DHC-2 Beaver ARF Assembly Manual Specifications Wingspan: Length: Wing Area: Weight w/ Battery: Weight w/o Battery: 68 in (1735mm) 43 in (1090mm) 565 sq in (36.4 sq dm) 4.9–6.2 lb (2.2–2.8 kg) 4–4.25 oz (1.8–1.
Table of Contents Specifications....................................................................... 1 Introduction.......................................................................... 2 Platinum Series Statement..................................................... 2 Using the Manual................................................................. 2 Contents of Kit/Parts Layout.................................................. 3 Required Radio Equipment...............................................
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 circle () are performed once, while steps with two circles ( ) 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.
Required Radio Equipment You will need a minimum 6-channel transmitter (for proper mixing and dual rate capabilities), crystals, receiver, and six mini servos. You can choose to purchase a complete radio system. If you are using an existing transmitter, just purchase the other required equipment separately. We recommend the crystal-free, interference-free Spektrum™ DX6i 2.4GHz DSM® 6-channel system. If using your own transmitter, we recommend the JR SPORT™ MN48 Mini servos.
Optional Accessories EFLA110 Power Meter EFL4537 Cockpit Kit EFLA151 Pilot Bust EFLA500 25-Size Fiberglass Floats EFLAEC303 EC3 Device & Battery Connector, Male/Female EFLC3005 Celectra 1- to 3-Cell Li-Po Charger EFLC505 Intelligent 1- to 5-Cell Balancing Charger Required Tools and Adhesives Tools & Equipment EFLA250 Park Flyer Tool Assortment, 5-piece Or Purchase Separately EFLA257 Screwdriver, #1 and #2 Phillips (or included with EFLA250) EFLA251 Hex Wrench: 3/32-inch (or included with EFLA250) 6-mi
Notes Regarding Servos and ESC WARNING: Use of servos other than those we recommend may overload the BEC of the recommended Electronic Speed Control (ESC). We suggest the use of only the servos we recommend when utilizing the recommended ESC’s BEC, or the use of a separate BEC (like the UBEC) or receiver battery pack when using other servos. Note on Lithium Polymer Batteries Lithium Polymer batteries are significantly more volatile than alkaline or Ni-Cd/Ni-MH batteries used in RC applications.
Damage Limits HORIZON SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCT, WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. Further, in no event shall the liability of Horizon exceed the individual price of the Product on which liability is asserted.
Non-Warranty Repairs Should 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-warranty repair estimates will be billed a minimum of ½ hour of labor.
Landing Gear Installation Required Parts Fuselage Landing gear (right and left) 6-32 x 3/8-inch socket head screw (4) #6 washer (4) Required Tools and Adhesives Ball driver: 7/64-inch 2. Secure the left half of the landing gear using two 6-32 x 3/8-inch socket head screws and two #6 washers. Use a 7/64-inch ball driver to tighten the screws. Threadlock Note: If you will be installing floats on your DHC-2 Beaver, you can skip to the next section to install the motor and battery. 1.
3. Secure the right half of the landing gear using two 6-32 x 3/8-inch socket head screws and two #6 washers.
1. Attach the X-Mount to the motor using the screws provided with the motor and a #2 Phillips screwdriver. Make sure to use threadlock on all four screws so they do not vibrate loose. 2a. Attach the Power 32 motor to the firewall using four 4-40 x 1-inch socket head screws, four #4 washers, four aluminum motor spacers. Tighten the screws using a 3/32-inch ball driver. Make sure to use threadlock on the four screws to prevent them from vibrating loose. E-flite DHC-2 Beaver ARF Assembly Manual 2b.
3. Use hook and loop tape to mount the speed control to the front of the battery box as shown. You will need to attach a 9-inch extension onto the ESC plug to route it to the receiver. 4. Plug the leads together between the motor and speed control. Secure the wires so they will not interfere with the operation of the motor. in the center of the dummy radial engine. Use a hobby knife to remove the area between each of the cylinders to allow cooling air to pass through the cowling and over the motor.
