Habu 32 EDF ARF Assembly Manual
Notice All instructions, warranties and other collateral documents are subject to change at the sole discretion of Horizon Hobby, Inc. For up-to-date product literature, visit http://www.horizonhobby. com and click on the support tab for this product.
Table of Contents Introduction............................................................ 3 Important Information Regarding Warranty Information...................................... 3 Specifications.......................................................... 3 Using the Manual.................................................... 3 Contents of Kit/Parts Layout..................................... 3 Covering Colors...................................................... 4 Hardware/Accessory Sizes................
Covering Colors HANU871 HANU881 HANU77 Deep Red Silver Pearl Charcoal Hardware/Accessory Sizes Main wheel diameter Nose wheel diameter Wing bolt Stabilizer bolt 13/4-inch (44.5mm) 13/4-inch (44.5mm) 8-32 x 1/4-inch 3mm x 15mm Recommended Radio Equipment You will need a minimum 5-channel transmitter, receiver and eight servos. You can choose to purchase a complete radio system. If you are using an existing transmitter, just purchase the other required equipment separately.
Control Horn Installation During the course of building your model we suggest you use a soft base for the building surface. Such things as a foam stand, large piece of bedding foam or a thick bath towel will work well and help protect the model from damage during assembly. This is not shown in the instructions to provide the greatest detail in the photos.
7. Sand a slight angle on the fiberglass control 4. Use 5-minute epoxy to glue the horn for the elevator. This is so the top of the horn control horns into the holes for the flap and aileron. does not distort the covering on the top of the Use a square to make sure the control horn is elevator. Test fit the fiberglass control horn in the perpendicular to the control surface.
Aileron Servo Installation Required Parts Wing panel (right and left) Transmitter Receiver Receiver battery Silicone tubing Metal clevis (4) 2mm nut (4) Servo with hardware (MC35) (2) Servo extension, 3-inch (76mm) (2) Threaded rod, 2mm x 25mm(2) Hardwood block, 13mm x 10mm x 7mm (4) 2mm x 8mm self-tapping screw (8) Required Tools and Adhesives Ruler Phillips screwdriver: #1 Scissors Hobby knife with #11 blade String Pencil Thin CA 5-minute epoxy Mixing cup Mixing stick Drill Drill bit: 5/64-inch (
5. Use a pencil to draw two lines on the cover. The 7. Use 5-minute epoxy to glue the 13mm x 10mm first line is along the bottom of the cover, 3/32-inch x 7mm hardwood block to the servo cover. Make (2.5mm) from the edge. The second line is 7/8sure to glue the 10mm x 7mm end to the surface inch (22mm) from the side of the cover as shown. of the plate. Allow the epoxy to fully cure before This will center the servo horn in the slot when proceeding. using the recommended servos. 6.
11. Position the servo between the two blocks. Leave a small gap between the servo and servo cover so vibrations from the airframe are not transferred directly into the servo. Use a pencil to mark the locations for the four servo mounting screws on the blocks. 13. Apply 2–3 drops of thin CA in each hole drilled. Also saturate the front and rear of the block using thin CA to harden the block. This will help keep the block from splitting when the servo mounting screws are installed. 14.
16. Tie the end of the string around the end of the aileron servo lead. Use the string to pull the aileron servo lead into the flap servo bay. 17. Use four 2mm x 8mm self-tapping screws and a #1 Phillips screwdriver to secure the aileron servo cover to the wing. 18. Use a hobby knife with a #11 blade to trim two 1/4-inch (6mm) pieces from the silicone tubing. 20. Remove the tape holding the flap and aileron in position. Use the radio system to center the aileron servo.
Flap Servo Installation Required Parts Wing panel (right and left) Transmitter Receiver Receiver battery Silicone tubing Metal clevis (4) 2mm nut (4) Servo with hardware (MC35) (2) Threaded rod, 2mm x 25mm (2) Hardwood block, 13mm x 10mm x 7mm (4) 2mm x 8mm self-tapping screw (8) 1. Prepare the flap servo by installing the rubber 3. Use a pencil to draw two lines on the cover.
5. Use 5-minute epoxy to glue the 13mm x 10mm x 7mm hardwood block to the servo cover. Make sure to glue the 10mm x 7mm end to the surface of the plate. Allow the epoxy to fully cure before proceeding. 7. Position the flap servo with the grommets resting on the first mounting block and the servo parallel to the line on the cover. Use a pencil to mark the location for the remaining servo mounting block. 8. Use 5-minute epoxy to glue the remaining block 6.
