www.seagullmodels.com ZLIN 50 MS: SEA 118-USA ASSEMBLY MANUAL “Graphics and specifications may change without notice”. Specifications: Wing span ----------------------------67.7in (172cm) Wing area -----------------779.7sq.in (50.3sq dm) Weight ------------------------8.6-9.7lbs (3.9-4.4kg) Length ------------------------------49.1in (124.6cm) Engine -------------.75 - .91cu.in ---------2-stroke. .91 - 1.00cu.in ------4-stroke. Radio ---------------6 channels with 5 digital servos.
Instruction Manual ZLIN 50. INTRODUCTION. Thank you for choosing the ZLIN 50 ARTF by SEAGULL MODELS. The ZLIN 50 was designed with the intermediate/advanced sport scale in mind. It is a semi scale airplane which is easy to fly and quick to assemble. The airframe is conventionally built using balsa, plywood to make it stronger than the average ARTF , yet the design allows the aeroplane to be kept light. You will find that most of the work has been done for you already.
www.seagullmodels.com KIT CONTEN.TS 1 2 3 4 5 6 7 8 8.1 8.2 9 10 11 12 13 Fuselage Canopy Left wing panel Right wing panel Tail set Aluminum wing tube Scale pilot 70mm wheels (2) Tail wheel gear Main landing gear Wheel pants (2) Decal sheet EP conversion pack Hardware bag included Fiberglass cowl HINGING THE AILERONS. Note: The control surfaces, including the ailerons, elevators, and rudder, are prehinged with hinges installed, but the hinges are not glued in place.
Instruction Manual ZLIN 50. T- pin. Hinge. 4)Deflect the aileron and completely saturate each hinge with thin C/A glue. The ailerons front surface should lightly contact the wing during this procedure. Ideally, when the hinges are glued in place, a 1/64” gap or less will be maintained throughout the lengh of the aileron to the wing panel hinge line.
www.seagullmodels.com HINGING THE RUDDER. Glue the rudder hinges in place using the same techniques used to hinge the ailerons. 4) Thread a control horn end with aluminum washer, lock nut until the top edge of the end is 18mm from the vase of the horn as shown. CONTROL HORN M3 SCREW. Epoxy. ALUMINUM WASHER. M3 LOCK NUT. ALUMINUM WASHER. Hinge. INSTALL THE AILERONS CONTROL HORN. 1) Locate the hardware necessary to install the control horns for the ailerons. 18mm . Epoxy. 2 sets.
Instruction Manual ZLIN 50. INSTALL RUDDER CONTROL HORN. Repeat steps to install the rudder control horn as same as steps done for ailerons. 2 sets. 3mm. 3x50mm. CONTROL HORN M3 Aluminum Washer. Epoxy. Horizontal Stabilizer. Elevator. Aluminum Washer. M3 LOCK NUT. 3mm. Epoxy. Horizontal Stabilizer. CONTROL HORN . M3 SCREW ALUMINUM WASHER. 16mm. EPOXY. FUSELAGE Rudder ALUMINUM WASHER. M3 LOCK NUT. Elevator control horn. EPOXY. Fuselage. 18mm. 6 Rudder.
www.seagullmodels.com Rudder control horn. ENGINE MOUNT INSTALLATION. 1) Locate the items necessary to install the engine mount included with your model. Diameter =5.5mm. M4 x 30mm. 2) Use four 4x30mm head bolts and four 4mm washers to attach the engine mount rails to the firewall. Tighten the screws . Make sure to use threadlock on the screws to help prevent them from vibrating loose. Thread locker glue. + .75-.91-1.00: 2 stroke. + 1.00-1.25: 4 stroke. o 1.2: 2 stroke-4 stroke.
Instruction Manual ZLIN 50. INSTALLING THE BATTERY. Battery. Tie Wrap. INSTALLING THE STOPPER ASSEMBLY. 1) Using a modeling knife, carefully cut off the rear portion of one of the 3 nylon tubes leaving 1/2” protruding from the rear of the stopper. This will be the fuel pick up tube. 2) Using a modeling knife, cut one length of silicon fuel line. Connect one end of the line to the weighted fuel pick up and the other end to the nylon pick up tube.(The silicon tube is not included).
www.seagullmodels.com You should mark which tube is the vent and which is the fuel pickup when you attach fuel tubing to the tubes in the stopper. Once the tank is installed inside the fuselage, it may be difficult to determine which is which. 9) Connect the lines from the tank to the engine and muffler. The vent line will connect to the muffler and the line from the clunk to the carburetor. 7) Slide the fuel tank into the fuselage. Guide the lines from the tank through the hole in the firewall.