6. Attach the cowl to the fuselage using four 4-40 x 3/8-inch socket head screws and four #4 washers. Note the direction of the cowl as shown in the photo. Use a 3/32-inch ball driver to tighten the screws that secure the cowling. Use threadlock to ensure the screws do not come loose during flight. 7. Insert the propeller adapter into the spinner backplate. It may be necessary to enlarge to hole in the backplate to accept the adapter. 8.
9. Secure the spinner cone to the backplate with the screws provided with the spinner. Use a #1 Phillips screwdriver to tighten the two screws. 10. Carefully remove the hatch from the bottom of the fuselage. It is held at the rear with two magnets. To open the hatch, insert your thumb and index finger into the cups and pinch towards the middle of the hatch. Then lift towards one side to release one magnet and then pull up and away from the model to release the second model.
11. Install the battery in the fuselage using the two velcro straps. The battery can be moved forward or rearward to correct for the Center of Gravity if necessary. You may also wish to use some hook and loop tape on the tray to secure the battery from sliding fore or aft. E-flite DHC-2 Beaver ARF Assembly Manual 12. You may elect to cut a hole for exit air in the aft area of your fuselage.
Aileron and Flap Servo Installation Required Parts Wing panel (right and left) Aileron servo cover (right and left) Servo mounting blocks (8) Nylon clevis (4) Clevis retainer (4) Pushrod connector (4) Flap servo cover (2) 2 1/2-inch (58mm) pushrod (2) 2 3/16-inch (56mm) pushrod (2) Servo extension, 3-inch (76mm) (2) Servo extension, 12-inch (305mm) (2) #2 x 3/8-inch sheet metal screw (16) mmm 2. Use 6-minute epoxy to glue the servo mounting block to the servo cover as shown.
mmm 3. Position the servo between the servo mounting block. Use a pencil to mark the locations for the servo mounting screws on the blocks. The servo should not touch the cover to prevent it from absorbing vibrations from the airframe. You may have to notch the servo block to allow access for the servo wire. mmm 5. Apply a few drops of thin CA to each of the holes drilled in the previous step to harden the surrounding wood. mmm 4. Use a drill and 1/16-inch (1.
mmm 6. Use a #1 Phillips screwdriver to install the screws provided with the servos to attach the servo to the servo mounting blocks. m 7. Remove any of the unnecessary arms from the servo horn using side cutters. Enlarge the outer hole of the servo arm with a pin drill and 5/64-inch (2mm) drill bit. m 8. Secure a 9-inch (228mm) servo extension to the aileron servo. Use string or a commercially available connector to keep them from unplugging inside the wing accidentally.
m 9. Tie the string to the servo extension and pull it to the opening for the flap servo at this time. m 10. Secure the aileron servo cover to the wing using four #2 x 3/8-inch sheet metal screws and a #1 Phillips screwdriver. m 11. Slide the bend of the 2 3/16-inch (56mm) pushrod into the hole of the aileron servo. Secure the pushrod using the pushrod connector.
m 12. Slide a clevis retainer onto a nylon clevis. With the aileron servo centered using the radio, thread the clevis onto the pushrod. Connect the clevis to the aileron control horn. Adjust the length of the pushrod by threading the clevis in or out until the aileron is centered. 14. Prepare the flap servos for installation by removing any unnecessary arms from the servo horns as shown.
m 15. Using a ruler, mark the servo cover as shown using a pencil. m 17. Secure a 3-inch (76mm) extension to the flap servo lead. Tie the string to the flap servo extension and pull both the aileron and flap leads to the hole in the bottom of the wing. Use tape to keep the leads from falling back into the wing. m 16. Repeat Steps 1 through 6 to attach the flap servo to the servo cover. Align the servo arm on the intersection of the lines drawn in the previous step.
m 18. Slide the bend of the 2 1/2-inch (58mm) pushrod into the hole of the flap servo. Secure the pushrod using the pushrod connector. Slide a clevis retainer onto a nylon clevis. Thread the clevis onto the pushrod. 22 m 19. Position the flap servo partially in the wing. Connect the clevis to the flap control horn. Plug the flap servo into the receiver and power up the radio system.
