Seagull SEA238, Assembly Manual

Page 1: ...8 9 in 175 cm Wing area 776 6 sq in 50 1 sq dm Weight 7 7 lbs 3 5 kg Length 48 2 in 122 5 cm Engine 10cc 15cc Glow engine 61 2 stroke Motor size 1200 1500 Watt Motor and ESC Radio 4 channels with 5 servos Electric conversion Optional Graphics and specifications may change without notice ...

Page 2: ...ned to help you build a great flying aeroplane Please read this manual throughly before starting assembly of your BOWERS FLYBABY Use the parts listing below to indentify all parts INTRODUCTION WARNING KIT CONTENTS 1 2 3 3 2 4 5 6 7 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 ...

Page 3: ...LERON Note The control surfaces including the ai lerons elevators and rudder are prehinged with hinges installed but the hinges are not glued in place It is imperative that you prop erly adhere the hinges in place per the steps that follow using a high quality thin C A glue 1 Carefully remove the aileron from one of the wing panels Note the position of the hinges 2 Remove each hinge from the wing ...

Page 4: ... medium pressure trying to separate the aileron from the wing panel Use caution not to crush the wing structure Work the aileron up and down sev eral times to work in the hinges and check for proper movement Note 4 Deflect the aileron and completely satu rate each hinge with thin C A glue The ailer ons front surface should lightly contact the wing during this procedure Ideally when the hinges are ...

Page 5: ...e glued when the fin rudder assembly is attached to the fu selage INSTALL THE AILERONS CONTROL HORN Epoxy Using epoxy Install elevator joiner wire into both elevator halves Gluetheelevatorhingesinplaceusingthe sametechniquesusedtohingtheailerons Epoxy Epoxy Aileron control horn INSTALL ELEVATOR CONTROL HORN Fiberglass control horn Fiberglass control horn ...

Page 6: ...djust the size of the precut opening in the mount The notch in the sides of the mount allow the servo lead to pass through 1 Install the rubber grommets and brass collets into all servos Test fit the servos into the fuselage servo mounts 2 Secure the servos with the screws pro vided with your radio system Rudder servo Throttle servo Elevator servo THROTTLE SERVO ARM INSTALLATION Install adjustable...

Page 7: ...tch into the precut hole in the side in the fuselage 3 32 Hole Switch INSTALLING THE STOPPER ASSEMBLY 1 Using a modeling knife carefully cut off the rear portion of one of the 3 nylon tubes leaving 1 2 protruding 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 t...

Page 8: ...f the tank 6 When satisfied with the alignment of the stopper assembly tighten the 3 x 20mm ma chine screw until the rubber stopper expands and seals the tank opening Do not over tighten the assembly as this could cause the tank to split FUEL TANK INSTALLATION You should mark which tube is the vent and which is the fuel pickup when you attach fuel tubing to the tubes in the stopper Once the tank i...

Page 9: ...ould flow through easily Vent tube Fuel pick up tube Fuel fill tube ENGINE MOUNT INSTALLATION 1 Locate the items necessary to install the engine mount included with your model 4x30mm 2 Use four 4x30mm head bolts and four 4mm washers to attach the engine mount rails to the firewall Tighten the screws Make sure to use threadlock on the screws to help prevent them from vibrating loose MOUNTING THE EN...

Page 10: ...throttle pushrod tube pre drill 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 the fuel tank mount 6 Connect the Z bend in the 450mm throttle pushrod to the outer hole of the carburetor arm 7 Slide the throttle pushrod wire into the tube Position the engine between the mounts Use four M4x30mm machine screws to s...

Page 11: ... and install the servo horn perpendiular to the servo center line 9 Movethethrottlesticktotheclosedpo sition and move the carburetor to closed Use a 2 5mm hex wrench to tighten the screw that secures the throttle pushrod wire Make sure to use threadlock on the screw so it does not vibrate loose COWLING Please see below pictures Cut ...

Page 12: ... using masking tape Needle valve 3x10mm 2 Install the muffler and muffler extension onto the engine and make the cutout in the cowl for muffler clearance Connect the fuel and pressure lines to the carburetor muffler and fuel filler valve Secure the cowl to fuse lage using the M3x10mm screws ELECTRIC POWER CONVERSION 1 Locate the items neccessary to install the electric power conversion included wi...

Page 13: ...13 4 Attach the motor to the front of the electric motor box using four 4mm blind nut four M3x12mm hex head bolts to se cure the motor Please see picture shown M4x20mm 4 mm Blind nut M3x15mm 145 mm Epoxy Balsa stick Epoxy ...

Page 14: ...the leads will not interfere with the operation of the motor Tie wraps INSTALLING THE SPINNER The propeller should not touch any part of the spinner cone If it does use a sharp modeling knife and carefully trim away the spinner cone where the propel ler comes in contact with it Install the spinner backplate propeller and spinner cone INSTALLING THE AILERON SERVOS Battery Speed control ...

