MS:140 ASSEMBLY MANUAL “Graphics and specifications may change without notice”. Specifications: The Seagull “Silence Twister” is a scale model of a home built aircraft which is currently in production by the Silence Aircraft factory in Germany. With it’s unique elliptical wing shape which is very reminiscent of the famous Spitfire, the Twister captures the magnificent aerobatic characteristics of the Spitfire with the appearance and performance of a modern day pleasure craft.
SILENCE TWISTER. Instruction Manual. INTRODUCTION. Thank you for choosing the SILENCE TWISTER ARTF by SEAGULL MODELS. The SILENCE TWISTER was designed with the intermediate/advanced sport flyer 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 CONTENTS. 1 2 3 4 5 6 7 8 9 10 11 INSTALLING LED LIGHTING SYSTEM. Fuselage Canopy Left wing panel Right wing panel Tail set Aluminum wing tube Scale pilot Fiberglass cowl Main landing gear EP conversion pack Hardware bag included 4.8v led lights. ADDITIONAL ITEMS REQUIRED. 0.75-0.91 0.91-1.25 2-stroke. 4-stroke. Computer radio with 5 servos. Glow plug to suit engine. Propeller to suit engine. Protective foam rubber for radio system. Silicone fuel line. C/A glue.
SILENCE TWISTER. Instruction Manual. Hinge. 2) Remove each hinge from the wing panel and aileron and place a T-pin in the center of each hinge. Slide each hinge into the aileron until the T-pin is snug against the aileron. This will help ensure an equal amount of hinge is on either side of the hinge line when the aileron is mounted to the wing panel. T-pin. C/A glue. Hinge. 3) Slide the aileron on the wing panel until there is only a slight gap. The hinge is now centered on the wing panel and aileron.
www.seagullmodels.com Note: The hinge is constructed of a special material that allows the C/A to wick or penetrate and distribute throughout the hinge, securely bonding it to the wood structure of the wing panel and aileron. 7) Repeat this process with the other wing panel, securely hinging the aileron in place. 8) After both ailerons are securely hinged, firmly grasp the wing panel and aileron to make sure the hinges are securely glued and cannot be pulled out.
SILENCE TWISTER. Instruction Manual. INSTALL THE AILERONS CONTROL HORN. Epoxy. Epoxy. Epoxy. Flap control horn. INSTALL ELEVATOR CONTROL HORN. Epoxy. Aileron control horn. INSTALL FLAP CONTROL HORN. Epoxy.
www.seagullmodels.com ENGINE MOUNT INSTALLATION. 1) Locate the items necessary to install the engine mount included with your model. . Elevator control horn. M4x30mm. INSTALL RUDDER CONTROL HORN. 2) Use four M4x30mm 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. + 0.75 - 0.91: 2 STROKE. Epoxy. 5.5mm. Rudder control horn. 5.5mm.
SILENCE TWISTER. Instruction Manual. Blind nut. 5.5mm. Thread locker glue. 5.5mm. Blind nut. + 0.91 - 1.20 : 4 STROKE. Thread locker glue.
www.seagullmodels.com Vent tube. Fuel pick up tube. 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. Fuel fill tube. 3) Carefully bend the second nylon tube up at a 45º angle.
SILENCE TWISTER. Instruction Manual. Rudder servo. Fuel tank. Tie wrap. Throttle servo. Elevator servo. THROTTLE SERVO ARM INSTALLATION. Fuel tank. C/A glue. Install adjustable servo connector in the servo arm as same as picture below: Loctite secure. A Adjustable Servo connector. Servo arm. 1 PCS. Vent tube. Rudder servo arm. Fuel pick up tube. Fuel fill tube. Blow through one of the lines to ensure the fuel lines have not become kinked inside the fuel tank compartment.
www.seagullmodels.com Rudder servo arm. Trim and cut. Throttle servo arm. Elevator servo arm. INSTALLING THE SWITCH. Install the switch into the precut hole in the side, in the fuselage. 3/ 32” Hole. Switch. INSTALLING THE AILERON - FLAP SERVOS. Servos. Small weight. Thread. Trim and cut. 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.
