Seagull Models SPORT CRUISER, Assembly Manual

Page 1: ...ce MS 148 ASSEMBLY MANUAL Specifications Wingspan 70 9in 180cm Wingarea 844 8sq in 54 5sqdm Weight 9 7 10 6lbs 4 4 4 8kg Length 49 7in 126 2cm Engine 0 75 0 95cu in 2 stroke 0 91 1 25cu in 4 stroke Radio 6channelswith7 servos Electricconversion optional ...

Page 2: ...designed to help you build a great flying aeroplane Please read this manual thoroughly before starting assembly of your SPORT CRUISER 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 RESPONSIBILITY If yo...

Page 3: ... Set KIT CONTENTS S HINGING THE FLAP Hinge T pin The control surfaces including the ailerons elevators and rudder are prehinged with hinges installed but the hinges are not glued in place It is imperative that you properly adhere the hinges in place per the steps that follow using a high quality thin C A glue Note 1 Carefully remove the flap from one of the wing panels Note the position of the hin...

Page 4: ...inge 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 flap hinges are glued in place a 1 64 gap or less will be maintained throughout the lengh of the flap to the wing panel hinge line Note 7 Repeat this process with the other wing panel securely hinging the flap in plac...

Page 5: ...gap of 1 64 or less should be maintained between the wing panel and aileron Hinge T pin C A glue 8 After both ailerons are securely hinged firmly grasp the wing panel and aileron to make sure the hinges are securely glued and cannot be pulled out Do this by carefully applying medium pressure trying to separate the aileron from the wing panel Use caution not to crush the wing structure 7 Repeat thi...

Page 6: ...nge the ailerons HINGING THE RUDDER Glue the rudder hinges in place using the same techniques used to hinge the ailerons Hinge Aileron control horn INSTALL THE AILERONS CONTROL HORN Epoxy Epoxy Install the flap control horn using the same method as same as the aileron control horns INSTALL FLAP CONTROL HORN Fiberglass control horn Fiberglass control horn ...

Page 7: ... Rudder control horn Thread locker glue ENGINE MOUNT INSTALLATION 1 Locate the items necessary to install the engine mount included with your model 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 4x30mm Fiberglass control horn Fiberglass control ...

Page 8: ...pands and seals the tank opening Do not overtighten the assembly as this could cause the tank to split 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 is installed inside the fuselage it may be difficult to determine which is which FUEL TANK INSTALLATION 7 Slide the fuel tank into the fuselage Guide the lines...

Page 9: ...e fuselage INSTALLING THE FUSELAGE SERVOS Throttle servo Elevator servo Rudder servo THROTTLE SERVO ARM INSTALLATION Install adjustable servo connector in the servo arm as same as picture below Adjustable Servo connector Servo arm Loctite secure 1 PCS Throttle servo arm Elevator servo arm Rudder servo arm 1 Install the rubber grommets and brass collets onto the throttle servo Test fit the servo in...

Page 10: ...ts as shown in the following pictures WHEEL AND WHEEL PANTS Wheel Collar Axle Wheel Nut Wheel Pant Landing Gear Nut 2 Washer Lite Plywood block wheel collar wheel Axle Washer M3 M3 wheel Pant wheel M3 M3 wheel collar nut Axle Washer INSTALLING THE SWITCH 3 32 Hole Install the switch into the precut hole in the side in the fuselage Trim and cut Switch ...

Page 11: ...o the fuselage INSTALLING THE MAIN LANDING GEAR 3 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 4x20 mm 145mm MOUNTING THE ENGINE 1 Position the engine with the drive washer 150mm forward of the firewall as shown 2 Use a pin drill and 4mm drill bit to drill a small indentation in the mount for the engine m...

Page 12: ... engine between the mounts Use four M4x30mm machine screws to secure the engine to the mount as shown Machine screw M4x30mm Pushrod wire 9 Move the throttle stick to the closed position 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 9 3 Use a drill to drill th...

Page 13: ...13 www seagullmodels com 2mm 4mm 8 4 4 8 4 5 6 7 6 7 M3x6mm ...

Page 14: ...trim and cut as shown m2 9 Screw 2 Install landing gear at the top Fuselage Trim and cut Trim and cut 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 the needle valve Secure the wire in place by tightening the set screw in the side of the needle valve ...

Page 15: ...align the front of the cowl with the crankshaft of the engine 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 2 Attach the electric motor box to the firewall suitable with the cross lines drawn on the electric motor box and firewall Using epoxy an...

Page 16: ... machine screws M3x15mm to secure the tray in position Epoxy M4x15mm Epoxy 150mm 5 2mm M3 x 15mm Battery 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 Speed control ...

Page 17: ...precut open ing in the mount The notch in the sides of the mount allow the servo lead to pass through 1 Using a small weight Weighted fuel pick up works well and string feed the string through the wing as indicated 3 Use drill bit in a pin vise to drill the mouting holes in the blocks 4 Apply 2 3 drops of thin C A to each of the mounting holes Allow the C A to cure without using accelerator 5 Use ...

Page 18: ...he 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 6 Secure the servo to the aileron hatch using Phillips screwdriver and the screws provided with the servo 7 Apply 1 2 drops of thin C A to each of the mounting tabs Allow the C A to cure without using accelerator ...

Page 19: ...o install it with four wood screws AILERON PUSHROD HORN INSTALLATION M3 lock nut M3 clevis 80mm 100mm Wing Aileron M2 lock nut INSTALLING THE FLAP SERVO Repeat the procedure for the aileron servo Wing Flap M2 lock nut Aileron Wing Aileron Repeat the procedure for the other aileron servo Wing ...

Page 20: ...d 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 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 6 Using a modeling knife carefully re move the cove...

Page 21: ...ute Epoxy Apply a thin layer to the mounting slot and to bottom of the vertical sta bilizer mounting area Apply epoxy to the bot 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 ...

Page 22: ...l the elevator control horn using the same method as with the aileron control horns 2 Position the elevator control horn on the both side of elevator 4 Elevator and rudder pushrods assembly as pictures below 3 Thread one clevis and M2 lock nut on to each elevator control rod Thread the horns on until they are flush with the ends of the con trol rods Control horn M2 lock nut Metal clevis Elevator p...

Page 23: ...nstall the plastic parts included with your models 2 Position the plastic parts onto the canopy and fuselage and apply C A glue and hold the plastic parts secure until the glue fully cures Please see pictures below C A glue 3 Position the pilot figure on 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 fig...

Page 24: ...d battery pack in the protective foam rubber to protect them from vibration Insert two wing panels as pictures below APPLY THE DECALS 1 If all the decals are precut and ready to stick Please be 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 2 If all the decals are not precut please ...

Page 25: ...flying characteristics Moving the balance forward may improve the smoothness and arrow like tracking but it may then require more speed for take off and make it more 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 location we recommend With the wing attached to the fuselage all parts of the model ...

Page 26: ... If it does not flip the servo re versing switch on your transmitter to change the direction E From behind the airplane look at the aileron on the right wing half Move the aileron stick to the right The right aileron should move up and the other aileron should move down If it does not flip the servo re versing switch on your transmitter to change the direction C Check the rudder Looking from behin...