MS: 11 INSTRUCTIONS FOR FINAL ASSEMBLY “Graphics and specfications may change without notice”. Specifications: Wingspan -------------------------------------------- 156 cm, 61.42 in. Wing area --------------------------------- 3900 sq.cm, 604.5 sq.in. Approximate flying weight ------------ 2.6-2.9 kg, 5.72-6.38 lbs. Recommended engine size ------------- .46-.52 cu.in 2-stroke. .52 cu.in 4-stroke. Recommended R/C ------------------------- 4 channels with 6 servos minimum. Made in Vietnam.
FAIRCHILD PT-19 Instruction Manual INTRODUCTION. Thank you for choosing the PT-19 ARTF by SEAGULL MODELS. The PT-19 was designed with the intermediate/advanced sport flyer in mind. It is a low-wing scale aeroplane which is easy to fly and quick to assemble. The airframe is conventionally built using balsa, plywood 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.
FAIRCHILD PT-19 NOTE: To avoid scratching your new aeroplane we suggest that you cover your workbench with an old towel. Keep a couple of jars or bowls handy to hold the small parts after you open the bags. Please trial fit all parts. Make sure you have the correct parts and that they fit and are aligned properly before gluing! This will ensure proper assembly as the PT-19 is made from natural materials and minor adjustments may have to be made. The paint and plastic parts used in this kit are fuel proof.
FAIRCHILD PT-19 3) Slide the wing panel on the aileron until there is only a slight gap. The hinge is now centered on the wing panel and aileron. Remove the T-pins and snug the aileron against the wing panel. A gap of 1/64” or less should be maintained between the wing panel and aileron. T-pin. Instruction Manual 5) Turn the wing panel over and deflect the aileron in the opposite direction from the opposite side.
FAIRCHILD PT-19 Instruction Manual 2) Remove the brace when satisfied with its fit ineach wing half. Coat both sides of one half of the dihedral brace with 30 minute epoxy. Next, pour some epoxy into the dihedral box in one wing panel. Make sure you cover the top and bottom as well as the sides of the dihedral brace. Use enough epoxy to fill any gaps. HINGING THE RUDDER. Glue the rudder hinges in place using the same techniques used to hinge the ailerons. Epoxy. Hinge. WING ASSEMBLY.
FAIRCHILD PT-19 Instruction Manual 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. Masking tape. 4) When the epoxy has cured, carefully remove the masking tape from the wing. 5) Peel off the backing from the self adhesive covering strip. Apply the strip to the centre section of the wing starting from the bottom trailing edge.
FAIRCHILD PT-19 Instruction Manual Servo wire. String. Plastic tape. 4) Attach the string to the servo lead and carefully thread it though the wing. Once you have thread the lead throught the wing, remove the string so it can use for the other servo lead. Tape the servo lead to the wing to prevent it from falling back into the wing. 6) Reinstall the servo into the servo mount and secure the servo inplace using the wood screws provided with you radio system. String.
FAIRCHILD PT-19 Instruction Manual 2) Locate the two nylon control horns, two nylon control horn backplates and four machine screws. Pen. 2mm X 20mm. 3) Position the aileron horn on the bottom side of aileron. The clevis attachment holes should be positioned over the hinge line. Cut. Control Horn. Mounting Screws. Mounting Plate. 4)Using a 1mm drill bit and the control horns as a guide, drill the mounting holes through the aileron halves.
FAIRCHILD PT-19 MAIN LANDING GEAR INSTALLATION. INSTALLING THE MAIN GEAR WIRES. 1) Using a modeling knife, remove the covering from over the two main gear mounting slots located in the bottom of the wing. One slot is located in each wing half. Instruction Manual 5) Remove the two straps and the gear wire. Drill four 1mm pilot holes into the wing for the wood screws. Be careful not to drill through the top of the wing! Remove covering. Traps. Main gear mounting slot.