Instruction Manual ZLIN 50. wheel. wheel collar. Washer. Axle. nut. M3. wheel Pant. Lite-Plywood block. 3) You have to trim each axle using a tool cutting and cut-off wheel. 4) Slide the collar to the axle and setscrew the collars to secure the collar to the axle and then slider the wheel on the axle with a drop of oil on the axle so the wheel will spin freely when installed. Prepare a second collar and tighten the setscrew using hex wrench to secure the collar to the axle.
www.seagullmodels.com 7) Tighten the setcrews using a hex wrench to secure the collars on the axle over the flat spot to retain the wheel as shown. INSTALLING THE FUSELAGE SERVO. Because the size of servos differ, you may need to adjust the size of the precut opening in the mount. The notch in the sides of the mount allow the servo lead to pass through. 1) Install the rubber grommets and brass collets onto the throttle servo. Test fit the servo into the aileron servo mount.
Instruction Manual ZLIN 50. INSTALLING THE SWITCH. Install the switch into the precut hole in the side of fuselage. Cut. 2) Use a pin drill and drill bit to drill a small indentation in the mount for the engine mounting screw. 3) Use a drill to drill the four holes in the engine mount rails. 4.2 mm diameter. 4) On the fire wall has the location for the throttle pusshrod tube (pre-drill). Switch. MOUNTING THE ENGINE.
www.seagullmodels.com Pushrod wire. Machine Screw M4x30mm. COWLING INSTALLATION. 1) Slide the fiberglass cowl over the engine and line up the back edge of the cowl with the marks you made on the fuselage then trim and cut as shown. Trim and cut. 8) Reinstall the servo horn by sliding the connector over the pushrod wire. Center the throttle stick and trim and install the servo horn perpendicular to the servo center line. Trim and cut.
Instruction Manual ZLIN 50. 2) While keeping the back edge of the cowl flush with the marks, align the front of the cowl with the crankshaft of the engine. The front of the cowl should be positioned so the crankshaft is in nearly the middle of the cowl opening. Use the spinner backplate as a guide. Hold the cowl firmly in place using pieces of masking tape. ELECTRIC POWER CONVERSION. 1) Locate the items neccessary to install the electric power conversion included with your model.
www.seagullmodels.com Epoxy. Epoxy. 140mm. Epoxy. Epoxy. Balsa block. 4mm. 3) Attach the motor to the front of the electric motor box using four 3mm blind nut, four 3mmx15mm hex head bolts to secure the motor. Please see picture shown. Blind nut. Balsa block. M3x15mm. 4mm.
Instruction Manual ZLIN 50. 4) Locate the plywood battery tray to the fuselage. Tighten the screws using machine screws M3x15mm to secure the tray in position. Battery. Needle valve. Machine Screw M3x10mm M3x15mm. 5) Attach the speed control to the side of the motor box using two-sided tape and tie wraps. Connect the appropriate leads from the speed control to the motor. Make sure the leads will not interfere with the operation of the motor.
www.seagullmodels.com 2) Place the servo between the mounting blocks and space it from the hatch. Use a pencil to mark the mounting hole locations on the blocks. 7) Apply 1-2 drops of thin C/A to each of the mounting tabs. Allow the C/A to cure without using accelerator. 3) Use drill bit in a pin vise to drill the mouting holes in the blocks. 8) A string has been provided in the wing to pull the aileron lead through to the wing root.
ZLIN 50. Instruction Manual 9) Set the aileron hatch in place and use a Phillips screw driver to install it with four wood screws. AILERON PUSHROD HORN INSTALLATION Mark. Pen. 1) Mark the control wire where it crosses the servo arm hole. Bend at the mark. 8mm. Cut. 2) Make a 90-degree bend at the mark and cut off the excess wire leaving 8mm past the bend.
www.seagullmodels.com Metal clevis. M2 lock nut. 3) Connect the linkage as shown and secure the control wire with a snap keeper. Wing. 8mm Snap keeper. Servo arm. M3 lock nut. Aileron. Snap keeper. Repeat the procedure for the other aileron servo. WING ASSEMBLY. 1) Locate the items necessary to attach the wing. 3) Slide the wings onto the tube and connect the aileron leads from the wing to the servo extension leads from the receiver. 1. 2. 3.
Instruction Manual ZLIN 50. 4) To help strengthen the wing tube, use machine screw M3x2.5mm to secure and lock the wing tube at end of wing tube as position already marked and predrilled, please see below pictures. 6) To install the gun onto the wing. Use a hobby knife to cut a slot at the leading edge of the wing as shown and glue it with C/A glue for the gun. 2.5mm. Screw. 2. M3x2.5mm. C/A glue. INSTALLING THE HORIZONTAL STABILIZER. 2.
www.seagullmodels.com 7) Remove the stabilizer. Using the lines you just drew as a guide, carefully remove the covering from between them using a modeling knife. Remove the covering. Remove covering. 3) Put the stabilizer into place in the position of the fuselage. 4) Install the stabilizer onto the fuselage. Align the centerline drawn on the top and the rear of the stabilizer with the centre of the fuselage. When that is aligned, hold the stabilizer in that position using T-pins or masking tape.
