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Seagull Models Extra 300, Assembly Manual

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Seagull Models Extra 300 Assembly Manual Download Page 7

www.seagullmodels.com

7

C/A glue.

Front view.

COWLING INSTALLATION.

!

1) Slide the fiberglass cowl over the en-

gine and line up the back edge of the cowl with
the marks you made on the fuselage then trim
and cut.

Rotor shaft.

Motor.

Blind nut.

Trim and cut.

3x10mm.

Summary of Contents for Extra 300

Page 1: ...nual Made in Vietnam Specifications WingSpan 43in 109cm WingArea 367sqin 23 7sqdm Weight 20 21oz 566 595g Length 38 4in 97 5cm Radio 4channelwith4sub microservos Motorsize Park450toPark480Outrunner Need to Complete Speed Control 35A to 40A Brushless Recommended Battery 3 cell 11 1V 1320mAh to 2100mAh Li Po ASSEMBLY MANUAL ...

Page 2: ...e that this aeroplane is not a toy and if assembled or used incorrectly it is capable of causing injury to people or property WHEN YOU FLY THIS AEROPLANE 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...

Page 3: ...d properly before gluing This will ensure proper as sembly as the EP EXTRA 300 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 However they are not tolerant of many harsh chemi cals including the following paint thinner cyano acrylate glue accel erator cyanoacrylategluede bonder and acetone Do not let these chemi ...

Page 4: ...hinge with thin C A glue The ailerons front surface should lightly contact the wing during this procedure Ideally when the 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 The hinge is constructed of a special material that allows the C A to ...

Page 5: ...ng panel Use caution not to crush the wing structure 7 Repeat this process with the other wing panel securely hinging the aileron in place 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 HINGING THE RUDDER Glue the elevator hinges in place using the same tectniques used to hinge the ailerons Glue the rudde...

Page 6: ...mount the main landing gear to the fuselage INSTALLING THE MAIN LANDING GEAR A drop of C A glue on the wheel collar screws will help keep them from coming lose during operation Repeat the process for the other wheel C A glue 3 X 12mm INSTALLING ELECTRIC MOTOR Park 450 to Park 480 ...

Page 7: ...A glue Front view COWLING INSTALLATION 1 Slide the fiberglass cowl over the en gine and line up the back edge of the cowl with the marks you made on the fuselage then trim and cut Rotor shaft Motor Blind nut Trim and cut 3x10mm ...

Page 8: ...de up Using a modeling knife remove the covering at servo tray 2 While keeping the back edge of the cowl flush with the marks align the front of the cowl with the crankshaft of the motor The front of the cowl should be positioned so the crankshaft is in nearly the middle of the cowl opening Use the spinner backplate as a guide Hold the cowl firmly in place using pieces of masking tape 3x10mm 3 Sli...

Page 9: ...ught 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 Secure the servos with the screws pro vided with your radio system Straigh line 4 Using a ruler pen to draw a straight line as pictures below Pen 5 Insert aileron control horn to the aileron Attach the micro control connector to the servo arms Be sure...

Page 10: ...e precut hole in the side in the fuselage Right side Elevator servo Left side Rudder servo HORIZONTALSTABILIZER 1 Using a ruler and a pen locate the centerline of the horizontal stabilizer at the trail ing 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 Remove co...

Page 11: ...e When cutting through the covering to remove it cut with only enough pressure to only cut through the covering itself Cutting into the balsa structure may weaken it 6 Using a modeling knife carefully re move the covering that overlaps the stabilizer mounting platform sides in the fuselage Re move the covering from both the top and the bottom of the platform sides 4 With the stabilizer held firmly...

Page 12: ... only cut through the covering itself Cutting into the balsa structure may weaken it 5 Slide the vertical stabilizer back in place Using a triangle check to ensure that the vertical stabilizer is aligned 90º to the hori zontal stabilizer 90º Vertical Stabilizer Horizontal Stabilizer Pen C A glue 2 Slide the vertical stabilizer into the slot in the top of the fuselage The rear edge of the stabilize...

Page 13: ... wing See pictures below Rudder control horn Elevator control horn PUSHROD INSTALLATION Pushrod install as same as method of pushrod wing See pictures below Pushrod Rudder servo Elevator servo MOUNTING THE TAIL WHEEL BRACKET See pictures below 2x12mm CONTROL HORN INSTALLATION ...

Page 14: ...sert two wing panels as pictures below ATTACHMENT WING FUSELAGE Attach the aluminium tube into fuselage INSTALLING THE BATTERY RECEIVER Battery Receiver See pictures below Battery tray Tie wrap M2x8mm Tie wrap or rubber band Expoy glue ...

Page 15: ...r hub similar to those offered by Harry Higley When balanced correctly the airplane should sit level or slightly nose down when you lift it up with your fingers 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 CONTROL THROWS 1 We hig...

Page 16: ... does not flip the servo reversing switch on your transmitter to change the direction 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 ensure the control surfaces are moving the proper amount for both low and high rate settings 8 Properly balance the propeller An out of balance propeller will ca...

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