Seagull Models Fairchild PT-19 Instruction Manual Download Page 1 | Manualshive

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Made in Vietnam.

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 minimum.

Specifications:

INSTRUCTIONS FOR FINAL ASSEMBLY

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Summary of Contents for Fairchild PT-19

Page 1: ... 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 minimum Specifications INSTRUCTIONS FOR FINAL ASSEMBLY ...

Page 2: ...ier and join your local R C Model Flying Club R C Model Flying Clubs offer a variety of training procedures designed to help the new pilot on his way to successful R C flight They will also be able to advise on any insurance and safety regulations that may apply ADDITIONAL ITEMS REQUIRED 46 52 2 stroke engine 52 4 stroke engine 4 channel radio with six servos Glow plug to suit engine Propeller to ...

Page 3: ...or cyanoacrylategluede bonder andacetone Donotletthesechemi cals come in contact with the colours onthecoveringandtheplasticparts The control surfaces including the ailerons elevators and rudder are prehinged with hinges installed but the hinges are not glued in place It is imperative that you properly adhere the hinges in place per the steps that follow using a high quality thin C A glue 1 Carefu...

Page 4: ...ite direction from the opposite side Apply thin C A glue to each hinge making sure that the C A penetrates into both the aileron and wing panel 6 Using C A remover debonder and a paper towel remove any excess C A glue that may have accumulated on the wing or in the aileron hinge area The hinge is constructed of a special material that allows the C A to wick or penetrate and distribute throughout t...

Page 5: ... poursomeepoxyintothedihedral boxinonewingpanel Makesureyoucoverthe top and bottom as well as the sides of the dihedral brace Use enough epoxy to fill any gaps Glue the rudder hinges in place using the same tectniques used to hinge the ailerons HINGING THE RUDDER Carefully slide the two wing halves together and firmly press them together allowing the excess epoxy to run out There should not be any...

Page 6: ...and brass collets onto the aileron servo Test fit the servo into the aileron servo mount 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 Remove covering Remove covering Glue attach Masking tape 3 Tie a weight such as the fuel tank pickup to a piece of string Carefully feed ...

Page 7: ...rvo lead to the wing to prevent it from falling back into the wing 5 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 Repeat the procedure for the other wing half String String Servo wire Plastic tape AILERON LINKAGE 1 Using a ruler pen to draw a...

Page 8: ...rvo arm hole 2 Locate the two nylon control horns two nylon control horn backplates and four machine screws 3 Position the aileron horn on the bottom side of aileron The clevis attachment holes should be positioned over the hinge line 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 5 Mount the ...

Page 9: ...de ends of the wire 4 Using the two landing gear straps as a guide mark the locations of the four 3mm x 10mm mounting screws onto the wing sur face Traps 6 Reinstall the gear wire and install the straps using the four 3mm x 10mm wood screws Tighten the screws completely to secure the gear wire in place INSTALLING THE MAIN GEAR WHEELS 2 Slide one wheel onto each axle and push them up against the wh...

Page 10: ...ing 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 3 Carefully bend the second nylon tube up at a 45º angle This tube is the vent tube To set the angle of the vent tube use a lighter or heat gun to heat the tube do not me...

Page 11: ...uel Tank 3 x 25mm 2 Bolt the engine to the engine mount using the four machine screws Double cheek that all the screws are tight before proceeding Pushrod wire 115mm 3 Attach the Z Bend in the pushrod wire to the throttle arm on the carburetor You will need to remove the throttle arm from the car buretor to be able to attach the Z bend When complete reattach the throttle arm to the car buretor Blo...

Page 12: ...e high speed needle valve Make this out of sufficient length 1 5mm wire and install it into the end of the needle valve Secure the wire in place by tightening the set screw in the side of the needle valve 6 Remove the cowl using a 2 5mm drill bit Enlarging the holes through the cowl will prevent the fiberglass from splitting when the mounting screws are installed 9 Install the muffler and muffler ...

Page 13: ...ottle servos Test fit the servos into the preinstalled servo tray Because the size of servos dif fer 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 Install servos arm to servos Notice the po sition of the servo arms o...

Page 14: ...sking tape Align the horizontal stabilizer with the wing When viewed from the rear the hori zontal stabilizer should be level with the wing If it is not level use sandpaper and sand down the high side of the stabilizer mounting plat form until the proper alignment is achieved The tips of the stabilizer should also be equal distance from the tips of the wing 5 When you are satisfied with the align ...

Page 15: ...ly cured re move 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 Hinge Hinge Slot 3 While holding the vertical stabilizer firmly in place use a pen and draw a line on each side of the vertical stabilizer ...

Page 16: ... to the hori zontal stabilizer 90º Vertical Stabilizer Horizontal Stabilizer CONTROL HORN INSTALLATION 1 Locate the two nylon control horns two nylon control horn backplates and four machine screws 2 Position the elevator horn on the right and left side of elevator The clevis attach ment holes should be positioned over the hinge line 3 Using a 1 5mm drill bit and the control horns as a guide drill...

Page 17: ...n C A Hold the clasp in place until the glue com pletely cures Secure by 1 machine screw 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 You may find it necessary to bend the tail wheel wire down slightly so it lines up with the clasp without binding 1 Align the tail wheel wire so that the wire is parallel with the botto...

Page 18: ...ll cause your plane to lose control and crash The cen ter of gravity is located 6 5cm 7 5cm back from the leading edge of the wing measure at the wing tip Balance the PT 19 upside down with the fuel tank empty BALANCING CONTROL THROWS 1 We highly recommend setting up the PT 19 using the control throws listed be low We have listed control throws for both initial test flying sport flying and aerobat...

Page 19: ... halves should move 3 8 up and 3 8 down from center If they move too far turn the adjustable control horns out away from the elevator halves Do the oppo site if there is not enough throw Both elevator halves should also travel the same amount throughout their total movement 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 ...

Page 20: ...excessive vi bration which could lead to engine and or air frame failure 3 Double check the balance of the air plane Do this with the fuel tank empty 4 Check the control surfaces All should move in the correct direction and not bind in any way 5 If your radio transmitter is equipped with dual rate switches double check that they are on the low rate setting for your first few flights 6 Check to ens...

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