Instruction Manual ZLIN 50. Fill epoxy. 10) After the epoxy has fully cured, remove the masking tape or T-pins used to hold the stabilizer in place. Carefully inspect the glue joints. Use more epoxy to fill in any gaps that may exist that were not filled previously and clean up the excess using a paper towel and rubbing alcohol. 2) While holding the vertical stabilizer firmly in place, use a pen and draw a line on each side of the vertical stabilizer where it meets the top of the fuselage.
www.seagullmodels.com 4) When you are sure that everything is aligned correctly, mix up a generous amount of Flash 30 Minute Epoxy. Apply a thin layer to the mounting slot and to bottom of the vertical stabilizer mounting area. Apply epoxy to the bottom and top edges of the filler block and to the lower hinge also. Set the stabilizer in place and realign. Double check all of your measurements once more before the epoxy cures.
Instruction Manual ZLIN 50. C/A glue. 6) Thread one clevis and M2 lock nut on to each elevator control rod. Thread the horns on until they are flush with the ends of the control rods. 7) Elevator and rudder pushrods assembly as pictures below. Elevator pushrod. Elevator pushrod. Control horn. M2 lock nut. Metal clevis. 4) Install the elevator control horn using the same method as with the aileron control horns. 5) Position the elevator control horn on the both side of elevator. Rudder pushrod.
www.seagullmodels.com Elevator control horn. A. C/A glue. Rudder control horn. Rudder control horn. 9) Enlarge the outer hole in the rudder servo arm using a drill bit. Bend the pushrod wire at the mark made in the last step. Pass the wire through the servo arm and secure it using a nylon wire keeper. Remove any unused arms from the servo horn. Elevator control horn.
Instruction Manual ZLIN 50. 10) Elevator and rudder pushrods assembly follow pictures below. 2. 1. 2. 1. 11) Install servos arm to servos. Notice the position of the servo arms on the servos. See picture below. Throttle. Elevator. Rudder pushrod. Cut. Elevator pushrod. Rudder. MOUNTING THE TAIL WHEEL. Locate items necessary to install tail gear. 1. M3 x 12mm. 2) Using a pen, mark the locations of the two mounting screws.
www.seagullmodels.com If you are going to install a pilot figure, please use a sanding bar to sand the base of the figure so that it is flat. 3) Position the pilot figure on the canopy floor as show. Locate the oval shaped on the canopy floor and remove the covering. Use epoxy to glue this into the base of the pilot figure and glue the cockpit panel in place with C/A glue, please see pictures as shown. C/A glue. Epoxy. 2. 3. 1 10mm. 2 M3 x 12mm. 4) Position the canopy onto the fuselage.
Instruction Manual ZLIN 50. APPLY THE DECALS. 1) If all the decals are precut and ready to stick. Please be certain the model is clean and free from oily fingerprints and dust. Position decal on the model where desired, using the photos on the box and aid in their location. 2) If all the decals are not precut, please use scissors or a sharp hobby knife to cut the decals from the sheet. Please be certain the model is clean and free from oily fingerprints and dust.
www.seagullmodels.com With the wing attached to the fuselage, all parts of the model installed ( ready to fly), and empty fuel tanks, hold the model at the marked balance point with the stabilizer level. Lift the model. If the tail drops when you lift, the model is “tail heavy” and you must add weight* to the nose. If the nose drops, it is “nose heavy” and you must add weight* to the tail to balance.
Instruction Manual ZLIN 50. FLIGHT PREPARATION. PREFLIGHT CHECK. A) Check the operation and direction of the elevator, rudder, ailerons and throttle. 1) Completely charge your transmitter and receiver batteries before your first day of flying. B) Plug in your radio system per the manufacturer's instructions and turn everything on. C) Check the elevator first. Pull back on the elevator stick. The elevator halves should move up.
www.seagullmodels.com FOR USA MARKET ONLYLY. Safety,Precautions and Warnings As the user of this product, you are solely responsible for operating it in a manner that does not endanger yourself and others or result in damage to the product or the property of others. Carefully follow the directions and warnings for this and any optional support equipment (chargers, rechargeable battery packs, etc.) that you use.
Instruction Manual ZLIN 50. If you as the Purchaser or user are not prepared to accept the liability associated with the use of this Product, you are advised to return this Product immediately in new and unused condition to the place of purchase. Law: These Terms are governed by Illinois law (without regard to conflict of law principals). Safety Precautions: This is a sophisticated hobby Product and not a toy. It must be operated with caution and common sense and requires some basic mechanical ability.
