4) Step 2 Step 3 Use a drill and 1/16-inch (1.5mm) drill bit to drill the appropriate holes for your particular motor.
Step 7 Step 9 Attach the motor mounts to the firewall using four 8-32 x 3/4-inch socket head screws and four 8-32 washers. Use a 9/64-inch hex wrench to lightly tighten the screws. You should be able to move the mounts so their position can be fine-tuned for your particular engine. Apply a drop of threadlock on each of the screws to prevent them from vibrating loose. Use the holes in the engine mount that will position the drive washer of the engine 43/8 inches (111mm) from the firewall as shown.
Section 6: 4-Stroke Engine Installation Required Parts Fuselage Engine mounting template #8 washer (4) 8-32 blind nut (4) 4-40 locknut (4) #4 washer (4) Engine 7/16-inch (11mm) 2-stroke spacer (2) 4-40 x 1-inch socket head screw (4) Throttle pushrod, 16-inch (406mm) Throttle pushrod tube, 8-inch (203mm) 8-32 x 3/4-inch socket head screw (4) Tools and Adhesives Drill Low-tack tape Phillips screwdriver: #1 Ruler Medium grit sandpaper Side cutters Medium CA Threadlock Rotary tool with sanding drum Hex w
Step 7 Step 8 Test fit the engine to the mount. You will need to use a rotary tool and sanding drum to remove a small amount of material from the engine mount to clear the carburetor as shown in the following images. Connect the Z-bend on the 16-inch (406mm) pushrod to the carburetor as shown. Step 6 Use a 9/64-inch hex wrench and one of the 8-32 x 3/4-inch socket head screws and a #8 washer to draw the four 8-32 blind nuts into the backside of the firewall.
Step 11 Step 13 Trim the throttle pushrod tube as close to the firewall as Slide the pushrod into the pushrod tube. Position the possible using side cutters. This is necessary as the throttle arm engine between the mounts, then secure its position using is very close to the firewall when the carburetor is fully closed. four 4-40 x 1-inch socket head screws, four #4 washers and four 4-40 locknuts. Place the washers on the bottom side of the mount between the mount and lock nuts.
Step 2 Step 4 Remove the servo horn from the servo using a #2 Phillips Slide the connector on the pushrod wire then secure the screwdriver. Use side cutters to remove the excess servo arms servo horn to the servo using a #2 Phillips screwdriver and so they will not interfere with the operation of the servo. the screw that was removed in Step 2. Use the radio system to moved the throttle servo to the low throttle position. Step 6 Check the operation of the throttle using the radio system.
Step 8 Step 10 Cut a 1/2-inch (12mm) wide piece of 1/4-inch (6mm) foam and wrap it around the fuel tank as shown. Use medium CA to glue the plywood tank support in position. Make sure the top of the support is flush with the top of the formers or the canopy hatch will not fit back on the fuselage correctly. Step 12 Hint: Using strapping tape around the foam will help when sliding the tank into the fuselage.
Section 8: Electric Motor Installation Step 2 Step 4 Use a drill and 1/16-inch (1.5mm) drill bit to drill the appropriate holes for the motor. Use a hobby knife and #11 blade to remove the plywood from the engine box to allow cooling air to flow into the fuselage for the battery.
Step 6 Step 8 Use a drill and 11/64-inch (4.5mm) drill bit to enlarge the mounting holes in the motor mount plate. Use a 9/64-inch hex wrench or ball driver to tighten the four 8-32 x 3/4-inch socket head screws that attach the motor to the standoffs. Make sure to use threadlock on all the hardware attaching the motor and standoffs. Step 5 Attach the four 15/8-inch (42mm) aluminum motor standoffs to the firewall using four 8-32 x 3/4-inch socket head screws and four #8 washers.
