Piper J-3 Cub With Power 46 Assembly manual Specifications Wingspan: . .................................... 80 in (2032mm) Fuselage length: ......................... 49.9 in (1268mm) Wing area: .......................... 919 sq in (59.3 sq dm) Weight: ............................... 6.75–7.5 lb (3–3.4 kg) Motor: . ....................... E-flite® Power 46 (included) Radio: ...................................
Table of Contents Contents of Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Additional Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Covering Colors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Additional Required Tools and Adhesives . . .
Contents of Kit A C G F E D B Large Parts: A. Fuselage B. Wing C. Cowling D. Tail Set E. Landing Gear F. Wing Strut Set G.
Additional Required Tools and Adhesives Tools • Adjustable wrench • Crimping tool • Drill • Drill bit: 1/16", 5/64", 3/32" • Felt-tipped pen • Heat gun • Hobby knife • Hobby scissors • Petroleum jelly • Phillips screwdriver (small) • Phillips screwdriver (large) • Pliers • Rotary tool w/sanding drum • Ruler • Sandpaper • Soldering iron • Solder • String • Threadlock (PAAPT42) • T-pins Adhesives • 30-minute Epoxy (HAN8002) • Thin CA (PAAPT08) • Medium CA (PAAPT02) • Canopy Glue (PAAPT56) Other Required Item
Warranty Period Exclusive Warranty- Horizon Hobby, Inc., (Horizon) warranties that the Products purchased (the "Product") will be free from defects in materials and workmanship at the date of purchase by the Purchaser. Limited Warranty (a) This warranty is limited to the original Purchaser ("Purchaser") and is not transferable. REPAIR OR REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS THE EXCLUSIVE REMEDY OF THE PURCHASER. This warranty covers only those Products purchased from an authorized Horizon dealer.
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 877.504.0233 toll free to speak to a service technician.
Safety, Precautions, and Warnings This model is controlled by a radio signal that is subject to interference from many sources outside your control. This interference can cause momentary loss of control so it is advisable to always keep a safe distance in all directions around your model, as this margin will help to avoid collisions or injury. • Always operate your model in an open area away from cars, traffic, or people. • Avoid operating your model in the street where injury or damage can occur.
Section 1: Hinge Installation Required Parts • Stabilizer • Fuselage • Wing • Tail gear wire Step 3 • Elevator • Rudder • Aileron (R&L) • Hinge (17) Place the hinges in the stabilizer. Required Tools and Adhesives • Thin CA • T-pins • 30-minute epoxy • Petroleum jelly • Drill • Drill bit: 1/16", 3/32" • Hobby knife Step 1 Step 4 Locate three hinges. Place a T-pin in the center of each hinge. Slide the elevator and stabilizer together. Remove the T-pins.
Section 1: Hinge Installation Step 6 Step 9 After the CA has cured, flex the surfaces several times to break in the hinges. Coat the tail gear wire near the bushing with petroleum jelly. Work the lubricant into the bearing to prevent epoxy from entering the bearing, gluing the bearing to the wire. Step 7 Pull on both surfaces to make sure the hinges are secure. Hint: Use a heat gun to warm the petroleum jelly to allow it to flow into the bushing.
Section 1: Hinge Installation Step 11 Step 13 Cut a groove from the hole to the bottom of the rudder to allow clearance for the tail gear bearing. Cut a slot in the end of the fuselage to accept the tail gear bearing. Step 12 Step 14 Apply a thin layer of lubricant where the bearing will ride in the rudder. Use 30-minute epoxy to glue the wire into the rudder. Install three hinges into the rudder. Test fit the rudder to the fuselage, sliding the hinges and tail wheel bracket into position.
Section 2: Motor and Cowling Installation Required Parts • Fuselage • Propeller • Propeller adapter • Cowling • #2 x 3/8" sheet metal screw (4) Required Tools and Adhesives • Phillips screwdriver (small) • Drill • Drill bit: 1/16", 5/64" • Soldering iron • Solder • Electronic speed control w/connectors Step 2 Tin the ends of the wires on your speed control by using the iron to heat the bare wires.
Section 2: Motor and Cowling Installation Step 4 Step 7 Once all the connectors have been installed, use heat shrink tubing to insulate them. If not insulated, they could short and damage the speed controller. Use double-sided tape or sticky back hook and loop to secure the speed control inside the fuselage. Make sure it can't move around, and that the wires going to the motor are secure and won't interfere with the operation of the motor.
