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9

Hangar 9 RV-8 Assembly Manual

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 (1.5mm)  Drill
Foam rubber, 1/4-inch (6mm)  Phillips screwdriver: #1
Hobby knife with #11 blade



 

Step 1

Prepare the rudder and elevator servos by installing the 

rubber grommets and brass eyelets as described in the servo 

or radio manual.



 

Step 2

Use a #1 Phillips screwdriver to thread a servo mounting 

screw into the holes in the radio tray for mounting the 

servos. Apply a drop or two of thin CA into each hole to 

harden the threads made by the screw. This will provide a 

much more secure mounting of the servos than if this step 

were skipped.



 

Step 3

Use a #1 Phillips screwdriver and the screws included with 

the servos to secure them in the servo tray.

 

Step 4

Repeat Steps 1 through 3 to install the throttle servo in the 

forward servo tray.

note

: If you are building the EP version it is not 

necessary to install the throttle servo.

Summary of Contents for RV-8

Page 1: ...gth 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 52 2 stroke 72 82 4 stroke EFL Power 46 EP RV 8 Assembly Manual RV 8 is a trademark of Van s Aircraft and is used with permission ...

Page 2: ... of Gravity 39 Section 14 Control Throws 39 Section 15 Flight Preparations 40 Section 16 Maintaining Your Model 40 Section 17 Safety Do s and Don ts for Pilots 41 Section 18 Daily Flight Checks 41 Section 19 Glossary of Terms 42 Section 20 Safety Precautions and Warnings 42 Section 21 Warranty Information 43 Instructions for Disposal of WEEE by Users in the European Union 44 2009 Official Academy ...

Page 3: ...age 3mm flat washer 6 landing gear to fuselage Fuselage Fuselage with canopy hatch 1 Canopy 1 Fuel tank assembled 1 3mm x 15mm socket head cap screw 6 cowl canopy hatch 3mm flat washer 6 cowl canopy hatch 4 40 x 1 inch socket head cap screw 4 engine to engine mount 4 40 lock nut 4 engine to engine mount 4 flat washer 4 engine mount Small nylon motor mount 2 2 4 stroke engine EP 42mm aluminum stand...

Page 4: ...er 11 x 5 EVO11050 to 11 x 6 EVO11060 2 3 4 inch Spinner DUB290 Hangar 9 Fuel Filler Dot Optional HAN115 Exhaust Diverter DUB697 optional Pilot not included HAN9119 or HAN9120 Recommended Setup 4 Stroke Glow Saito 82 AAC with Muffler SAIE082A or SAIE082AGK Evolution Propeller 13 x 8 EVO13080 or 14 x 6 EVO14060 2 3 4 inch Spinner DUB290 Hangar 9 Fuel Filler Dot Optional HAN115 Exhaust Diverter DUB6...

Page 5: ...ciated with the use of this Product you are advised to return this Product immediately in new and unused condition to the place of purchase Section 1 Landing Gear Installation Required Parts Fuselage Wheel axle 2 Wheel pant right and left Wheel axle nut 2 Wheel collar 4mm 4 3mm x 3mm setscrew 4 3mm washer 6 3mm blind nut 2 Main landing gear right and left 3mm x 10mm Phillips head screw 2 3mm x 12m...

Page 6: ... right and left landing gear They cannot be interchanged or installed incorrectly Step 5 Repeat Steps 3 and 4 to install the remaining landing gear Step 6 Slide the wheel axle through the larger hole in the landing gear Step 7 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 T...

Page 7: ...ked in the previous step Step 11 Use pliers to install the 3mm blind nut on the inside of the wheel pant in the hole just drilled Apply a drop or two of thin CA to the blind nut to secure it in the wheel pant Make sure not to get CA in the threads Step 12 Place the wheel pant back on the landing gear as described in Step 6 and 7 Slide a 4mm wheel collar onto the wheel axle then slide the wheel int...

Page 8: ... the axle Use a 3mm x 3mm setscrew and 1 5mm hex wrench to secure the wheel collar after making sure the wheel can rotate freely on the axle Step 15 Use a 3mm x 10mm Phillips head screw to secure the wheel pant The screw threads into the blind nut installed inside the wheel pant Tighten the screw using a 2 Phillips screwdriver Step 16 Repeat Steps 6 through 15 to install the remaining wheel and wh...