11. Apply 2–3 drops of thin CA in each hole drilled. Also saturate the front and rear of the block using thin CA to harden the block. This will help keep the block from splitting when the servo mounting screws are installed. 12. Use the screws provided with the servo and a #1 Phillips screwdriver to attach the servo to the mounting blocks. 14. Tie the end of the string around the end of the flap and aileron servo leads.
15. Use four 2mm x 8mm self-tapping screws and a #1 Phillips screwdriver to secure the flap servo cover to the wing. 17. Assemble the flap linkage using the two pieces of tubing from the previous step, two 2mm nuts, two metal clevises and the 2mm x 25mm threaded rod. The length of the rod will be adjusted in the following steps. 16. Use a hobby knife with a #11 blade to trim two 1/4-inch (6mm) pieces from the silicone tubing. 18. Use the radio system to center the flap servo.
21. Repeat steps 3 through 18 to install the remaining flap servo and assemble the flap linkage. Connect the flap linkage to the flap control horn ONLY at this time. Wing Spar Installation 2. Slide the canopy hatch pin rearward and lift the canopy from the fuselage. The canopy is held in place with two pins at the front. Set the canopy aside so it doesn’t get damaged. 3.
4. Locate the carbon wing spar. Use a straight 6. Remove the spar from the spar pocket. Use edge or rest the joiner on a flat surface. The top of medium grit sandpaper to lightly sand the spar the joiner is flat, while the bottom will have a slight where it fits into the wing. Sand both the front and angle as shown in the drawing. This is necessary to back of the spar. conform to the dihedral built into the model. 8.
10. Remove the wing and spar from the fuselage. Apply a thin coat of petroleum jelly to the fuselage around the wing socket. This will keep you from accidentally gluing the wing to the fuselage during the following procedure. 12. Use an epoxy brush to apply epoxy to the front, back, top and bottom of the spar where it fits into the wing. 14. Before the epoxy cures, slide the wing into position against the fuselage. Keep the wing tight against the fuselage until the epoxy fully cures.
Main Landing Gear Installation Fixed Gear Required Parts Wing panel assembly (right and left) Aluminum wheel collar with setscrew, 3.5mm (2) Aluminum wheel spacer, 3.5mm (2) Wheel, 13/4-inch (44.5mm) (2) Wheel axle adapter set (2) Main landing gear strut (right and left) Main fixed landing gear unit (2) 3mm x 14mm countersunk self-tapping screw (8) 2. Place a main landing gear block in the wing. It may distort the covering slightly during its installation.
6. Place 2–3 drops of thin CA in each of the holes. This will harden the threads made by the screws making them more secure when the landing gear block is installed. Always use threadlock on metal-to-metal fasteners to prevent them from vibrating loose. 7. Slide a main gear strut into the main landing gear block. Use the setscrews and a 1.5mm hex wrench to secure the main gear wire in the block.
The end of the axles may have a slight bur on them from the factory. If the wheel is hard to install use a file to remove this bur. Always use threadlock on metal-to-metal fasteners to prevent them from vibrating loose. 12. Slide a 3.5mm aluminum wheel spacer on the axle, then the wheel with adapters. A 3.5mm wheel collar is used to secure the wheel in position by tightening the setscrews onto the axle using a 1.5mm hex wrench.
4. Prepare a 5/64-inch (2mm) drill bit by wrapping a piece of low-tack tape around the drill bit 5/8inch (16mm) from the end of the bit. This will act as a marker so you don’t accidentally drill through the top of the wing. Place the drill bit in a drill. 6. Remove the retract mechanism from the wing. Use a #1 Phillips screwdriver to thread a 3mm x 14mm countersunk self-tapping screw in each hole to cut threads into the landing gear rails. Remove the screws after threading the holes.
9. Secure a 3-inch (76mm) servo extension to the lead on the retract mechanism using string or a commercially available connector. 11. Use the string to pull the lead through the wing and out at the root rib as shown. Remove the string once the lead has been pulled through. 14. Select the correct adapter that fits to the landing gear strut. Insert two adapters in either side of the hub of the wheel. 10. Tie the end of the string around the end of the extension.
