Seagull Models EXTRA EA 300L Assembly Manual Download Page 5 | Manualshive

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HINGING THE RUDDER.

Glue the rudder hinges in place using the

same techniques used to hinge the ailerons.

Hinge.

LEDLIGHT

INSTALL THE AILERONS CONTROL

HORN.

Locate the hardware necessary to install the
control horns for the ailerons.

Aileron Control Horn

Assembling the ledlight as shown below

pictures.

C/A glue

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Summary of Contents for EXTRA EA 300L

Page 1: ...17 7 sq in 33 4sq dm Weight 6 6lbs 3 0kg Length 44 4in 112 9cm Engine 0 46cu in 2 stroke 0 62 cu in 4 stroke Radio 4channelswith 5servos Electricconversion optional MS 199 Graphics and specifications may change without notice ASSEMBLY MANUAL SIZE 46 62 ...

Page 2: ...manual is designed to help you build a great flying aeroplane Please read this manual thoroughly before starting assembly of your EXTRA EA300L Use the parts listing below to identify all parts WARNING Please be aware 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 RESPONSIBIL...

Page 3: ...y adhere the hinges in place per the steps that follow using a high quality thin C A glue 2 Remove each hinge from the wing panel and aileron and place a T pin in the center of each hinge Slide each hinge into the aileron until the T pin is snug against the aileron This will help ensure an equal amount of hinge is on either side of the hinge line when the aileron is mounted to the wing panel HINGI...

Page 4: ...eron and completely saturate each hinge with thin C A glue The ailerons front surface should lightly contact the wing during this procedure Ideally when the 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 wood structure of the wing panel and aileron hinges are glued in place a 1 64 gap or less wi...

Page 5: ...s in place using the same techniques used to hinge the ailerons Hinge LEDLIGHT INSTALL THE AILERONS CONTROL HORN Locate the hardware necessary to install the control horns for the ailerons Aileron Control Horn Assembling the ledlight as shown below pictures C A glue ...

Page 6: ... elevator control horn using the same method as same as the aileron control horns Epoxy Epoxy Elevator Control Horn INSTALL THE RUDDER CONTROL HORN Repeat steps to install the rudder control horn as same as steps done for ailerons Epoxy Rudder control horn Elevator Epoxy Rudder Control Horn ...

Page 7: ... ASSEMBLY 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 Thread locker glue 3 Carefully bend the second nylon tube up at a 45º angle This tube is the vent tube 5 With the stopper assembly in place the weighted pick up should rest away from the rear of the tank and move freely inside t...

Page 8: ...bing to the tubes in the stopper Once the tank is installed inside the fuselage it may be difficult to determine which is which 6 When satisfied with the alignment of the stopper assembly tighten the 3 x 20mm machine screw until the rubber stopper ex pands and seals the tank opening Do not overtighten the assembly as this could cause the tank to split FUEL TANK INSTALLATION Fuel Tank Rubber C A gl...

Page 9: ... the landing gear in place and use a screwdrive to secure the landing gear to the fuselage using bolts M4x20mm and washers Make sure to use the threadlock on the bolts so they don t vibrate loose C A glue Cut Cut 2 Follow diagram below for wheel pant installation Use a drill and 8mm drill bit to drill a hole in the wheel pants 14mm 8mm Drill a hole Thread locker glue M4x20mm C A glue M4x20mm WHEEL...

Page 10: ...r M3 6 Slide the threaded end of the axle through the hole in the bottom of the landing gear leg Use a washer and locknut to tighten the axle to the landing gear Make sure to use threadlock on the nut so it won t vibrate loose in flight as shown 7 Tighten the setcrews using a hex wrench to secure the collars on the axle over the flat spot to retain the wheel as shown INSTALLING THE FUSELAGE SERVOS...

Page 11: ...rvo arm Loctite secure 1 PCS 3 32 Hole INSTALLING THE SWITCH Install the switch into the precut hole in the side in the fuselage Throttle Rudder Elevator Switch Trim and cut MOUNTING THE ENGINE 1 Position the engine with the drive washer 110mm forward of the firewall as shown 110mm 2 Use a pin drill and 2mm drill bit to drill a small indentation in the mount for the engine mounting screw ...

Page 12: ... engine to the mount as shown 5 Slide the pushrod tube in the firewall and guide it through the fuel tank mount Use medium C A to glue the tube to the firewall and Pushrod wire Machine screw M3x25mm 8 Reinstall the servo horn by sliding the connector over the pushrod wire Center the throttle stick and trim and install the servo horn perpendicular to the servo center line 9 Move the throttle stick ...