Page 9: ...vator servos by installing the rubber grommets and brass eyelets as described in the servo or radio manual Step 2 Use a 1 Phillips screwdriver to thread a servo mounting screw into the holes in the radio tray for mounting the servos Apply a drop or two of thin CA into each hole to harden the threads made by the screw This will provide a much more secure mounting of the servos than if this step wer...

Page 10: ...luded 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 Step 8 Plug the leads from the switch harness rudder elevator and throttle servos into the appropriate ports of the receiver Also plug extensions or a Y harness in the receiver for both the aileron and flap servos Step 9 Use a hook and loop stra...

Page 11: ...tting 2 Tools and Adhesives Phillips screwdriver 2 Crimping tool Hobby knife with 11 blade Side cutters Scissors Pliers Pin drill Drill bit 5 64 inch 2mm Step 1 Use a 2 Phillips screwdriver to remove the servo horns from the rudder and elevator servos Step 2 Use a pin drill and 5 64 inch 2mm drill bit to enlarge the holes that are 9 16 inch 15mm from the center of a 180 degree servo arm as shown I...

Page 12: ...the remaining pull pull fitting Step 6 While holding the servo arm pull the cable so you can find the center Use side cutters to cut the cable in two equal pieces Step 7 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 programm...

Page 13: ...nect the clevises to the center hole of the rudder control horns Step 11 Slip the cable through the hole in the fitting With the radio system on center the rudder servo With the rudder centered pull the cable so it has a light amount of tension Make a slight bend in the cable as shown This will help when installing the crimp in the next steps Step 12 Remove the cable then slide it through the crim...

Page 14: ...mm Pin drill Threadlock Hex wrench 1 5mm Step 1 Use a hobby knife and 11 blade to remove the covering for the two stabilizer tubes in the fuselage on both sides of the fuselage Step 2 Slide the long and short stabilizer tubes into the stabilizer half Note the longer tube is in the hole toward the leading edge of the stabilizer front and the shorter tube toward the elevator rear Step 3 Slide the tu...

Page 15: ...ge Caution Make sure to keep the stabilizer perpendicular to the vertical fin when applying the tape It is possible to have too much tension on the top or bottom and pull the stabilizer out of alignment Step 8 Repeat Steps 6 and 7 to install the remaining stabilizer half before the epoxy begins to cure Hint Use rubbing alcohol and a paper towel to remove any excess epoxy from the stabilizer and fu...

Page 16: ...m Secure the arm on the servo using the screw that was removed previously Use a 2 Phillips screwdriver to tighten the screw Step 12 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 Step 13 Use pliers to bend the pushrod wire 90 degrees at the mark made in the previous step Step 14 Trim t...

Page 17: ...he elevator pushrod so it can be secured to the first pushrod Make sure that the bend nearest the pushrod tube is far enough forward that it will not hit the pushrod tube when operating the elevator Step 20 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 c...

Page 18: ...ep 2 Use a drill and 1 16 inch 1 5mm drill bit to drill the appropriate holes for your particular motor The throttle pushrod locations are also located on the template for both Saito and Evolution engines Hint Use a 1 Phillips screwdriver or center punch to make an indentation in the firewall so the drill bit does not wander when drilling the holes Step 3 Use a drill and 7 32 inch 5 5mm drill bit ...

Page 19: ...can be fine tuned for your particular engine Apply a drop of threadlock on each of the screws to prevent them from vibrating loose Step 8 Connect the Z bend on the 16 inch 406mm pushrod to the carburetor as shown Step 9 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 Tighten the screws that attach the mount to the fir...

Page 20: ... the firewall as shown Step 2 Use a drill and 1 16 inch 1 5mm drill bit to drill the appropriate holes for your particular motor The throttle pushrod locations are also located on the template for both Saito and Evolution engines Hint Use a Phillips screwdriver or center punch to make an indentation in the firewall so the drill bit does not wander when drilling the holes Step 3 Use a drill and 7 3...