Note: Do not place or secure the flap servo cover in position before turning on the radio and checking the operation of the flap. Doing so could damage the flap control horn or quite possibly the flap servo. Check the length of the linkage as follows BEFORE installing the flap servo cover. m 21. Secure the flap servo cover to the wing using four #2 x 3/8-inch sheet metal screws and a #1 Phillips screwdriver. m 20.
Joining the Wing Panels 2. Slide the wing joiner into the wing panel. Use a pencil to mark the joiner against the wing. The joiner should fit snug in the wing. If it does not fit, lightly sand the joiner until it does fit nicely. 3. Slide the joiner into the opposite wing panel. It should slide in to slightly hide the line drawn in the previous step. If not, lightly sand the ends of the joiner until it fits equally into both wing panels.
Note: The following steps will be performed while you have epoxy mixed. Make sure the steps can be performed before the epoxy begins to cure. It is suggested to make a test run of the steps if you are unsure of the procedure. 5. Coat the root rib of the wing panel with epoxy. Apply epoxy into the opening for the joiner as well. 6. Slide the joiner into the wing panel. Apply epoxy to the joiner and to the wing as described in Step 5 and slide the two wing panels together. 4.
7. Use low-tack tape to hold the two wing panels tightly together until the epoxy fully cures. 8. Using a trim iron, iron on the piece of white ultra cote to seal the wing joint. Note: You may use rubbing alcohol and paper towels to clean up any epoxy that might have spilt on the wings during this process before the epoxy hardens.
Rudder and Elevator Installation 2. Attach the wing to the fuselage using a flat blade screwdriver and the two nylon wing bolts. 3. Attach the wing struts to the wing and fuselage using two #2 x 3/8-inch sheet metal screws for each wing strut. Use a #1 Phillips screwdriver to tighten the screws. Holes have been pre-drilled for the wing strut screws in both the fuselage and the bottom of the wing.
4. Slide the stabilizer into position. Center the stabilizer as shown in the photo. 6. Check the alignment between the wing and stabilizer. They should be parallel to each other. If not, lightly sand the stabilizer saddle until the wing and stabilizer are in alignment with each other. Parallel A A=A A 5. Using a ruler, measure from each stabilizer tip to the corresponding wing tip. The measurements must be equal. If not, reposition the stabilizer until both measurements are equal. A 7.
8. Use a sharp hobby knife to cut the covering slightly inside the lines drawn. Be very careful not to cut into the underlying wood, as this will weaken the stab and cause it to fail in flight. 9. Slide the stabilizer back into position. After checking the alignment, wick thin CA into the joint between the fuselage and stabilizer on both the top and bottom of the stabilizer.
30 10. Insert the rudder control rod into the fuselage, then slide the fin into the slot in the top of the fuselage. 11. Use a felt-tipped pen to trace the outline of the fuselage onto the fin. Also trace the outline of the dorsal fin onto the top of the fuselage.
12. Use a sharp hobby knife to cut the covering slightly below the lines drawn. Be very careful not to cut into the underlying wood, as this will weaken the fin and cause it to fail in flight. Also trim the covering on the top of the fuselage. E-flite DHC-2 Beaver ARF Assembly Manual 13. Check that the fin is square to the stabilizer. Sanding the bottom of the fin where it fits into the fuselage can correct for any alignment issues.
14. Slide the fin up slightly so the rudder control horn can be installed on the rudder control rod. Use a setscrew and the provided hex wrench to tighten the setscrew on the flat area of the control rod. Note that the tab on the horn faces toward the top of the fuselage when installed. 15. Wick thin CA into the joint between the fuselage and fin. Make sure the fin is glued into the slot in the fuselage, as well as to the top of the fuselage.