FAIRCHILD PT-19 Instruction Manual INSTALLING THE ENGINE MOUNT. Vent tube. See pictures below: 4x20mm. Fuel fill Tube. Fuel Pick up Tube. When the stopper assembly is installed in the tank, the top of the vent tube should rest just below the top surface of the tank. It should not touch the top of the tank. M4 machine screw. 4) Test fit the stopper assembly into the tank. It may be necessary to remove some of the flashing around the tank opening using a modeling knife.
FAIRCHILD PT-19 Instruction Manual Blow through one of the lines to ensure the fuel lines have not become kinked inside the fuel tank compartment. Air should flow through easily. MOUNTING THE ENGINE. PARTS REQUIRED 3 x 25mm. Slide the tank into the fuselage from inside so that the neck is at the top of the fuselage and it locates through the engine bulkhead. Gently secure it to the top horizontal former with the cable tie .
FAIRCHILD PT-19 COWLING. PARTS REQUIRED {1} Molded Fiberglass Cowling {4} 3mm x 10mm Wood Screws Instruction Manual front of the cowl should be positioned so the crankshaft is in the middle of the cowl opening. Hold the cowl firmly in place using pieces of masking tape. 4) With the cowl held firmly in place, transfer the marks from the fuselage, that were drawn onto the fuselage previously, onto the cowl.
FAIRCHILD PT-19 Instruction Manual Switch. Open hole for air intake. 2) Install the rubber grommets and brass collets onto the elevator, rudder and throttle servos. Test fit the servos into the preinstalled servo tray. Because the size of servos differ, you may need to adjust the size of the precut openings in the tray. 3) Position the servos into the servo tray with the output shafts orientated as shown below. Drill 1/16” pilot holes through the tray for each of the mounting screws. Elevator. Switch.
FAIRCHILD PT-19 Instruction Manual HORIZONTAL STABILIZER. PARTS REQUIRED {1} Horizontal Stabilizer with Elevator Halves ALIGNING THE HORIZONTAL STABILIZER. 1) Using a ruler and a pen, locate the centerline of the horizontal stabilizer, at the trailing edge, and place a mark. Use a triangle and extend this mark, from back to front, across the top of the stabilizer. Also extend this mark down the back of the trailing edge of the stabilizer. Draw centerline.
FAIRCHILD PT-19 Instruction Manual 5) 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. VERTICAL STABILIZER INSTALLATION.
FAIRCHILD PT-19 Instruction Manual 5) Slide the vertical stabilizer back in place. Using a triangle, check to ensure that the vertical stabilizer is aligned 90º to the horizontal stabilizer. Horizontal Stabilizer. Vertical Stabilizer. 90º 6) 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 in the top of the fuselage and to the sides and bottom of the vertical stabilizer mounting area.
FAIRCHILD PT-19 Instruction Manual MOUNTING THE CONTROL CLASP. Elevator control horn both side. 1) Align the tail wheel wire so that the wire is parallel with the bottom of the rudder. The control clasp has a predrilled hole through the top of it. Slide this hole onto the tail wheel wire while sliding the clasp over the bottom of the rudder. 2) Using a ruler and a pen place a mark onto the bottom of the rudder. The back edge of the clasp should line up with this mark.
FAIRCHILD PT-19 Instruction Manual INSTALLING THE RECEIVER AND BATTERY. 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. Epoxy glue. 60mm. When balancing the airplane you may need to move the battery or receiver forward or after to achieve proper balance.
FAIRCHILD PT-19 Instruction Manual ATTACHMENT WING-FUSELAGE. FLIGHT PREPARATION. 1) Check the operation and direction of the elevator, rudder, ailerons and throttle. See pictures below: A) Plug in your radio system per the manufacturer's instructions and turn everything on. 2) Turn on the radio system, and with the trim tabs on the transmitter in neutral, center the control surfaces by making adjustments to the clevises or adjustable servo connectors. The servo arms should be centered also.
FAIRCHILD PT-19 C) The ailerons should move 3/16” up and 3/16” down from center. If the ailerons move too much, turn the adjustable control horns out away from the wing. Do the opposite if there is not enough throw. It is important that both ailerons move the same amount, both up and down. D) Once the control throws and movements are set, tubing must be added to the clevises to ensure they do not release in the air. Cut a piece of fuel line into five 1/4” long pieces.