Page 21: ...engine mount to clear the carburetor as shown in the following images Step 8 Connect the Z bend on the 16 inch 406mm pushrod to the carburetor as shown Note When connecting the pushrod to the four stroke make note the direction of the carburetor It it does not match to that in the photo follow the instructions provided with the engine to rotate the carburetor 180 degrees Step 9 Attach the motor mo...

Page 22: ... 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 Use a 1 4 inch nut driver or box wrench to hold the locknuts while tightening the socket head screws with a 3 32 inch hex wrench or ball driver Section 7 Fuel Tank Installation and Throttle Linkage Connection Required Parts Fuselage Pushrod ...

Page 23: ...r to use threadlock on the setscrew to prevent it from vibrating loose Step 6 Check the operation of the throttle using the radio system You should be able to move from closed to open using the radio without any binding If there isn t enough throw move the connection of the pushrod at the carburetor to the center of the carburetor arm If there is too much throw move the connection at the carbureto...

Page 24: ...nstalling the tank Place a piece of foam at the rear of the tank so it will not slide rearward in the fuselage Step 10 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 11 Follow the instructions provided with your engine to install the muffler Step 12...

Page 25: ... tack tape Hex wrench or ball driver 9 64 inch Nut driver or box wrench 1 4 inch Drill bit 1 16 inch 1 5mm 11 64 inch 4 5mm Step 1 Cut the engine mounting template from Page 47 of the manual or use the supplied plywood template Use low tack tape to attach it to the front of the firewall as shown Step 2 Use a drill and 1 16 inch 1 5mm drill bit to drill the appropriate holes for the motor Step 3 Us...

Page 26: ...te if the drill bit catches on the aluminum during the drilling process Step 7 Use a 2 Phillips screwdriver to attach the mount to the motor using the hardware included with the motor Make sure to use threadlock on the screws to prevent them from vibrating loose Step 8 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 stan...

Page 27: ... Step 11 Use a hobby knife with a 11 blade and ruler to cut the air cooling template from Page 47 of this manual Step 12 Carefully fold the template along the fold lines This will assist in positioning the template on the bottom of the fuselage 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 14 Position the template so the fr...

Page 28: ...selage Use a hobby knife and 11 blade to cut through the wood on the bottom of the fuselage using the marks on the bottom of the fuselage as a guide Work slowly to not let the knife slip and cut more than necessary Step 17 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 ...

Page 29: ...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 Hint Cut a small 1 4 inch 6mm piece of fuel tubing and slide it on the screw after the washer This will help keep the cowl screws from vibrating loose Step 3 Slide the propeller adapter on the motor shaft if you ar...

Page 30: ...ut that secures the propeller properly A box wrench is recommended when flying with a glow motor Step 7 Attach the spinner cone not included using the hardware provided with the spinner Step 8 Make any necessary cutouts for the needle valve muffler and cooling outlet for your glow engine installation ...

Page 31: ...atch the one shown in the photo Use medium grit sandpaper to clean up and rough edges left after cutting 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 3 Use...

Page 32: ...extension 6 inch 152mm 2 Tools and Adhesives Hobby knife with 11 blade Side cutter Ruler Pencil Medium grit sandpaper Drill Pin drill 30 minute epoxy Mixing cup Mixing stick Epoxy brush Thin CA Phillips screwdriver 1 String T pin Low tack tape Scissors Ruler Rotary tool with cutoff wheel Clamps Drill bit 1 16 inch 1 5mm 5 64 inch 2mm Step 1 Remove the servo cover for the aileron from the wing pane...

Page 33: ...rvo on the cover Step 6 Use medium grit sandpaper to roughen the end grain of the servo mounting block where it will fit against the servo cover This will improve surface for the epoxy to bond to in the following step Make sure to sand the end grain of the blocks Sand this end Step 7 Use 30 minute epoxy to glue the blocks to the servo cover at the marks made earlier Use clamps or tape to keep the ...

Page 34: ...rvo lead Use string or a commercially available connector to keep the connection from unplugging accidentally inside the wing Note The flap servos will not require the installation of the servo extension Skip Step 11 when preparing the flap servos Step 12 Remove the tape that secures the string inside the opening for the aileron servo Tie the string around the end of the extension Remove the cover...