Section 2: Motor and Cowling Installation Step 9 Step 11 Use the hook and loop straps to secure the battery inside the fuselage. Unplug the speed control from the battery and receiver at this time. Install the battery hatch back onto the fuselage. Note: If you find the battery slides forward or backward, simply apply a piece of hook and loop material on the battery floor and battery to keep the battery in position.
Section 3: Servo Installation (Aileron) Required Parts • Wing (L&R) • #2 x 3/8" screw (8) • 2mm x 20mm screw (6) • Clevis retainer (2) • 4 3/4" pushrod wire (2) • Pushrod wire keeper (2) Step 2 • Servo hatch (L&R) • Control horn (2) • Clevis (2) Install the recommended servo hardware (grommets and eyelets) supplied with the servo. Temporarily install a long half servo arm (JRPA212) onto the servo and position the servo onto the hatch so the servo arm is centered in the notch.
Section 3: Servo Installation (Aileron) Step 4 Step 6 Place the aileron servo between the mounting blocks and use a felt-tipped pen to mark the location of the four servo mounting screws. Note that the servo must not touch the hatch in order to isolate engine vibration. Connect a 12" Servo Lead Extension (JRPA098) to the servo lead.
Section 3: Servo Installation (Aileron) Step 7 Step 8 Tie a wheel collar onto a piece of string. Drop the wheel collar into the wing from the root and retrieve it from the servo opening. Tie the string onto the servo extension. Gently pull the extension through the wing using the string. Untie the string when the servo lead has been pulled through. Use tape to secure the servo lead to the wing to prevent it from falling back into the wing panel. Step 9 Secure the hatch using four #2 x 3/8" screws.
Section 3: Servo Installation (Aileron) Step 10 Step 12 Place a clevis retainer onto a clevis. Thread the clevis onto a 4 3/4" pushrod wire. Remove the backplate from a control horn, and then attach the clevis to the control horn. Drill the locations marked in the previous step using a 3/32" drill bit. Step 13 Step 11 Position the control horn on the aileron. Use the pushrod wire as a guide to align the horn to the servo arm. Position the horn so the holes align with the hinge line.
Section 3: Servo Installation (Aileron) Step 14 Step 15 Plug in the aileron servo to the radio system. Center the trims on the transmitter to center the aileron servo. Hold the aileron in neutral. Use a felt-tipped pen to mark the pushrod wire where it crosses the servo arm. Bend the pushrod wire at the mark. Use a pushrod wire keeper to secure the pushrod wire to the servo arm. Step 16 Repeat Steps 1 though 15 for the remaining wing panel.
Section 4: Servo Installation (Fuselage) Required Parts • Fuselage • Clevis retainer • Wing strut mount (2) • 19 3/4" pushrod dowel • Pushrod wire (32”) • 2 1/8" heat shrink tubing (2) • 2mm x 12mm screw (3) • 7 1/4" pushrod wire (2) Step 2 • Clevis • Control horn • #4 x 3/8" screw (4) • 6" pushrod wire Slide the wing strut mount into the opening. Secure the mount using two #4 x 3/8" screws.
Section 4: Servo Installation (Fuselage) Step 5 Step 6 Place a clevis retainer onto a clevis. Thread the clevis onto a 32" pushrod wire. Remove the backplate from a control horn, and then attach the clevis to the control horn. Slide the pushrod into the rudder pushrod tube in the fuselage. Position the horn so the holes align with the hinge line. Use a felt-tipped pen to mark the positions for the three mounting bolts. Drill the locations marked in the previous step using a 3/32" drill bit.
Section 4: Servo Installation (Fuselage) Step 8 Step 10 Remove the pushrod wire from the fuselage and remove the clevis. Bend the pushrod wire at the mark. Slide the pushrod back into the fuselage from the radio compartment, and then put the clevis back onto the wire. Use a pushrod wire keeper to secure the pushrod wire to the servo arm. Cut a groove into the pushrod from the hole to the end of the pushrod. Repeat for the opposite side so you end up with two grooves.
Section 4: Servo Installation (Fuselage) Step 13 2 1/ Slide the 8" piece of heat shrink over the wires and dowel. Use a heat gun or lighter to shrink the tubing. Once the tubing has been shrunk, apply thin CA to each end of the shrink to complete this part of the pushrod assembly. Step 14 Repeat Steps 9 through 13 for the opposite end of the dowel, but only drill one hole 1" from the end and prepare one 6" pushrod wire with a bend 1/4" from the non-threaded end.