16. Use a flat file to make a 1/4-inch (6mm) wide flat area on the gear near the end of the axle strut for the setscrew to rest. This will keep the wheel collar from vibrating loose in flight. 17. Slide a 3.5mm aluminum wheel spacer on the axle, then the wheel with adapters. A 3.5mm wheel collar is used to secure the wheel in position by tightening the setscrews onto the axle using a 1.5mm hex wrench. 18. Check to make sure the axle is flush with the edge of the outer wheel collar.
Optional Main Landing Gear Doors Required Parts Wing assembly (right and left) Transmitter Receiver Receiver battery Landing gear door (2) 2mm x 8mm self-tapping screw (8) Landing gear door block (4) 2. Draw two lines on the door that are 7/8-inch (22mm) and 25/8-inch (65mm) from the top edge of the landing gear door as the center lines for the mounting blocks. 4.
6. Rest the landing gear door block on the gear 8. Use a sanding block and medium grit door, centering it on the lines previously drawn. sandpaper to round the back of the landing gear Use a pencil to transfer the mounting holes from the door block. This will allow the gear to retract landing gear door onto the block. into the wing and help center the gear while it is retracting. 9.
Work slowly when using a sanding drum on the screws. The screws will heat up while sanding, which could melt the landing gear door. 15. Retract the landing gear using the radio system. This will set the correct angle for the landing gear door against the wing. Allow the glue to cure overnight before moving the gear back to the down position. 13. Use side cutters and a rotary tool with a sanding drum to smooth the ends of the screws against the inside of the blocks.
2. Use a #1 Phillips screwdriver to thread a servo mounting screw into the mounting holes for the steering servo. Remove the screw after cutting the threads in the plywood. The opening for the steering servo is the center opening in the forward servo tray. 4. Prepare the steering servo by installing the rubber grommets and brass eyelets as shown in the radio or servo instructions. Center the steering servo using the radio system.
8. Connect the clevis without the tubing to the steering arm of the nose gear assembly. Always use threadlock on metal-to-metal fasteners to prevent them from vibrating loose. Cut a 1/2-inch (13mm) piece of silicone tubing and slide it on a 2.5mm hex wrench. The 3mm screw can then be placed in the tubing and against the hex wrench so it can be easily installed to secure the landing gear. 28 11.
Nose Gear Installation - Retracts 13. Use a flat file to make a 1/4-inch (6mm) wide flat area on the gear near the end of the axle strut for the setscrew to rest. This will keep the wheel collar from vibrating loose in flight. Always use threadlock on metal-to-metal fasteners to prevent them from vibrating loose. 14. Slide a 3.5mm aluminum wheel spacer on the axle, then the wheel with adapters. A 3.
2. Use a #1 Phillips screwdriver to thread a servo mounting screw into the mounting holes for the steering servo. Remove the screw after cutting the threads in the plywood. The opening for the steering servo is the center opening in the forward servo tray. 4. Prepare the steering servo by installing the rubber grommets and brass eyelets as shown in the radio or servo instructions. Center the steering servo using the radio system.
8. Use the radio system to move the nose gear retract to the UP position. Use a 1.5mm hex wrench to loosen the screw on the steering arm and wheel collar to remove the strut from the mechanism. 9. Use a 1.5mm hex wrench to secure the steering arm by tightening the setscrew on the lower flat of the nose gear strut. Make sure the arm is positioned as shown in the photo. 10. Install the supplied nose gear strut in the retract mechanism and tighten the setscrews using a 1.5mm hex wrench.
12. Secure the nose gear assembly in the fuselage using four 3mm x 8mm socket head screws. 14. Attach the nose gear cover to the fuselage using a #1 Phillips screwdriver and the four 2mm x 8mm self-tapping screws removed in step 1. Always use threadlock on metal-to-metal fasteners to prevent them from vibrating loose. 13. Remove the horn from the servo and attach the clevis to the horn. Place the horn on the servo and check that the steering is centered when the steering servo is centered.
17. Slide a 3.5mm aluminum wheel spacer on the axle, then the wheel with adapters. A 3.5mm wheel collar is used to secure the wheel in position by tightening the setscrews onto the axle using a 1.5mm hex wrench.