Radio Installation Required Parts Fuselage assembly Servo w/hardware (2) Brass pushrod connector Connector backplate Clevis (3) Clevis retainer (3) Pushrod connector (2) 3mm setscrew Hook and loop material Receiver 23 7/8-inch (606mm) pushrod wire 24 7/8-inch (631mm) pushrod wire 25 7/8-inch (658mm) pushrod wire m 2. Remove the two arms (front and rear) from the servo horn using side cutters. Required Tools and Adhesives Pin drill Thin CA Drill bit: 1/16-inch (1.
4. Secure the connector using the connector backplate. Note: If you are installing floats, prepare the rudder control horn as shown. The pushrod and brass connector will be on the same side of the servo horn. 34 5. Repeat Steps 1 and 2 to prepare the elevator servo. m 6. Place the elevator servo into the fuselage with the output facing to the front. Use a pin drill and 1/16-inch (1.5mm) drill bit to drill the holes for the servo mounting screws.
m 7. Place 2–3 drops of thin CA into each of the holes to harden the surrounding wood. This hardens the wood and provides a better bite for the screws. m 8. Install the elevator servo using the screws provided with the servo. E-flite DHC-2 Beaver ARF Assembly Manual 9. Repeat Steps 6 through 8 to install the rudder servo. 10. Slide the 23 7/8-inch (606mm) pushrod wire into the tube inside the fuselage for the rudder pushrod.
m 11. Slide a clevis retainer onto a nylon clevis. Thread the clevis about 14 turns on the rudder pushrod. The exact position will be adjusted later in the manual. m 13. Slide the pushrod into the hole in the servo horn and secure it using a pushrod connector. m 12. Connect the clevis to the rudder control horn. Slide the clevis retainer over the clevis to prevent the clevis from opening and becoming disconnected from the rudder control horn. m 14.
Note: If you are planning on installing floats, skip Steps 16 and 17 as they pertain to the installation of the tail wheel linkage. 15. Repeat Steps 11 through 14 to install the 24 7/8-inch (631mm) elevator pushrod wire. E-flite DHC-2 Beaver ARF Assembly Manual 16. Place a clevis retainer on a nylon clevis and thread the clevis on the remaining pushrod wire. Slide the wire into the pushrod tube inside the fuselage and through the pushrod connector of the rudder servo.
17. After centering the tail wheel, tighten the 3mm setscrew to secure the pushrod. Use this connection to trim the steering of your Beaver on the ground. DO NOT use the radio trim to correct the steering trim. 18. Install the tail cone using the screws that were removed earlier in the manual and a #1 Phillips screwdriver. Note: Your kit will use a 3mm setscrew instead of the machine screw shown in the photo.
19. Use hook and loop tape to secure the receiver inside the fuselage. If you are using a remote receiver, secure it as far away and as far up in the fuselage as possible.
40 2. With the float supports resting on your work surface, use the supplied hex wrench to tighten the four setscrews to secure the braces in position. Keeping the supports aganst the surface will help keep everything in alignment while tightening the setscrews. Only tighten the setscrews hand tight at this point. m 3. Position the strap for the float mount at the corner of the battery tray as shown. It should be as close as possible to the battery hatch, yet not prevent the hatch from opening.
m 4. Attach the float mount to the bottom of the fuselage using two straps, four 3mm x 12mm sheet metal screws and a #2 Phillips screwdriver. 6. Using threadlock, tighten the setscrews for the cross braces on the float mount. Assemble and attach the floats to the float mounts using the instructions provided with your float set. The float with the water rudder installs on the left side of the model. 5. Repeat Steps 3 and 4 for the rear mounting straps.
