Seagull Models SEAGULL 40 Assembly Manual Download Page 14

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SEAGULL 40

LOW WING TRAINER.

Instruction Manual.

ATTACHMENT WING - FUSELAGE.

See picture below:

BALANCING.

1) It is critical that your airplane be bal-

anced correctly. Improper balance will cause
your plane to lose control and crash. The cen-
ter of gravity is located

9cm

back from the lead-

ing edge of the wing, measured at the wing
tip.

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

ELEVATOR-RUDDER PUSHROD

INSTALLATION.

Elevator pushrod.

Rudder pushrod.

Clevis.

Control
horn.

Antenna.

Antenna wire.

Receiver.

Battery.

Tie wrap.

Throttle.

Elevator.

Rudder.

Switch.

Wing bolt.

INSTALLING THE RECEIVER AND BATTERY.

Adjustable Servo connector.

Servo arm.

(1 PCS).

(2 PCS).

Thread locker glue.

Summary of Contents for SEAGULL 40

Page 1: ...Flying skill level Low wing Trainer Kit features Ready made minimalassembly finishingrequired Factory installedpushrod Photo illustratedstep by stepAssemblyManual Hand made Almost Ready to Fly R C Model Aircraft ASSEMBLY MANUAL Additional items required Engine 4 Channel or greater Radio Control system Glues Tools Starting Equipment Made in Vietnam SEAGULL 40 LOW WING TRAINER MS 10 Graphics and spe...

Page 2: ...ate glue accel erator cyanoacrylategluede bonder andacetone Donotletthesechemi cals come in contact with the colours onthecoveringandtheplasticparts INTRODUCTION Thank you for choosing the SEAGULL 40 LOW WING TRAINER ARTF by SEAGULL MODELS The SEAGULL 40 was designed with the intermediate advanced sport flyer in mind It is a low wing aeroplanewhichiseasytoflyandquicktoassemble Theairframeisconvent...

Page 3: ... when satisfied with its fit ineach wing half Coat both sides of one halfofthedihedralbracewith30minuteepoxy 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 Glue attach Masking tape Removecovering Wing botton Epoxy INSTALLING THE AILERON SERVOS Because the size of servos...

Page 4: ...the servo inplace using the wood screws provided with you radio system Thread Thread Wing bottom Small weight 3 Attach servo lead to the aileron servo Attach the string to the servo lead and care fully 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 Thread Electric wire String Small weight Plastic tape ...

Page 5: ... half Pen Straight line 4 Using a 1mm drill bit and the control horns as a guide drill the mounting holes through the aileron halves 5 Mount the control horns by inserting the screws through the control horn bases and aileron halves then into the mounting backplates Do not overtighten the screws or the backplates may crush the wood 6 Thread one nylon adjustable control horn onto each aileron contr...

Page 6: ... screws onto the wing sur face Gear mounting slot Landing gear wire 8 Make a 90 degree bend at the mark and cut off the excess wire leaving 10mm past the bend 9 Connect the linkage as shown and secure the control wire with a wire keeper Repeat the procedure for the other aileron servo INSTALLING THE MAIN GEAR WIRES 1 Using a modeling knife remove the covering from over the two main gear mount ing ...

Page 7: ...lot holes into the wing for the wood screws 1 5mm 3 x 10mm Landing gear wire 2 Using a modeling knife cut one length of silicon fuel line not included to 2 1 4 long 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 INSTALLING THE STOPPER ASSEMBLY 4 Carefully heat t...

Page 8: ...y in place the weighted pick up should rest about 3 8 away from the rear of the tank and move freely inside the tank The top of the vent tube should rest just below the top of the tank It should not touch the top of the tank 7 When satisfied with the alignment of the stopper assembly tighten the 3mm x 20mm machine screw until the rubber stopper ex pands and seals the tank opening Do not overtighte...

Page 9: ...tor 5 Bolt the engine to the engine mount using the four machine screws Double check that all the screws are tight before proceeding Installing steering arm as below NOSE GEAR INSTALLATION 2 5mm 3x25mm 112mm Adjust the nose gear steering arm until the arm is parallel with the fire wall Steering arm Adjustable connector ...

Page 10: ...all the switch into the precut hole in the fuselage side Use the two screws pro vided with the switch to secure it in place INSTALLING THE SWITCH Switch Install the pushrod wire as shown INSTALLINGTHESPINNER Install the spinner backplate propeller and spinner cone The spinner cone is held in place using two 3 x 15mm wood screws The propeller should not touch any part of the spinner cone If it does...

Page 11: ...stabilizer Also extend this mark down the back of the trailing edge of the stabilizer 2 Using a modeling knife carefully remove the covering from over the vertical stabilizer mounting slot in the top of the fuselage 3 Slide the stabilizer into place in the pre cut slot in the rear of the fuselage The stabi lizer should be pushed firmly against the front of the slot 4 With the stabilizer held firml...

Page 12: ...lign Double check all of your mea surements once more before the epoxy cures Hold the stabilizer in place with T pins or mask ing tape and remove any excess epoxy using a paper towel and rubbing alcohol 8 After the epoxy has fully 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 we...

Page 13: ...ouble check all of your measurements once more be fore the epoxy cures Hold the stabilizer in place with T pins or masking tape and remove any excess epoxy using a paper towel and rubbing alcohol Allow the epoxy to fully cure before proceeding CONTROL HORN INSTALLATION 1 Locate the nylon control horns nylon control horn backplates and machine screws 2 The position of elevator control horn on the l...

Page 14: ...red at the wing tip 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 ELEVATOR RUDDER PUSHROD INSTALLATION Elevator pushrod Rudder pushrod Clevis Control horn Antenna Antenna wire Receiver Battery Tie wrap Throttle Elevator Rudder Switch ...

Page 15: ...l surfaces are centered use a ruler and check the amount of the control throw in each surface The control throws should be measured at the widest point of each sur face FLIGHT PREPARATION A Check the operation and direction of the elevator rudder ailerons and throttle B Plug in your radio system per the manufacturer s instructions and turn every thing on D Check the rudder Looking from be hind the...

Page 16: ...g 2 Check every bolt and every glue joint in the SEAGULL 40 to ensure that everything is tight and well bonded 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 8 Properly balance the propeller An out of balance propeller will cause excessive vi bration which could lead to engin...

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