1400mm J-3 V4

As with the J-3 V2, the 1400mm J-3 V4 is easy to assemble, lightweight and filled with scale details. Simple screw-together design allow the pilot to store the aircraft with ease, while the realistic landing gear and engine guarantees the maximum wow-factor at the field! Like the V3, an attractive red and white livery along with option- al floats make the aircraft as versatile as the real thing. The V4 introduces a highly-realistic CNC metal landing gear that is extremely robust- guaranteed to put up with the harshest of landings. A traditional 4 channel aircraft, the J-3 Cub V4 is an excellent trainer and scale aircraft all in one package- suitable for pilots of all skill levels! Features • High output power system- 3536 850KV motor paired with a 40A Predator ESC • Excellent scale features- engine components, landing gear set etc • Upgraded CNC metal shock-absorbing landing gear • Simple screw-together assembly • Preinstalled ball-link pushrods increases control surface throw • Robust and lightweight EPO material • Optional floats Landing gear set installation Main wing set installation 4 Model assembly 1.With the fuselage bottom facing up, carefully Install the landing gear set to the fuselage with the included screws as shown. 2.Attach the springs to the landing gear assembly as shown. 1.Have the screws go through the supporting bar and then secure on the base. 2.Lock up the fasteners of supporting bar on fuselage as shown. EN HKM3*10 HKM3*16 M3 screw nut 5 Model assembly EN 3.Slide the tube into the fuselage then install both wings over the wing tube and into the wing slot of the fuselage. Notice: The connectors on both side should be attached precisely and firmly. 4.Secure the wings on the fuselage using the included screws as shown. 5.Lock up the fasteners of supporting bar on main wing as shown. HKM3.0*10 KA2.0*8 6 EN Model assembly Horizontal stabilizer installation 1.Secure the horizontal stabilizer using included screws as shown. 1.Make sure the servos are in the neutral position. Install the linkage rod to elevator control horn as shown. Secure the linkage rod in place using the included screw as shown. Linkage rod installation 1.Slide vertical stabilizer in the rear of the fuselage. 2.Secure the vertical stabilizer using included screws as shown. Vertical stabilizer installation KA2.0*8 KA2.0*12 7 EN Model assembly 2.Make sure the servos are in the neutral position. Install the l inkage rod to rudder control horn as shown. Note: Please refer to the control horn and servo arm settings in page 11. 1.Hook the tail struts to horizontal stabilizer and vertical stabilizer as shown. Tail strut installation Antenna installation 1.Insert the antenna as shown. 8 EN Model assembly 1.Assemble the float struts to the plastic holder as shown and secure the struts with screws. Float set installation Propeller installation 1.Assemble the propeller as shown. 2.Secure the float set onto the bottom of fuselage using the included plastic parts and screws as shown. Notice: The connectors on both side should be attached precisely and firmly. Screws 3*4 HKM3.0*10 Important ESC and model information The ESC included with the model has a safe start. If the motor battery is connected to the ESC and the throttle stick is not in the low throttle or off position, the motor will not start until the throttle stick is moved to the low throttle or off position. Once the throttle stick is moved to the low throttle or off position, the motor will emit a series of beeps. Several beeps with the same tune means the ESC has detected the cells of the battery. The count of the beeps equals the cells of the battery. The motor is now armed and will start when the throttle is moved. The motor and ESC come pre-connected and the motor rotation should be correct. If for any reason the motor is rotating in the wrong direction, simply reverse two of the three motor wires to change the direction of rotation. The motor has an optional brake setting. The ESC comes with brake switched off and we recommend that the model be flown with the brake off. However, the brake could be accidentally switched on if the motor battery is connected to the ESC while the throttle stick is set at full throttle. To switch the brake off, move the throttle stick to full throttle and plug in the motor battery. The motor will beep one time. Move the throttle stick to low throttle or the off position. The motor is ready to run and the brake will be switched off. Battery Selection and Installation. We recommend the 11.1V 2200mAh 25C Li-Po battery. If using another battery, the battery must be at least a 11.1V 2200mAh 25C battery. Your battery should be approximately the same capacity, dimension and weight as the 11.1V 2200mAh 25C Li-Po battery to fit the fuselage without changing the center of gravity significantly. 1. 2. 3. 4. 9 1.Pull back on the latch, releasing the canopy. 2.Remove the canopy, revealing the battery compartment. 