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Seagull Models DECATHLON ARTF, Assembly Manual

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Seagull Models DECATHLON ARTF Assembly Manual Download Page 20

DECATHLON _ 

CODE SEA 86

.

  

                                                                

Instruction Manual

20

M3x15mm.

 

  

  

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 locate

 

8.7cm

 back from the

leading edge of the wing, measured at wing
tip.

BALANCING.

1

3

3

2

1

Summary of Contents for DECATHLON ARTF

Page 1: ...ng Photo illustratedstep by stepAssemblyManual Specifications Wing span 70 9 in 180cm Wing area 837 sq in 54 sq dm Approximate flying weight 7 5 8 8 lbs 3 4 4 0kg Length 47 6in 121cm Recommended engine size 75cu in 2 stroke 91cu in 4 stroke Radio System required 4 channels with 6 servos Flying skill level Intermediate advanced ASSEMBLY MANUAL MS 86 ...

Page 2: ... YOU ASSUME ALL RISK RESPONSIBILITY If you are inexperienced with basic R C flight we strongly recommend you contact your R C supplier 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 ADDITI...

Page 3: ... 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 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 wo...

Page 4: ...es below Work the aileron up and down several times to work in the hinges and check for proper movement Note 5 Turn the wing panel over and deflect the aileron in the opposite 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 h...

Page 5: ...N ELEVATOR CONTROL HORN M3 LOCK NUT ALUMINUM WASHER ALUMINUM WASHER CONTRONLHORN M3 SCREW 16mm Epoxy Wing Epoxy Wing Hinge Install the elevator control horn using the same method as with the aileron control horns 2 sets 3x35mm Wing Aileron Installing the turnbuckle for tail strut of hori zontal fin as same as pictures below Horizontal fin bottom Turnbuckle Tail fin bottom 2 sets 3x40mm ...

Page 6: ...sing the same tectniques used aileron control horn See picture below 2 sets 3x35mm EPOXY Rudder control horn Rudder FUSELAGE RUDDER CONTROL HORN Elevator control horn CONTRONL HORN M3 SCREW M3 LOCK NUT ALUMINUM WASHER EPOXY FUSELAGE ALUMINUM WASHER Rudder Aluminum Washer 16mm CONTRONL HORN M3 M3LOCKNUT Epoxy Epoxy Aluminum Washer Horizontal Stabilizer Horizontal Stabilizer ...

Page 7: ...tank It may be necessary to remove some of the flashing around the tank opening using a modeling knife If flashing is present make sure none falls into the tank 5 With the stopper assembly in place the weighted pick up should rest 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 tan...

Page 8: ...t 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 C A glue attched Fuel tank Plastic tape Balsa Block 2 Follow diagram below for wheel pant installation wheel collar wheel Axle Washer M3 wheel Pant wheel M3 M3 wheel collar nut Axle Washer 1 Assemble and mounting the w...

Page 9: ...ll help keep them from coming lose during operation Repeat the process for the other wheel Landing Gear wheel Pant Locker glue MOUNTING THE ENGINE 3 Remove the engine Using an drill bit drill the mounting holes through the engine mount at the four locations marked 1 Place your engine onto the engine mount Adjust the engine is centered of the edges of the engine case 2 When you are satisfied with t...

Page 10: ...hine Screw 3x10mm 1 5mm were needlevalve Trim and cut Trim and cut Pushrod wire Trim and cut 4 Bolt the engine to the engine mount using the four machine screws Double check that all the screws are tight before proceeding 4 2 mm diameter Machine Screw 4x30mm Pushrod wire ...

Page 11: ... size of servos differ you may need to adjust the size of the precut open ing in the mount The notch in the sides of the mount allow the servo lead to pass through Switch INSTALLING THE SWITCH Install the switch into the precut hole in the side of fuselage Adjustable Servo connector Servo arm Loctite secure 1 pcs THROTTLE SERVO ARM INSTALLATION Install adjustable servo connector in the servo arm E...

Page 12: ... only enough pressure to only cut through the covering itself Cutting into the balsa structure may weaken it Throttle servo arm Elevator servo Elevator servo Rudder servo Epoxy Hinge slot INSTALLING THE HORIZONTAL STABILIZER INSTALLING THE VERTICAL STABI Hinge slot Remove covering Remove covering Epoxy Draw center line ...

Page 13: ... top of the horizontal stabilizer When cutting through the covering to re move it cut with only enough pressure to only cut through the covering itself Cutting into the balsa structure may weaken it Epoxy 90º Vertical Stabilizer Horizontal Stabilizer Epoxy C A glue Hinge INSTALLING THE AILERON SERVOS String Small weight Servos Small weight Thread Electric wire Aileron servo ...

Page 14: ... it though the wing INSTALLATION THE PUSHROD Wing Aileron String Small Weight Wing Wing rib String Small Weight M2 lock nut M2 clevis 75mm Repeat the procedure for the other wing Wing Aileron 110mm Aileron Aileron Elevator control horn Rudder control horn M2 lock nut ELEVATOR RUDDER PUSHROD INSTALLATION ...

Page 15: ...r Rudder Attach to servo arm in fuselage Attach to elevator rudder control horn M2 Lock nut M2 clevis Rudder pushrod Control horn Elevator Pushrod Metal clevis Elevator pushrod M2 lock nut 2 Install servos arm to servos Notice the position of the servo arms on the servos See picture below Rudder pushrod ...

Page 16: ...l 16 70mm 3x10mm Alumium trap Fuselage bottom Bottom 1 2 2 INSTALLING TAIL STRUT SUPPORT The tail strut system assembly follow pic tures below Elevator Elevator Rudder Throttle 3x10cm 2pcs Alumium trap 1 2 2 1 175mm 7mm Snap keeper Bottom 70mm ...

Page 17: ...www seagullmodels com 17 1 2 2 2 1 1 1 2 2 1 MOUNTING THE TAIL WHEEL See pictures below M2 x 20mm M3 x 12mm ...

Page 18: ...he fuselage and secure it to the bot tom of fuselage using a plastic tape INSTALLING THE BATTERY RECEIVER Battery Receiver 1 Plug the six servo leads and the switch lead into the receiver Plug the battery pack lead into the switch also ATTACHMENT WING FUSELAGE Attach the aluminium tube into fuselage Insert two wing panels as pictures below Antenna 3x50mm Wing tube Aluminum tube Plastic Screw C A g...

Page 19: ...www seagullmodels com 19 Parts requirement See pictures below INSTALLING THE WING STRUT M3 x 15mm M3x50mm M3x50mm 5mm diameter pilot horn Turnbuckle 60mm 85mm ...

Page 20: ...3x15mm 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 locate 8 7cm back from the leading edge of the wing measured at wing tip BALANCING 1 3 3 2 1 ...

Page 21: ...able servo connectors The servo arms should be centered also To correct this move the battery and receiver forward orif this is not possible stick weight onto the firewall When balanced correctly the airplane should sit level or slightly nose down when you lift it up with your fingers 1 We highly recommend setting up the DECATHLON using the control throws listed at right We have listed control thr...

Page 22: ...our first day of flying 2 Check every bolt and every glue joint in the DECATHLON 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 5 If your radio transmitter is equipped with dual rate switches double check that they are on the...

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