6. Place 2–3 drops of thin CA in each of the holes. This will harden the threads made by the screws making them more secure when the steering servo is installed. 8. Route the rudder servo lead through the fuselage and formers as shown. It will run through both formers and then come out over the top of the intakes into the front cockpit area. Always use threadlock on metal-to-metal fasteners to prevent them from vibrating loose. 7. Test fit the servo into the mounting blocks.
11. Remove the low-tack tape holding the rudder to the fin. Attach the linkage to the rudder and rudder servo. Make a slight bend in the linkage so it doesn’t hit the fuselage when the rudder is at full throw. Adjust the linkage so the rudder is centered when the rudder servo is centered. Slide the silicone tubing over the forks of the clevises and tighten the 2mm nuts against the clevises to prevent them from moving.
3. Remove the spar from the fuselage using a 2.5mm hex wrench. Check the fit of the spar in the stabilizer. It should easily slide in up to the line drawn on the spar in the previous step. 4. Check the fit of the stabilizer on the fuselage. It must fit tightly against the fuselage when the screws are installed that secure the spar to the fuselage. If the spar fits into the stabilizer and fuselage without any problems, the fit of the stabilizer to the fuselage should be perfect. 5.
9. Mix 1/2 ounce (15mL) of 15-minute epoxy. Apply the epoxy to the spar pocket of the stabilizer using a mixing stick. 11. Slide the spar into the stabilizer, making sure it is oriented correctly. Use a paper towel and rubbing alcohol to remove any excess epoxy from the stabilizer and spar. 12. Before the epoxy cures, slide the stabilizer into position against the fuselage. Keep the stabilizer tight against the fuselage until the epoxy fully cures.
Elevator Servo Installation 2. Repeat step 1 to prepare a second elevator servo. Note the servos will be identical. 4. Place 2–3 drops of thin CA in each of the holes. This will harden the threads made by the screws making them more secure when the elevator servo is installed. The screws for the elevator servo will go in at a slight angle so they can be accessed by the screwdriver. 5.
6. Repeat steps 3 and 4 using a 2mm x 8mm self-tapping screw and a #1 Phillips screwdriver to prepare and harden the holes for the pushrod support assembly. Allow the CA to soak into the wood for a minute, then apply CA accelerator to make sure the CA has fully cured before proceeding as the supports will need to be moved slightly when installing the fan assembly. Always use threadlock on metal-to-metal fasteners to prevent them from vibrating loose. 10.
12. Slide the piece of silicone tubing on a metal clevis. Thread a 2mm nut then the clevis on the end of the pushrod inside the fuselage. Connect the clevis to the elevator servo horn. Always use threadlock on metal-to-metal fasteners to prevent them from vibrating loose. It may be necessary to remove the horn from the elevator servo using a #1 Phillips screwdriver to attach the clevis to the horn.
Fan Installation 2. Pass the wires through the fan fairing. 4. Use a ruler and pencil to draw two lines along on the outside of the fan housing to indicate the location of the fan fairing. 5. Remove the fan fairing from the motor using a #1 Phillips screwdriver. Slide the exhaust tube over the fan unit. The seam on the tube will be toward the bottom of the fan. Use low-tack tape to tape the tube to the fan unit temporarily.
42 6. Measure back 1/2-inch (13mm) and 15/8-inch (42mm) from where the edge of the fan housing fits in the tube. Use these lines and those that aligned with the fan fairing to draw a rectangle on the tube. Carefully draw an airfoil shape that matches the fan fairing in the rectangle. 7. Use hobby scissors to trim the exhaust tube for the fan fairing. Slot the exhaust tube so it can be slid over the fan fairing. 9. Fit the fan housing into the fuselage.
10. Use a pin vise and 5/64-inch (2mm) drill bit to drill the four holes for the fan mounting screws. Make sure to drill the holes against the tabs of the housing so the fan does not slide forward or aft in the fuselage. 11. Use a #1 Phillips screwdriver to thread a 3mm x 10mm self-tapping screw into the four holes for mounting the fan unit. 13. Secure the fan unit in the fuselage using four 3mm x 10mm self-tapping screws. Tighten the screws using a #1 Phillips screwdriver. 12.
Exhaust Tube and Speed Control Installation 3. Position the exhaust tube so it overlaps onto the fan assembly. 4. Use clear tape to secure the thrust tube to the fan housing. 6. Route the leads from the motor through the oval opening at the bottom of the former near the intake ducts. Use clear tape to tape the leads to the fan housing and intake duct so they don’t move and interfere with the operation of the elevator servos. 7.
