RED BARON PIZZA SQUADRON'S STEARMAN, Assembly Manual

Page 1: ...in 181 6 cm Wing area 1438 4 sq in 92 8 sq dm Weight 13 9 lbs 6 0 6 3 kg Length 53 5 in 136 cm Engine 20cc gasoline Radio 5 channels with 6 servos Graphics and specifications may change without notice Code SEA277 RED BARON PIZZA SQUADRON S STEARMAN 71 5 inches ...

Page 2: ...elp you build a great flying aeroplane Please read this manual throughly before starting assembly of your STEARMAN 71 5 inches Use the parts listing below to indentify all parts INTRODUCTION WARNING KIT CONTENTS 1 2 3 3 2 2 4 4 5 6 7 8 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 AEROPL...

Page 3: ...ncluding 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 panel and aileron and place a T p...

Page 4: ... wing panel securely hinging the aileron in place 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 ap plying 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...

Page 5: ...ing hole loca tions on the blocks 2 Use drill bit in a pin vise to drill the mouting holes in the blocks 3 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 4 Use dental floss to secure the connec tion so they cannot become unplugged 5 Secure the servo to the aileron hatch using Phillips screwdriver and the screws provided with the s...

Page 6: ...e servo location and use the tape to attach it to the servo extension lead Pull the lead through the wing and remove the string 8 Set the aileron hatch in place and use a Phillips screw driver to install it with four wood screws M2x10mm AILERON PUSHROD INSTALLATION Please see below pictures ...

Page 7: ...mounts 2 Secure the servos with the screws pro vided with your radio system Rudder servo Throttle servo Elevator servo Elevator servo THROTTLE SERVO ARM INSTALLATION Install adjustable servo connector in the servo arm as same as picture below 55mm M3 clevis M3 lock nut Servo arm Adjustable servo connector Loctite secure Throttle servo arm Elevator servo arm Elevator servo arm Rudder servo arm Trim...

Page 8: ...STEARMAN 71 5 inches Instruction Manual 8 Switch INSTALLING THE ENGINE SWITCH Trim and cut Switch INSTALLING THE MAIN LANDING GEAR TO FUSELAGE ...

Page 9: ...n the surround ing wood Apply a small amount of thin CA to harden the threads make by the screws Position the landing gear so it rakes forward Use the screws and land ing gear straps to secure the landing gear to the bottom of the fuselage 3x15mm 3x15mm M3x4mm M3x4mm ...

Page 10: ...STEARMAN 71 5 inches Instruction Manual 10 M3x10mm ...

Page 11: ...11 M3x10mm ...

Page 12: ...ff 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 the other end to the nylon pick up tube Collar Collar M4x5mm ...

Page 13: ...he tank It should not touch the top of 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...

Page 14: ...he lines to en sure the fuel lines have not become kinked inside the fuel tank compartment Air should flow through easily 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 ...

Page 15: ...4 On the fire wall has the location for the 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 4mm 7 Slide the throttle pushrod wire into the tube Position the engine between...

Page 16: ...r the throttle stick and trim 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 ...

Page 17: ...GINE COWLING Epoxy 1 Tape the cowl to the fuselage using low tack tape 2 Use a drill and drill bit to drill the holes for the cowl mounting screws Make sure the cowl position is correct before drill ing each hole ...

Page 18: ...10S Lipo 3 Attach the electric motor box to the firewall suitable with the cross lines drawn on the electric motor box and fire wall Using epoxy and balsa stick to se cure the motor box to the firewall Please see pictures below 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 inst...

Page 19: ...he holes on the electric motor box 4 Attach the motor to the front of the electric motor box using four 4mm blind nut four M4x20mm hex head bolts to se cure the motor Please see picture shown M4x20mm 4 mm Blind nut 5 5mm M4x20mm 145 mm Epoxy ...

Page 20: ...ach 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 mo tor Make sure the leads will not interfere with the operation of the motor Speed control Battery Open the air exit hole ...

Page 21: ...tor hinges in place using the same techniques used to hinge the ai lerons INSTALL ELEVATOR CONTROL HORN Elevator fiberglass control horn Epoxy Epoxy Fiberglass control horn INSTALLING THE HORIZONTAL STABILIZER 1 Using a ruler and a pen locate the cen terline of the horizontal stabilizer at the trailing edge and place a mark Use a tri angle and extend this mark from back to front across the top of ...

Page 22: ...en cutting through the covering to remove it cut with only enough pressure to only cut through the covering itself Cut ting into the balsa structure may weaken it Pen Trim and cut 6 Using a modeling knife carefully re move the covering that overlaps the sta bilizer mounting platform sides in the fuselage Remove the covering from both the top and the bottom of the platform sides Epoxy 7 When you ar...