SILENCE TWISTER. 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. 3) Use drill bit in a pin vise to drill the mouting holes in the blocks. Instruction Manual. 6) Secure the servo to the aileron hatch using Phillips screwdriver and the screws provided with the servo. 7) Apply 1-2 drops of thin C/A to each of the mounting tabs. Allow the C/A to cure without using accelerator. C/A glue.
www.seagullmodels.com Aileron servo. Flap servo. MOUNTING THE ENGINE. + ENGINE .75 - .91 : 2 STROKE. 1) Position the engine with the drive washer (140mm) forward of the firewall as shown. 140mm. 2) Use a pin drill and 4mm drill bit to drill a small indentation in the mount for the engine mounting screw.
SILENCE TWISTER. Instruction Manual. 4mm. 3) Use a drill to drill the four holes in the engine mount rails. 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. 4.5mm. 4) On the fire wall has the location for the throttle pusshrod tube (pre-drill). 5) Slide the pushrod tube in the firewall and guide it through the fuel tank mount.
www.seagullmodels.com + ENGINE .91 - 1.2 : 4 STROKE. 1) Position the engine with the drive washer (150mm) forward of the firewall as shown. 4.5mm. 5) Slide the pushrod tube in the firewall and guide it through the fuel tank mount. Use medium C/A to glue the tube to the firewall and the fuel tank mount. 150mm. 2) Use a pin drill and 4mm drill bit to drill a small indentation in the mount for the engine mounting screw. 4mm.
SILENCE TWISTER. Instruction Manual. Trim and cut. 9) Move the throttle stick to the closed position and move the carburetor to closed. Use a 2.5mm hex wrench to tighten the screw that secures the throttle pushrod wire. Make sure to use threadlock on the screw so it does not vibrate loose. Trim and cut. Because of the size of the cowl, it may be necessary to use a needle valve extension for the high speed needle valve. Make this out of sufficient length 1.
www.seagullmodels.com Trim and cut. 3) Install the muffler and muffler extension onto the engine and make the cutout in the cowl for muffler clearance. Connect the fuel and pressure lines to the carburetor, muffler and fuel filler valve. Secure the cowl to fuselage using the M3x10mm screws. Trim and cut. Machine screw M3x10mm. Needle valve. Trim and cut. Because of the size of the cowl, it may be necessary to use a needle valve extension for the high speed needle valve.
SILENCE TWISTER. Instruction Manual. ELECTRIC POWER CONVERSION. 1) Locate the items neccessary to install the electric power conversion included with your model. Machine screw M3x10mm. 3) Install the muffler and muffler extension onto the engine and make the cutout in the cowl for muffler clearance. Connect the fuel and pressure lines to the carburetor, muffler and fuel filler valve. Secure the cowl to fuselage using the M3x10mm screws. 18 - Model size: .75-.
www.seagullmodels.com 5.2mm. Blind nut. 5.2mm. Blind nut. M4x20mm. 3) Attach the motor to the front of the electric motor box using four 4mm blind nut, four M3x15mm hex head bolts to secure the motor. Please see picture shown. 4mm. M3x15mm.
SILENCE TWISTER. Instruction Manual. INSTALLING THE SPINNER. Install the spinner backplate, propeller and spinner cone. 140mm. Balsa stick. The propeller should not touch any part of the spinner cone. If it does, use a sharp modeling knife and carefully trim away the spinner cone where the propeller comes in contact with it. Epoxy. 4) Locate the plywood battery tray to the fuselage. Battery. INSTALLING THE HORIZONTAL STABILIZER. Tie wraps.
www.seagullmodels.com Cut. Pen. Remove the 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. Align the horizontal stabilizer with the wing. When viewed from the rear, the horizontal stabilizer should be level with the wing.
SILENCE TWISTER. Instruction Manual. Epoxy. Fill epoxy. Epoxy. 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. 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.
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.