Page 35: ...surrounding wood Step 17 Use four 2mm x 10mm sheet metal screws and a 1 Phillips screwdriver to secure the servo cover to the wing Step 18 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 19 Prepare one of the 7 inch 178mm pushrod wires by cutting a 1 4 in...

Page 36: ...ous step Use a rotary tool and cutoff wheel to trim the pushrod wire 3 8 inch 10mm from the bend as shown Step 22 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 Step 23 Follow Steps 2 though 22 to install the flap servo The flap servo will not require an extension as described in Step 12 In addition when...

Page 37: ...g and Canopy Hatch installation Required Parts Wing panel right and left Fuselage assembly Aluminum wing tube Canopy hatch assembly 3mm washer 2 3mm washer 4 3mm x 15mm socket head screw 2 3mm x 20mm socket head screw 2 Tools and Adhesives Hex wrench or ball driver 2 5mm Hobby knife with 11 blade Step 1 Use a hobby knife with a 11 blade to remove the covering on both sides of the fuselage to acces...

Page 38: ...ing tube into one of the wing panels The tube should slide in easily and not require any force to insert Step 5 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 6 Slide the wing panel tight against the fuselage Make sure the servo leads are inside the wing or fuselage and not keeping the wing panel from ...

Page 39: ... 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 Mark the location for the Center of Gravity on the top of the wing next to the fuselage as shown When balancing your model support the plane inverted at the marks made on the top of the wing with your fingers or a commercially available balanc...

Page 40: ...r rates to match your preferred style of flying Note Travel Adjust Sub Trim and Dual Rates are not listed and should be adjusted according to each individual model and preference Once all control throws are set shrink the tubing at all the clevises to keep them from opening up during flight Use caution not to damage the covering around the control horn by applying too much heat Section 15 Flight P...

Page 41: ... 5mm hex wrench to tighten the setscrews It is suggested if they loosen frequently to remove them apply threadlock to the setscrews then secure the wheel collars back into position The threadlock and hex wrench are included in the kit for this purpose Check the Muffler Bolts Use a 2 5mm hex wrench Evolution 2 stroke or box wrench Saito 4 stroke to make sure the hardware holding the muffler onto th...

Page 42: ...re aerodynamic stability Some sailplanes and trainer planes with large dihedral dispense with ailerons and use only the rudder to control the roll and yaw Elevator The hinged control surface on the back of the stabilizer that moves to control the airplane s pitch axis Pulling the transmitter s control stick toward the bottom of the transmitter moves the elevator upward and the airplane begins to c...

Page 43: ...ODUCT THE PURCHASER ACKNOWLEDGES THAT THEY ALONE HAVE DETERMINED THAT THE PRODUCT WILL SUITABLY MEET THE REQUIREMENTS OF THE PURCHASER S INTENDED USE c Purchaser Remedy Horizon s sole obligation hereunder shall be that Horizon will at its option i repair or ii replace any Product determined by Horizon to be defective In the event of a defect these are the Purchaser s exclusive remedies Horizon res...

Page 44: ... your repair not be covered by warranty the repair will be completed and payment will be required without notification or estimate of the expense unless the expense exceeds 50 of the retail purchase cost By submitting the item for repair you are agreeing to payment of the repair without notification Repair estimates are available upon request You must include this request with your repair Non warr...

Page 45: ...cycling of waste electrical and electronic equipment The separate collection and recycling of your waste equipment at the time of disposal will help to conserve natural resources and ensure that it is recycled in a manner that protects human health and the environment For more information about where you can drop off your waste equipment for recycling please contact your local city office your hou...

Page 46: ...red by rule helmets must be properly worn and fastened They must be OSHA DOT ANSI SNELL or NOCSAE approved or comply with comparable standards RADIO CONTROL 1 All model flying shall be conducted in a manner to avoid over flight of unprotected people 2 I will have completed a successful radio equipment ground range check before the first flight of a new or repaired model aircraft 3 I will not fly m...

Page 47: ...47 Hangar 9 RV 8 Assembly Manual Saito Evolution Power 46 Saito Evolution Cut Cut Fold Fold Engine Mounting Template Air Exit Template EP ...

Page 48: ...14371 2009 Horizon Hobby Inc 4105 Fieldstone Road Champaign Illinois 61822 877 504 0233 horizonhobby com Hangar9 com ...

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