3.Apply hook and loop tape to the battery. 4.Install a fully charged battery into the battery compartment, with the battery cables facing aft. Note: The center of gravity can be adjusted by moving the battery forward or aft.Having the correct center of gravity is critical to achieving proper flight characteristics. EN Battery installation Receiver diagram Preflight check The cables from the servo connector board should be connected to your receiver in the order shown. Note that the LEDs can be powered by any spare channel on the receiver. Tuck the wire leads into the recessed cavity towards the rear of the battery hatch. Spare Gear Rudder Throttle EIevator Aileron Channel-1 Aile Channel-2 Elev Channel-3 Thro Channel-4 Rudd Channel-5 Gear Channel-6 Spare 6 5 4 3 2 1 Transmitter and model setup Before getting started, bind your receiver with your transmitter. Please refer to your transmitter manual for proper operation. CAUTION: To prevent personal injury, DO NOT install the propel- ler assembly onto the motor shaft while testing the control surfac- es. DO NOT arm the ESC and do not turn on the transmitter until the Transmitter Manual instructs you to do so. Tips: Make sure all control sticks on your radio are in the neutral position (rudder, elevator, ailerons) and the throttle is in the OFF position. Make sure both ailerons move up and down (travel) the same amount. This model tracks well when the left and right ailerons travel the same amount in response to the control stick. Move the controls on the transmitter to make sure the aircraft control surface moves correctly. See diagrams right. 10 Control throws The suggested control throw setting for the Piper J-3 Cub V3 are as follows (dual rate setting): Tips: On the first flight, fly the model in low rate. The first time you use high rates,be sure to fly at low to medium speeds. High rate, as listed, is only for EXTREME maneuvering. EN Aileron Bank left Bank right Elevator Climb Descend Steering Rudder Steer left Steer right 16 12 12 14 16 18 11 More control throw Less control throw Horns Arms a. b. c. d. e. f. EN Clevis installation 1.Pull the tube from the clevis to the linkage. 2.Carefully spread the clevis, then insert the clevis pin into the desired hole in the control horn. 3.Move the tube to hold the clevis on the control horn. Control horn and servo arm settings The table shows the factory settings for the control horns and servo arms. Fly the aircraft at the factory settings before making changes. After flying,you may choose to adjust the linkage positions for the desired control response. Elevator Rudder Ailerons Check the C.G. (Center of gravity) When balancing your model, adjust the battery as necessary so the model is level or slightly nose down. This is the correct balance point for your model. After the first flights, the CG position can be adjusted for your personal preference. 1. The recommended Center of Gravity (CG) location for your model is(55-65mm) from the leading edge of the main wing (as shown) with the battery pack installed. Mark the location of the CG on top of the wing. 2. When balancing your model, support the plane at the marks made on the bottom of the main wing with your fingers or a commercially available balancing stand. This is the correct balance point for your model. Make surethe model is assembled and ready for flight before balancing. 55mm-65mm Take off Maintenance Landing Find a suitable flying site Perform the range check for your plane Monitor your flight time Find a flying site clear of buildings, trees, power lines and other obstructions. Until you know how much area will be required and have mastered flying your plane in confined spaces, choose a site which is at least the size of two to three football fields - a flying field specifically for R/C planes is best. Never fly near people - especially children, who can wander unpredictably. As a precaution, an operational ground range test should be performed before the first flight each time you go out. Performing a range test is a good way to detect problems that could cause loss of control such as low batteries, defective or damaged radio components, or radio interference. This usually requires an assistant and should be done at the actual flying site you will be using. First turn on the transmitter, then install a fully-charged battery into the fuselage. Connect the battery and install the hatch. Remember, use care not to bump the throttle stick. Otherwise, the propeller/fan will turn and possibly cause damage or injury. Note: Please refer to your Transmitter Manual that came with your radio control system to perform a ground range check. If the controls are not working correctly or if anything seems wrong, do not fly the model until you correct the problem. Make certain all the servo wires are securely connected to the receiver and the transmitter batteries have a good connection. Monitor and limit your flight time using a timer (such as on a