8. Connect the leads from the speed control to the leads from the motor. Use a pair of hemostats to hold the leads from the motor while you are plugging the leads from the controller into them.
4. (Optional Retracts) Prepare the retract harness by securing a 6-inch (152mm) and 9-inch (228mm) extension to the retract harness using string or a commercially available connector. This will plug into the retract channel of the receiver. Programs for the Habu using the DX8 are available for download on the Spektum website. 5. Plug the leads for the elevator, ailerons, flaps, and speed control into the receiver at this time.
Receiver Installation 8-channel Receiver Required Parts Fuselage assembly Harness from retract assembly 6-inch (152mm) Y-harness 3-inch (76mm) servo extension (flaps) 6-inch (152mm) servo extension (retracts) 9-inch (228mm) servo extension (retracts) 12-inch (304mm) servo extension (flaps) 18-inch (457mm) servo extension (2) (ailerons) 1. Prepare the flap harness by securing a 12-inch (304mm) extension to a 6-inch (152mm) Y-harness using string or a commercially available connector.
6. Use scissors to cut a small piece of hook and loop tape. Use the tape to secure the remote receiver in the fuselage. Motor Battery Installation Required Parts Fuselage assembly Hook and loop tape Motor battery Hook and loop strap Fan cover Required Tools and Adhesives Scissors Phillips screwdriver: #1 Programs for the Habu using the DX8 are available for download on the Spektum website. 5. Use scissors to cut a small piece of hook and loop tape.
3. Secure the battery in the fuselage using the hook and loop strap. Make sure the strap is not pinching any of the servo leads on the bottom side of the battery tray. Canopy Assembly 3. Use clear tape to secure the interior inside the canopy. Required Parts Canopy Cockpit interior Pilot (optional) (PKZ4414) Required Tools and Adhesives Hobby scissors Clear tape 1. Locate the cockpit interior and use hobby scissors to trim the interior along the inscribed line.
Center of Gravity Required Parts Assembled airframe Required Tools and Adhesives Balancing stand Felt-tipped pen 2. The recommended Center of Gravity (CG) location for your model is 315/16 to 41/2 inches (100 to 115mm) back from the leading edge of the wing as shown with the battery pack installed. Mark the location of the CG on the top of the wing with a felt-tipped pen. CAUTION: Do not inadvertently skip this step or property damage and injury could occur.
Elevator High Rate Up: Down: Mid Rate Up: Down: Low Rate Up: Down: Rudder High Rate Right: Left: Mid Rate Right: Left: Low Rate Right: Left: Preflight 12mm 12mm 18% Expo 24% Expo 10mm 10mm 10% Expo 12% Expo 8mm 8mm 5% Expo 8% Expo 20mm 20mm 12% Expo 12% Expo 18mm 18mm 8% Expo 8% Expo 15mm 15mm 5% Expo 5% Expo Flap Mid/Take-Off 11mm Flap Full/Landing 25mm Flap–Elevator Mix Mid/Take-Off 1mm down Flap Full/Landing 2mm down Travel Adjust
Flying Your Model Now that you have finished your Habu 32 and it’s ready to go, make one final check of a few things first. • Is the main battery fully charged? Is the transmitter fully charged? • Are dual rates and travel adjustments set for the first flight? Remember the Habu 32 is very responsive and it is highly recommended that you take off with middle rates and then switch to low rates right after takeoff.
Daily Flight Checks 1. Check the battery voltage of the transmitter battery. Do not fly below the manufacturer’s recommended voltage. To do so can crash your aircraft. When you check these batteries, ensure you have the polarities correct on your expanded scale voltmeter. 2. Check all hardware (linkages, screws, nuts, and bolts) prior to each day’s flight. Be sure that binding does not occur and that all parts are properly secured. 3. Ensure all surfaces are moving in the proper manner.
Warranty Services Questions, Assistance, and Repairs 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.
2010 Official Academy of Model Aeronautics Safety Code A. GENERAL A model aircraft is a non-human-carrying aircraft capable of sustained flight in the atmosphere. It may not exceed limitations of this code and is intended exclusively for sport, recreation and/or competition. All model flights must be conducted in accordance with this safety code and any additional rules specific to the flying site. 1. Model aircraft will not be flown: (a) In a careless or reckless manner.
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