SG Models NORTH AMERICAN T-28 TROJAN, Assembly Manual

Page 1: ...n 63 0 in 160 cm Wing area 349 5 sq in 41 9 sq dm Weight 8 8 9 9 lbs 4 0 kg Length 50 7 in 128 7 cm Engine 10 15cc Motor size 1200 1500 Watts Radio 6 channels with 7 servos Electric Power Conversion Included Graphics and specifications may change without notice Code SEA258 ...

Page 2: ... manual is designed to help you build a great flying aeroplane Please read this manual throughly before starting assembly of your NORTH AMERICAN T 28 TROJAN Use the parts listing below to indentify all parts 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 REPO...

Page 3: ...ine 1200 1500 Watts Computer radio with 7 servos Glow plug to suit engine Propeller to suit engine Protective foam rubber for radio system Thin cyanoacrylate glue Medium cyanoacrylate glue 30 minute epoxy 5 minute epoxy Hand or electric drill Assorted drill bits Modelling knife Straight edge ruler 2mm ball driver Phillips head screwdriver 220 grit sandpaper 90 square or builder s triangle Wire cut...

Page 4: ...ide of the hinge line when the aileron is mounted to the aileron 3 Slide the wing panel on the aileron until there is only a slight gap The hinge is now centered on the wing panel and aileron Re move the T pins and snug the aileron against the wing panel A gap of 1 64 or less should be maintained between the wing panel and aileron Hinge 4 Deflect the aileron and completely satu rate each hinge wit...

Page 5: ...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 hinges and check for proper move...

Page 6: ...tring through the wing as indicated 2 Place the servo between the mounting blocks and space it from the hatch Use a pencil to mark the mounting hole loca tions on the blocks 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 C A glue 5 Use dental floss to secure the conne...

Page 7: ...hout using accelerator C A glue 8 Remove the string from the wing at the servo location and use the tape to at tach 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 2x10mm ...

Page 8: ...low pictures Use a felt tip pen to mark the wire where it crosses the hole Use a pair of pliers to put a shrp 90 degree bend in the wire at the mark Mark Bend at the mark 8mm M2 lock nut Metal clevis Snap keeper Snap keeper Servo arm Fuel tubing Hex Nut Nylon Snap keeper INSTALLING THE FLAP PUSHROD Repeat the process for the flap pushrod ...

Page 9: ...Instruction Manual 9 STANDARD FIXED LANDING GEAR Please see below pictures Epoxy M3x20mm ...

Page 10: ...North American T 28 Trojan 10 Collar Collar Epoxy M3x20mm ...

Page 11: ...s kit however it is a very popular add on as optional If you want to use retracts in your T 28 Trojan we recommend that you buy a good set of electric retracts as the Himark AM05 Main Gear and the AM 06 Nose Gear shown as below These retract units will bolt right into the T 28 Trojan inplace of the standard fixed gear ...

Page 12: ...North American T 28 Trojan 12 2mm M3x15mm Epoxy Collar ...

Page 13: ...ts onto all servos Test fit the servos into the servo mounts 2 Secure the servos with the screws pro vided with your radio system Rudder servo Elevator servo Throttle servo THROTTLE SERVO ARM INSTALLATION Install adjustable servo connector in the servo arm as same as picture below Servo arm Adjustable servo connector Loctite secure Throttle servo arm Install the switch into the precut hole in the ...

Page 14: ...North American T 28 Trojan 14 Switch INSTALLING THE ENGINE SWITCH INSTALLING THE NOSE GEAR Trim and cut Switch Collar ...

Page 15: ...Instruction Manual 15 OPTIONAL RETRACT NOSE GEAR Cut ...

Page 16: ...North American T 28 Trojan 16 2mm Collar ...

Page 17: ...per 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 is installed inside the fuselage it may be difficult to det...

Page 18: ...to the muffler and the line from the clunk to the carburetor Vent tube Fuel pick up tube Fuel fill tube Blow through one of the lines to ensure 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 ...