SILENCE TWISTER. Instruction Manual. 2) Make a 90-degree bend at the mark and cut off the excess wire leaving 8mm past the bend. M2 lock nut. 3) Connect the linkage as shown and secure the control wire with a snap keeper. Metal clevis. Wing. M2 lock nut. 8mm Snap keeper. Servo arm. Aileron. Snap keeper. Wing. Aileron. Wing. Aileron. Repeat the procedure for the other aileron servo. INSTALLING THE FLAP PUSHROD. MOUNTING THE TAIL WHEEL. Repeat the procedure for the aileron pushrod.
www.seagullmodels.com M3x25mm. C/A glue. M3x4mm.
SILENCE TWISTER. Instruction Manual. 495mm. Cut. ELEVATOR PUSHROD HORN INSTALLATION. 1) Install the elevator control horn using the same method as with the aileron control horns. 2) Position the elevator control horn on the both side of elevator. Rudder control horn. Elevator control horn. Elevator pushrod. Control horn. Elevator control horn. M2 lock nut. Rudder control horn. Elevator pushrod. 3) Thread one clevis and M2 lock nut on to each elevator control rod.
www.seagullmodels.com Wire keeper. 8mm. 8mm. RUDDER PUSHROD HORN INSTALLATION. M2 lock nut . M2 clevis. 8mm. Pen. Elevator control horn. Rudder control horn. 8mm.
SILENCE TWISTER. Instruction Manual. Wire keeper. Elevator pushrod. Control horn. M2 lock nut. Metal clevis. Rudder pushrod. Pen. Cut. 8mm.
www.seagullmodels.com INSTALLING RETRACTABLE LANDING GEAR (OPTIONAL). 1) Locate the items necessary to install the retracts landing gear and retract linkage installation (excluded). Cut. 1.5mm. 200mm. 220mm. 2) Cut the covering from the bottom of the wing for retracts landing gear installation. 1.5mm. M3x12mm. Cut.
SILENCE TWISTER. Instruction Manual. Epoxy. 200mm. 220mm. Epoxy. Metal clevis.
www.seagullmodels.com Repeat the procedure for the other wing. 2 Epoxy. C/A glue. 1 M2x6mm. 3 APPLY THE DECALS. Epoxy. 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. INSTALLTION PILOT. 3 1 2) If all the decals are not precut, please use scissors or a sharp hobby knife to cut the decals from the sheet.
SILENCE TWISTER. Instruction Manual. INSTALLING THE BATTERY - RECEIVER. 1) Plug the five servo leads and the switch lead into the receiver. Plug the battery pack lead into the switch also. 2) Wrap the receiver and battery pack in the protective foam rubber to protect them from vibration. 3) Route the antenna in the antenna tube inside the fuselage and secure it to the bottom of fuselage using a plastic tape. Battery. Receiver. ATTACHMENT WING-FUSELAGE. Attach the aluminium tube into fuselage.
www.seagullmodels.com Accurately mark the balance point on the top of the wing on both sides of the fuselage. The balance point is located 110 mm back from the leading edge of the wing at the wing root. This is the balance point at which your model should balance for your first flights. Later, you may wish to experiment by shifting the balance up to 10mm forward or back to change the flying characteristics.
SILENCE TWISTER. Instruction Manual. CONTROL THROWS. INITIAL FLYING/SPORT FLYING. Ailerons: Elevator: Rudder: 10mm up 15mm up 10mm left 10mm down. 15mm down. 10mm right. AEROBATIC FLYING. Ailerons: Elevator: Rudder: 15mm up 20mm up 15mm left 15mm down. 20mm down. 15mm right. Do not use the aerobatic setting for initial test flying or sport flying. INITIAL FLYING/SPORT FLYING. AEROBATIC FLYING.
www.seagullmodels.com FLIGHT PREPARATION. PREFLIGHT CHECK. 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. A) Plug in your radio system per the manufacturer's instructions and turn everything on. B) Check the elevator first. Pull back on the elevator stick. The elevator halves should move up.