Step 10 The battery is mounted inside the fuselage using hook and loop straps. The position of the battery can be moved forward or aft to adjust the Center of Gravity of your model once it has been completely assembled. Note: If you are using the new Thunder Power Generation 2 batteries or equivalent then the cooling hole is not mandatory, but strongly recommended. Step 13 Use a ruler to measure back 173/4-inches (450mm) back from the point on the fuselage shown in the photo below.
Step 15 Step 17 Use a felt-tipped pen to mark the corners for the opening on the bottom of the fuselage using the template as a guide. The air exit should be easily lifted from the fuselage once the wood has been cut through. Use a sealing iron to seal the covering if you find it loose after cutting the opening. Step 16 Remove the template from the fuselage.
Section 9: Cowling and Spinner Installation Required Parts Fuselage Cowling 3mm washer (4) Fuel tubing Propeller Exhaust diverter (optional) Spinner with hardware (not included) Propeller adapter (EP version) 3mm x 15mm socket head screw (4) Step 2 Step 4 Slide the cowl in position on the fuselage. Use four 3mm x 15mm socket head screws and four 3mm washers to secure the cowling to the fuselage. Use a 2.5mm hex wrench or ball driver to tighten the screws.
Step 6 Thread the nut on the motor shaft. Make sure to tighten the nut that secures the propeller properly. A box wrench is recommended when flying with a glow motor. Step 8 Make any necessary cutouts for the needle valve, muffler and cooling outlet for your glow engine installation. Step 7 Attach the spinner cone (not included) using the hardware provided with the spinner.
Section 10: Canopy and Pilot Installation Required Parts Fuselage Cockpit hatch Canopy Pilot figure (not included) (HAN9161 or HAN9162 recommended) Step 2 You will need to cut the pilot (not included) down roughly 1/4-inch (6mm) to fit inside the cockpit. Use a felt-tipped pen taped to a mixing stick or other item that spaces your pen up 1/4-inch (6mm) from the work surface. Trace around the bottom of the pilot to provide a cutting line.
Step 4 Use 30-minute epoxy to glue the pilot into the cockpit. The pilot should be roughly 31/2 inches to 33/4 inches (89mm to 95mm) back from the front edge of the cockpit opening. Step 5 Use canopy glue to glue the canopy to the canopy hatch. Use low-tack tape to keep the canopy in position on the hatch until the glue fully cures. Section 11: Aileron and Flap Servo Installation Step 2 Use a hobby knife and #11 blade to remove the covering from the cover so the servo horn can exit.
Step 4 Step 6 Step 7 Install the rubber grommets and brass eyelets in the servo according to the instructions provided with your servo or radio instruction manual. Use the radio system to center the aileron servo. After removing the stock servo arm, install the 180 arm that was prepared in the previous step. Note the direction of the arm in relationship to the servo and servo cover.
Step 9 Step 11 Use a drill and 1/16-inch (1.5mm) drill bit to drill the four holes Secure a 6-inch (152mm) servo extension to the aileron on the blocks for the servo mounting screws. Place 2 to 3 drops servo lead. Use string or a commercially available connector of thin CA in each hole to harden the surrounding wood. to keep the connection from unplugging accidentally inside the wing. Step 13 Use the string to pull the aileron servo extension into the opening for the flap servo.
Step 14 Step 16 Step 18 Use a T-pin to poke a hole through the covering in the servo cover to locate the positions for the servo cover screws. Apply 2 to 3 drops of thin CA into each of the holes to harden the surrounding wood. Use low-tack tape to tape the flap and aileron in the center position. This will make installing the linkages easier as the control surfaces won’t be moving while marking the linkage wires. Step 15 Step 17 Use a drill and 1/16-inch (1.
Step 20 Connect the clevis to the middle hole of the aileron control horn. After double-checking that the aileron servo is centered using the radio, use a felt-tipped pen to mark the pushrod where it crosses the center hole of the servo horn. Step 21 Step 22 Step 23 Insert the pushrod wire through the outer hole of the aileron servo horn. Use a pushrod keeper to secure the pushrod to the aileron servo horn. Follow Steps 2 though 22 to install the flap servo.