Page 15: ...ce it from the hatch Use a pencil to mark the mounting hole loca tions on the blocks Small weight String 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 5 Use dental floss to secure the connec tion so they cannot become unplugged 6 Secure the servo to the aileron hatch using Phillips screwdriver and the screws provided with the s...

Page 16: ... wing at the servo location and use the tape to attach it to the servo extension lead Pull the lead through the wing and remove the string 9 Set the aileron hatch in place and use a Phillips screw driver to install it with four wood screws M2x10mm ...

Page 17: ...ylon Snap keeper Bend at the mark 1 The blind nuts for securing the land ing gear are already mounted inside the fuselage 2 Using the hardware provided mount the main landing gear to the fuselage 3 Place the fuselage inverted on the workbench in a suitable stand Set the landing gear in place and use a screw drive to secure the landing gear to the fu selage using bolts M4x20mm and wash ers Make sur...

Page 18: ...Bowers Flybaby 18 M4x20mm Collar M4x20mm Thread locker glue Collar Collar ...

Page 19: ...tabilizer at the trailing edge and place a mark Use a tri angle 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 2 Using a modeling knife carefully re move the covering at mounting slot of horizontal stabilizer both side of fuse lage Draw center line Cut ...

Page 20: ...x up a generous amount of 30 Minute Epoxy Apply a thin layer to the top and bottom of the stabi lizer mounting area and to the stabilizer mounting platform sides in the fuselage Slide the stabilizer in place and realign Double check all of your measurements once more before the epoxy cures Hold thestabilizerinplacewithT pinsormask ing tape and remove any excess epoxy us ing a paper towel and rubbi...

Page 21: ...he slot in the top of the fuselage The rear edge of the stabilizer should be flush with the rear edge of the fuselage and the lower rudder hinge should engage the precut hinge slot in the lower fuselage The bottom edge of the stabi lizer should also be firmly pushed against the top of the horizontal stabilizer Fill Epoxy Remove covering Hinge slot 4 Slide the vertical stabilizer back in place Usin...

Page 22: ...ck all of your measurements 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 epoxy to fully cure before proceeding C A glue Hinge ELEVATOR PUSHROD INSTALLATION Elevator control horn 1 Thread one clevis and M2 lock nut on to the elevator control rod Thread the clevis on until it is...

Page 23: ...Instruction Manual 23 8mm Nylon Snap Keeper M2 clevis M2 lock nut 8mm RUDDER PUSHROD INSTALLATION Repeat steps as same as steps done for elevator Pen 8mm ...

Page 24: ...Bowers Flybaby 24 INSTALL BRACING WIRE AND METAL BRACKET AT THE TAIL TOP VIEW ...

Page 25: ...Instruction Manual 25 BOTTOM VIEW MOUNTING THE TAIL WHEEL Locate items necessary to install tail wheel 3x25 mm Aluminum tail landing gear ...

Page 26: ...Bowers Flybaby 26 INSTALL FIBERGLASS HORN Epoxy Springs M3x10mm ...

Page 27: ...ition the pilot figure on the cock pit floor as shown Use epoxy to glue the base of the pilot figure please see pic tures as shown 2 If all the decals are not precut please use scissors or a sharp hobby knife to cut the decals from the sheet Please be cer tain the model is clean and free from oily fingerprints and dust Position decal on the model where desired using the pho tos on the box and aid ...

Page 28: ...y 28 Receiver Battery Battery Insert two wing panels as pictures below Wing tube Wing bolt TOP VIEW INSTALL BRACING WIRE AND METAL BRACKET AT THE WINGS ATTACHMENT WING FUSELAGE Attach the aluminum tube into fuselage ...

Page 29: ...Instruction Manual 29 BOTTOM VIEW Do the same way with another half wing ...

Page 30: ...Bowers Flybaby 30 Insert canopy hatch on fuselage as pic tures below Do the same way with another half wing ...

Page 31: ...difficult to slow down for landing Moving the balance aft makes the model more agile with a lighter and snappier feel In any case please start at the loca tion we recommend With the wing attached to the fuselage all parts of the model installed ready to fly and empty fuel tanks hold the mod el at the marked balance point with the stabilizer level Lift the model If the tail drops when you lift the ...

Page 32: ...Bowers Flybaby 32 ...

Page 33: ... the right The right aileron should move up and the other aileron should move down If it does not flip the servo reversing switch on your transmitter to change the direction 1 Completely charge your trans mitter and receiver batteries before your first day of flying 2 Check every bolt and every glue joint in the BOWERS FLYBABY to en sure that everything is tight and well bonded 3 Double check the ...