42 7. Drill a 1/8-inch (3mm) hole in the bottom of the fuselage near the landing gear. Route the float pushrod through the hole and into the fuselage. Use silicone adhesive to glue the pushrod tube to the fuselage. Use thin CA to glue the landing gear plugs to the fuselage at this time as well. You may also opt to use clear tape to install the landing gear plugs in the fuselage if you might change from floats to wheels from time to time. 8. Connect the pushrod cable to the connector.
Windows, Cockpit and Air Scoop Installation Required Parts Fuselage assembly Side window set Air scoop (2) Required Tools and Adhesives Canopy glue Hobby knife Optional tools: Drill Phillips screwdriver: #1 2. Test fit the forward cockpit floor in the fuselage. Trim the floor as necessary using hobby scissors. The cockpit floor is then glued in using medium CA.
44 3. Remove the backing from the adhesive strips on the bottom of the seat backs. Attach the seat backs to the forward cockpit floor. 4. Trim the forward side windows from the window set using hobby scissors and a hobby knife. 5. Use canopy glue to secure the right and left front side windows to the inside of the fuselage. 6. Use medium CA to secure the pilot twins to the forward cockpit floor.
7. Use canopy glue to attach the front windscreen to the fuselage. Scuff the covering and windscreen where they contact each other using fine sandpaper to provide a surface for the adhesive to bond to. E-flite DHC-2 Beaver ARF Assembly Manual 8. Use medium CA to glue the rear cockpit floor blocks to the sides of the fuselage slightly below the level of the center side window. There will be two blocks on each side of the fuselage as shown. 9.
46 10. Secure the rear cockpit floor in the fuselage using four #2 x 3/8-inch sheet metal screws. The screws will go through the rear cockpit floor and into the block installed in Step 8. Route the leads for the flaps and ailerons from underneath the floor at this time. 11. Trim the center and rear side windows from the window set using hobby scissors and a hobby knife. 12. Use canopy glue to secure the remaining side windows to the inside of the fuselage.
13. Use medium CA to glue the air scoops to the fuselage using the images below and those on the box as guides. Control Throws 1. Turn on the transmitter and receiver of your DHC-2 Beaver. Check the movement of the rudder using the transmitter. When the stick is moved right, the rudder should also move right. Reverse the direction of the servo at the transmitter if necessary. 2. Check the movement of the elevator with the radio system.
Ailerons Low Rate: 1/2-inch (13mm) (Up/Down) High Rate: 3/4-inch (19mm) (Up/Down) Elevator Low Rate: 5/8-inch (16mm) (Up/Down) High Rate: 1-inch (25mm) (Up/Down) Range Test Your Radio 1. Please consult your radio instructions for complete range testing instructions. 2. Double-check that all controls (aileron, elevator, rudder and throttle) move in the correct direction. 3. Be sure that your transmitter batteries are fully charged, per the instructions included with your radio.
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 DHC-2 Beaver ARF is 2 1/4– 2 3/4-inch (57–70mm) back from the leading edge of the wing. Mark the location of the CG on the bottom of the wing. Please balance your model upright with the battery installed.
Flying Your DHC-2 Beaver ARF You will find the Beaver to be a very docile model in the air and on the ground. Takeoff's are a piece of cake with the large rudder and flaps. Landings are slow and gentle with the large flap area fully deployed on final approach. Begin by placing the model on the ground. Check all control throws and ensure everything is traveling in the right direction. Move your idle trim up until the prop begins to spin; this will be your flight idle.
2008 Official AMA National Model Aircraft Safety Code GENERAL 1) I will not fly my model aircraft in sanctioned events, air shows or model flying demonstrations until it has been proven to be airworthy by having been previously, successfully flight tested. 2) I will not fly my model higher than approximately 400 feet within 3 miles of an airport without notifying the airport operator. I will give right-of-way and avoid flying in the proximity of full-scale aircraft.
12403.1 © 2008 Horizon Hobby, Inc. 4105 Fieldstone Road Champaign, Illinois 61822 (877) 504-0233 horizonhobby.com E-fliteRC.