wristwatch or in your transmitter if available). When the batteries are getting low you will usually notice a performance drop before the ESC cuts off motor power, so when the plane starts flying slower you should land. Often (but not always) power can be briefly restored after the motor cuts off by holding the throttle stick all the way down for a few seconds. To avoid an unexpected dead-stick landing on your first flight, set your timer to a conservative 4 minutes. When your alarm sounds you should land right away. 12 EN Before flying the model Flying course While applying power, slowly steer to keep the model straight. The model should accelerate quickly. As the model gains flight speed you will want to climb at a steady and even rate. It will climb out at a nice angle of attack (AOA). Flying Always choose a wide-open space for flying your plane. It is ideal for you to fly at a sanctioned flying field. If you are not flying at an approved site always avoid flying near houses, trees, wires and buildings. You should also be careful to avoid flying in areas where there are many people, such as busy parks, schoolyards, or soccer fields. Consult laws and ordinances before choosing a location to fly your aircraft. After takeoff, gain some altitude. Climb to a safe height before trying technical manoeuvres, including high speed passes, inverted flight, loops, and point rolls. Land the model when you hear the motor pulsing (LVC) or if you notice a reduction in power. If using a transmitter with a timer, set the timer so you have enough flight time to make several landing approaches. The model’s three point landing gear allows the model to land on hard surfaces. Align model directly into the wind and fly down to the ground. Fly the airplane down to the ground using 1/4-1/3 throttle to keep enough energy for proper flare. Before the model touches down, always fully decrease the throttle to avoid damaging the propeller or other components. The key to a great landing is to manage the power and elevator all the way to the ground and set down lightly on the main landing gear. After a few flights you will find the model can be set down lightlyon the mains and you can hold the nose wheel off balancing themodel on the mains until it slows and gently settles the nose. Repairs to the foam should be made with foam safe adhesives such as hot glue, foam safe CA, and 5min epoxy. When parts are not repairable, see the Spare Parts List for ordering by item number. Always check to make sure all screws on the aircraft are tightened. Pay special attention to make sure the spinner is firmly in place before every flight. 13 EN Trouble shooting Problem Possible Cause Solution Aircraft will not respond to the throttlebut responds to other controls. -ESC is not armed. -Throttle channel is reversed. -Lower throttle stick and throttle trim to lowest settings. -Reverse throttle channel on transmitter. Extra propeller noise or extra vibration. -Damaged spinner, propeller, motor or motor mount. -Loose propeller and spinner parts. -Propellor installed backwards. -Replace damaged parts. -Tighten parts for propeller adapter, propeller and spinner. -Remove and install propeller correctly. Reduced flight time or aircraft underpowered. -Flight battery charge is low. -propeller installed backward. -Flight battery damaged. -Completely recharge flight battery. -Replace flight battery and follow flight battery instructions. Control surface does not move, or is slow to respond to control inputs. -Control surface, control horn, linkage or servo damage. -Wire damaged or connections loose. -Replace or repair damaged parts and adjust controls. -Do a check of connections for loose wiring. Controls reversed. Channels are reversed in the transmitter. Do the control direction test and adjust controls for aircraft and transmitter. -Motor loses power -Motor power pulses then motor loses power. -Damage to motor, or battery. -Loss of power to aircraft. -ESC uses default soft Low Voltage Cutoff(LVC). -Do a check of batteries, transmitter, receiver, ESC, motor and wiring for damage(replace as needed). -Land aircraft immediately and recharge flight battery. LED on receiver flashes slowly. Power loss to receiver. -Check connection from ESC to receiver. -Check servos for damage. -Check linkages for binding. Spare parts list content FMSRK101-1 FMSRK102 FMSRK103 FMSRK104 FMSRK105 FMSRK106 FMSRK107 FMSRK108-1 FMSRK109 FMSRK110 FMSRK111 FMSRK112-1 FMSPROP021 FMSDZ007 FMSDJ007 Fuselage Main wing set Horizontal stabilizer Vertical stabilizer Cowl Linkage rod Supporting bar set Front landing gear set Sticker Propeller plate Pipe Screw set Propeller Motor shaft Motor mount FMSBM009 PRKV850 PRESC001 FMSSER9GPW FMSCHR01 FMSFLT004 Motor board Brushless motor 40A ESC 9g Servowith waterproof function) Charger Float Set Visit our website: www.fmsmodel.com to see photo of this product. Enter the key word "ESC" in the search bar for the stock ESC instruction manual.