Page 23: ... RUDDER CONTROL HORN Repeat steps to install the rudder control horn as same as steps done for ailerons Fiberglass control horn Epoxy Rudder fiberglass control horn INSTALLING VERTICAL STABILIZER 1 Using a modeling knife remove the covering from over the precut hinge slot cut into the lower rear portion of the fu selage ...

Page 24: ...n and draw a line on each side of the vertical stabilizer where it meets the top of the fuselage 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 3 Slide the vertical stabilizer back in place Using a triangle check to ensure that the vertical stabilizer is aligned 90º to the horizont...

Page 25: ...25 4 Elevator and rudder pushrods assem bly as pictures below 530mm M2 clevis M2 lock nut RUDDER PUSHROD INSTALLATION Repeat steps as same as steps done for elevator M2 clevis M2 lock nut 543mm ...

Page 26: ...STEARMAN 71 5 inches Instruction Manual 26 MOUNTING THE TAIL WHEEL Locate items necessary to imstall tail gear Nose wheel steering arm Metal clevis 482mm M2 clevis M2 lock nut ...

Page 27: ...27 C A glue INSTALL BRACING WIRE AND METAL BRACKET AT THE TAIL TOP VIEW 3x20mm 3x25mm 3x20mm ...

Page 28: ...STEARMAN 71 5 inches Instruction Manual 28 BOTTOM VIEW 3x15mm ...

Page 29: ...x 12 socket head machine screws and M3 washers Leave the hardware loose so the struts can be positioned while installing the upper wing center rib Make sure to use threadlock on the screws so they won t vibrate loose 3x12mm 3x12mm NOTE This is temporary steps for in stalling screws so no need to tighten the screws The exact position of the end will be adjusted when the struts are installed ...

Page 30: ...in position on the cabane struts Start the M3 x 12 socket head machine screws and M3 washers that secure the rib to the cabane struts 3x12mm 3x12mm ATTACHMENT WING FUSELAGE Attach the aluminium tube into fuselage Insert two lower wing panels as pictures below Wing tube Wing bolt ...

Page 31: ...ing panels as pictures below INSTALLATION WING STRUTS 1 Loacte the items for this section of the manual 2 Attach the two wing struts to the top of lower wing pant using an M3x12mm nachine screw and M3 washers 4x12mm M3x12mm ...

Page 32: ... panel for installation At this time exact position of the end is set please Use a 2 5mm hex wrench to slowly tighten the hardware securing the cabane struts in position on the fuselage Again make sure to use threadlock on all the fasteners to prevent them from vibrat ing loose M3x12mm ...

Page 33: ...rimp M3 clevis Crimp Metal Cable M3x30mm Begin placing tension on the wires working from the ends that have been crimped to the ends that have not There should be light tension on all the cables but not enough to change the position of the wing Once the cables have been tensioned begin by securing the crimps where the cables pass through the tabs near the fuselage Then secure the crimps at the cab...

Page 34: ...ween the top and bottom wings INSTALLATION PILOT AND WINDSHIELD 1 Locate items necessary to install pilot and windshield 2 A scale pilot is included with this ARF The Pilot included fits well in the cockpit or you can order others scale pilot fig ures made by SG Models They are avail able at SG Models distributors If you are going to install a pilot figure please use a sanding bar to sand the base...

Page 35: ...e windshield onto the fuse lage Trace around the windshield onto the fuselage using a felt tipped pen Cut and remove the covering from between the lines drawn and glue the windshield to the fuselage using epoxy or a special canopy glue ...

Page 36: ...S LOCATED 100MM BACK FROM THE LEADING EDGE OF THE WING AT THE WING ROOT 2 Mount the wing to the fuselage Place a piece of masking tape on the top of each wing 100mm back from the leading edge at the wing root 3 With the model inverted place your fingers on the masking tape and carefully lift the plane This is the point at which your model should balance for your first flights Later you may wish to...

Page 37: ...in good balance by doing so then it will be necessary to add weight to the nose or tail to achieve the proper balance point CONTROL THROWS Ailerons High Rate Up 25 mm Down 25 mm Low Rate Up 15 mm Down 15 mm Elevator High Rate Up 25 mm Down 25 mm Low Rate Up 15 mm Down 15 mm Rudder High Rate Right 30 mm Left 30 mm Low Rate Right 20 mm Left 20 mm ...

Page 38: ...ht 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 STEARMAN 71 5 INCHES to ensure that everything is tight and well bonded 3 Double check the bal...

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