Section 5: Window Installation Required Parts • Side window (L&R) • Support (2) Step 3 • Front windscreen • Fuselage hatch Cut and fit the two supports to the fuselage. Use medium CA to glue them into position. Required Tools and Adhesives • Hobby scissors • Canopy glue • Hobby knife Step 1 Use hobby scissors and a hobby knife to trim the side windows from their sheets. Leave a 1/8" lip to glue the windows to the fuselage. Step 4 Test fit the front windscreen into position. Trim as necessary.
Section 6: Landing Gear Installation Required Parts • Landing gear • 3.35" (85mm) wheel (2) • Wheel cap (2) • Inner wheel hub (2) • Outer wheel hub (2) • 1" (25mm) wheel • Landing gear strap (4) • 2mm x 14mm screw (8) • Large wheel collar w/setscrew (4) • 3mm x 10mm screw (8) • Small wheel collar w/setscrew Step 2 Position the 3.35" (85mm) wheel onto the inner hub. Attach the outer wheel hub to the inner wheel hub using four 2mm x 14mm screws.
Section 6: Landing Gear Installation Step 5 Step 6 Position the landing gear to the bottom of the fuselage. Secure the position of the gear using four landing gear straps and eight 3mm x 10mm screws. Secure the tail wheel using the small wheel collar and setscrew.
Section 7: Installing the Stabilizer Step 2 Step 4 Attach a control horn to one of the elevator clevises. Line the holes in the control horn with the hinge line and mark the location for the mounting crews onto the elevator. Repeat Steps 2 and 3 for the remaining elevator control horn. Step 5 Attach the elevator pushrod to the servo arm of the elevator servo using a pushrod wire keeper. Step 6 Bend each of the fittings (small and large) to about a 45-degree angle.
Section 7: Installing the Stabilizer Step 8 Step 10 Attach the small brass fitting to the fin and stabilizer using 2-56 x 1/2" screws, #2 washers and 2-56 nuts. Fittings are placed on both sides of the rudder and the top and bottom of the stabilizer. Cut the cable into four equal pieces. Prepare one cable by sliding the cable through a crimp, through the cable end, then back through the crimp twice. Pull the excess cable tight and use a crimping tool to complete the job.
Section 7: Installing the Stabilizer Step 11 Step 12 Attach the four connectors to the brass fittings of the stabilizer. Repeat Step 10, only passing the cable through the brass fittings instead of the cable ends. The cables should have very light tension. Note: Be careful not to overtighten cables as you may introduce a warp into the tail surfaces.
Section 8: Wing Installation Step 2 Thread the strut support anchors into the holes in the wing until the threads are no longer exposed. The anchors have external threads. Note: The airfoil of the struts matches the direction of the wing. The struts also have fittings in the center, which will face towards the wing when installed. Step 4 Thread a 4-40 nut onto the threaded end of the strut. Thread a strut end onto the strut. The nut will be used once the strut has been adjusted.
Section 8: Wing Installation Step 6 Step 8 Slide the wing tube into the wing panel. Slide the tube and panel into position on the fuselage. Support the fuselage so the wing is not resting on the work surface. Adjust the strut end so it aligns with the wing strut mount. Attach the wing struts using two 4-40 x 1/2" socket head bolts and two 4-40 locking nuts. Once attached, tighten the 4-40 nuts on the strut to prevent the end from rotating when the wing is removed for storage.
Control Throws The amount of control throw should be adjusted as closely as possible using mechanical means, rather than making large changes electronically at the radio. By moving the position of the clevis at the control horn toward the outermost hole, you will decrease the amount of control throw of the control surface. Moving it toward the control surface will increase the amount of throw.
Recommended CG An important part of preparing the aircraft for flight is properly balancing the model. This is especially important when various engines are mounted. Caution: Do not inadvertently skip this step! The recommended Center of Gravity (CG) range for the Piper J-3 Cub is 31/4" (82.5mm) behind the leading edge of the wing against the fuselage. It is suggested to start at the forward end of the range until comfortable with the flight characteristics of your aircraft.
Notes:
2007 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.
2007 Official AMA National Model Aircraft Safety Code 5) Flying sites separated by three miles or more are considered safe from site-to site interference, even when both sites use the same frequencies. Any circumstances under three miles separation require a frequency management arrangement, which may be either an allocation of specific frequencies for each site or testing to determine that freedom from interference exists.
© 2007 Horizon Hobby, Inc. 4105 Fieldstone Road Champaign, Illinois 61822 (877) 504-0233 horizonhobby.com 9892.