Page 13: ...e 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 Because of the size of the cowl it may be nec essary to use a needle valve extension for the high speed needle valve Make this out of suf ficient length 1 5mm wire and install it into the end of th...

Page 14: ...rews ELECTRIC POWER CONVERSION Model size 46 52 size models Motor 35mm 830 rev per volt Propeller 12x6 13x6 ESC 60A Lipo Batteries 4 cell 4200mA 2 Attach the electric motor box to the firewall suitable with the cross lines drawn on the electric motor box and firewall Using epoxy and balsa stick to secure the motor box to the firewall Please see pictures below 1 Locate the items neccessary to insta...

Page 15: ...lywood battery tray to the fuselage Tighten the screws using machine screws M3x15mm to secure the tray in position Nut M3 4mm 110mm Epoxy speed control 5 Attach the speed control to the side of the motor box using two sided tape and tie wraps Connect the appropriate leads from the speed control to the motor Make sure the leads will not interfere with the operation of the motor Epoxy Speed Control ...

Page 16: ...tween the mounting blocks and space it from the hatch Use a pencil to mark the mounting hole locations on the blocks 3 Use drill bit in a pin vise to drill the mouting holes in the blocks INSTALLING THE AILERON FLAP SERVOS Servos Small weight Thread 1 Using a small weight Weighted fuel pick up works well and string feed the string through the wing as indicated Because the size of servos differ you...

Page 17: ...d with the servo 5 Use dental floss to secure the connection so they cannot become unplugged 7 Apply 1 2 drops of thin C A to each of the mounting tabs Allow the C A to cure without using accelerator 4 Apply 2 3 drops of thin C A to each of the mounting holes Allow the C A to cure without using accelerator C A glue ...

Page 18: ... 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 Snap keeper Servo arm 8mm Snap keeper M2 lock nut Metal clevis Bend at the mark Nylon Snap Keeper Fuel Tubing ...

Page 19: ...ps of the wing 3 Put the stabilizer into place in the position of the fuselage 2 Using a modeling knife carefully remove the covering at mounting slot of horizontal stabilizer 6 With the stabilizer held firmly in place use a pen and draw lines onto the stabilizer where it and the fuselage sides meet Do this on both the right and left sides and top and bottom of the stabilizer Remove covering When ...

Page 20: ... and to the stabilizer mounting platform sides in the fuselage Putting the stabilizer in place and realign Double check all of your measure ments 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 Epoxy Epoxy Epoxy 10 After the epoxy has fully cured re move the masking tape or T pins used to...

Page 21: ...ot tom and top edges of the filler block and to the lower hinge also Set the stabilizer in place and realign Double check all of your measure ments once more before 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 ep oxy to fully cure before proceeding 90º Vertical Stabilizer Horizontal Stabilizer...

Page 22: ...al 22 M2 lock nut M2 clevis RUDDER PUSHROD HORN INSTALLATION 8mm M2 lock nut M2 clevis Nylon Snap Keeper 8 mm M2 lock nut M2 clevis 4 Elevator and rudder pushrods assembly as pictures below 460mm Cut 8mm M 2 Clevis Fuel Tubing Hex Nut 8 mm ...

Page 23: ...Tubing Hex Nut 2 Install servos arm to servos Notice the position of the servo arms on the servos See picture below Locate items necessary to install tail wheel Hex Nut Fuel Tubing M2 Clevis MOUNTING THE TAIL WHEEL 3 x 20mm 3x25 mm Aluminum tail landing gear ...

Page 24: ...n the canopy floor as show Locate the oval shaped on the canopy floor and remove the covering Use epoxy to glue this into the base of the pilot figure and glue the cockpit panel in place with C A glue please see pictures as shown Apply a bead of canopy glue around the inside edge of the canopy Position the canopy onto the hatch Use tape to hold the canopy secure until the glue fully cures 4 Positi...

Page 25: ...e certain the model is clean and free from oily fingerprints and dust Position decal on the model where desired using the photos on the box and aid in their location 1 Plug the five servo leads and the switch lead into the receiver Plug the battery pack lead into the switch also 3 Route the antenna in the antenna tube inside the fuselage and secure it to the bottom of fuselage using a plastic tape...

Page 26: ...age The balance point is located 75 mm back from the leading edge of the wing at the wing root This is the balance point at which your model should balance for your first flights Later you may wish to experiment by shifting the balance up to 10mm forward or back to change the flying characteristics Moving the balance forward may improve the smoothness and arrow like tracking but it may then requir...

Page 27: ...o reversing switch on your transmitter to change the direction Check the operation and direction of the elevator rudder ailerons and throttle FLIGHT PREPARATION 7 Check the receiver antenna It should be fully extended and not coiled up inside the fuselage 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 directi...

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