Page 19: ...n the mount for the engine mounting screw 4mm 3 Use a drill to drill the four holes in the engine mount rails 4mm 4 On the fire wall has the location for the throttle pusshrod 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 t...

Page 20: ...and trim and install the servo horn perpendicular 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 these below pictures ...

Page 21: ...owl in place over the engine Temporar ily install the propeller and spinner in order to find the exact location of the cowl When satisfied with the cowl placement secure the cowl to the fuselage 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 carbureto...

Page 22: ...e with the cross lines drawn on the electric motor box and fire wall Using M4x20mm to secure the mo tor box to the firewall Please see pictures below M4x20mm Motor 1200 1500 Watts Propeller 14x 8 16x10 ESC 60A 5S 7S Lipo 4 Attach the motor to the front of the electric motor box using four 3mm blind nut four M3x15mm hex head bolts to se cure the motor Please see picture shown 4 mm Blind nut ...

Page 23: ... the motor Please see picture shown 145 mm Epoxy M3x15mm Balsa stick Epoxy 6 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 mo tor Make sure the leads will not interfere with the operation of the motor Battery Tie wraps INSTALLING THE SPINNER ...

Page 24: ...g 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 the stabilizer Also extend this mark down the back of the trailing edge of the stabilizer Draw center line 2 Place the stabilizer on the stabilizer mounting platform at the rear of the fu selage 3 With the horizontal...

Page 25: ...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 are sure that everything is aligned correctly mix 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 mounti...

Page 26: ...the fuselage and the lower rudder hinge should engage the precut hinge slot in the lower fuselage The bot tom edge of the stabilizer should also be firmly pushed against the top of the hori zontal stabilizer 3 While holding the vertical stabilizer firmly in place use a pen and draw a line on each side of the vertical stabilizer where it meets the top of the fuselage 4 Slide the vertcal stabilizer ...

Page 27: ...es 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 1 Locate items necessary to install eleva tor pushrod Elevator control horn 2 Elevator pushrods assembly as pic tures below ELEVATOR PUSHROD INSTALLATION HINGING THE RUDDER Glue the rudder hinges in place usin...

Page 28: ...North American T 28 Trojan 28 M2 lock nut M2 clevis 8mm 8mm 3 Install center the throttle stick for nose gear Make sure to use threadlock on the screw so it does not vibrate loose ...

Page 29: ...pushrods assembly as pictures below RUDDER PUSHROD INSTALLATION 1 Locate items necessary to install rud der pushrod Rudder control horn M2 lock nut M2 clevis 8mm 8mm Elevator pushrod Rudder pushrod INSTALLATION BALSA WOOD ON THE TAIL ...

Page 30: ...ing bar to sand the base of the figure so that it is flat 3 Position the pilot figure on the can opy floor as shown Use epoxy to glue the base of the pilot figure to the cockpit floor please see pictures as shown Epoxy Epoxy Epoxy 20mm 20mm 4 Position the canopy onto the fuselage Trace around the canopy and onto the fu selage using a felt tipped pen Carefully cut and remove covering material from ...

Page 31: ...switch lead into the receiver Plug the battery pack lead into the switch also 2 Wrap the receiver and battery pack in the protective foam rubber to protect them from vibration Receiver Battery Battery 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 de sired using the photos on the box ...

Page 32: ...tabilizer level 3 With the model inverted place your fingers on the masking tape and carefully lift the plane 2 Mount the wing to the fuselage Using a couple of pieces of masking tape place them on the top of the wing 100mm back from the leading edge of the wing at the wing root BALANCING 1 It is critical that your airplane be balanced correctly Improper balance will cause your plane to lose contr...

Page 33: ...Instruction Manual 33 ...

Page 34: ...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 NORTH AMERICAN T 28 TROJAN to ensure that every thing is tight and well bonded 3 Double check ...