Important: Make sure the flap servo is in the “UP” position before measuring and marking the flap linkage. Hint: A small piece of blue tape on the flap servo leads will help in identifying the leads when the wing is being installed on the fuselage. Step 24 Repeat Steps 1 through 23 to install the aileron and flap servos in the opposite wing panel.
Step 3 Step 5 Pass the aileron and flap servo leads from the receiver out through the servo lead holes in the fuselage. Wrap a piece of low-tack tape around the flap leads so they can easily be identified when installing the wing panels. Slide the wing tube and wing panel into the wing tube in the fuselage. Plug the leads for the aileron and flap servos together at this time. Step 2 Apply thin Ca to the exposed wood to prevent fuel from soaking into the wood.
Step 9 Use two 3mm x 15mm socket head screws and two 3mm washers to secure the hatch to the fuselage. You will need to use a 2.5mm ball driver or hex wrench to tighten the screws.. Section 13: Center of Gravity An important part of preparing the aircraft for flight is properly balancing the model. Caution: Do not inadvertently skip this step! The recommended Center of Gravity (CG) location for the your model is 31/2-inch (90mm) back, or 25% of the chord, from the leading edge of the wing.
Section 14: Control Throws Step 1 Check the battery voltage on both the transmitter and the receiver battery packs. Do not fly below 4.3V on the transmitter if you are using a Spektrum transmitter that uses 4-cells to power the transmitter. Do not fly below 9.5V on the transmitter if you are using a JR or Spektrum transmitter that uses 8-cells to power the transmitter. Do not fly if the receiver pack is at or below 4.7V. To do so may crash your aircraft.
Section 16: Maintaining Your Model Checking the Control Horns Inspect the control horns to make sure they have not crushed the wood of the control surface. If so, remove the control horn screws to remove the control horn. Place 2–3 The following is a check list that you should follow every time you have completed a flying session with your model. drops of thin CA into each of the screw holes.
Section 18: Daily Flight Checks Section 19: Glossary of Terms Check the battery voltage on both the transmitter and the receiver battery packs. Do not fly below 4.3V on the transmitter if you are using a Spektrum transmitter that uses 4-cells to power the transmitter. Do not fly below 9.5V on the transmitter if you are using a JR or Spektrum transmitter that uses 8-cells to power the transmitter. Do not fly if the receiver pack is at or below 4.7V. To do so may crash your aircraft.
Section 20: Safety, Precautions and Warnings As the user of this product, you are solely responsible for operating it in a manner that does not endanger yourself and others or result in damage to the product or the property of others. Carefully follow the directions and warnings for this and any optional support equipment (chargers, rechargeable battery packs, etc.) that you use. This model is controlled by a radio signal that is subject to interference from many sources outside your control.
Questions, Assistance, and Repairs Non-Warranty Repairs United Kingdom: Your local hobby store and/or place of purchase cannot provide warranty support or repair. Once assembly, setup or use of the Product has been started, you must contact Horizon directly. This will enable Horizon to better answer your questions and service you in the event that you may need any assistance. For questions or assistance, please direct your email to productsupport@horizonhobby.com, or call 877.504.
Instructions for Disposal of WEEE by Users in the European Union Building Notes Flying Notes This product must not be disposed of with other waste. Instead, it is the user’s responsibility to dispose of their waste equipment by handing it over to a designated collection point for the recycling of waste electrical and electronic equipment.
2009 Official Academy of Model Aeronautics Safety Code GENERAL 1. A model aircraft shall be defined as a non-humancarrying device capable of sustained flight in the atmosphere. It shall not exceed limitations established in this code and is intended to be used exclusively for recreational or competition activity. 2. The maximum takeoff weight of a model aircraft, including fuel, is 55 pounds, except for those flown under the AMA Experimental Aircraft Rules. 3.
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