BH Model T-28 TROJAN 120 Instruction Manual Book Download Page 1 | Manualshive

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Summary of Contents for T-28 TROJAN 120

Page 1: ... Manual book J i1I I j J f I c 1 I r SPECIFICA TION D Wingspan D Length D Weight D Radio D Servo D Engine 78 74 in 63 78 in 11 88 Lbs 200cm 162cm 5 4 kg 07 channels 10 servos 120 2 stroke 20CC Gas Made in Vietnam ...

Page 2: ...ir craft and to protect the table Keep a couple of jars or bowls handy to hold the small parts af ter you open the bag Thick 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 cutters Masking tape T pins Thread Iock Paper to...

Page 3: ...ropel ler Make engine adjustments from behind the propeller only Do not reach around the spin ning propeller REPLACEMENT LARGE PARTS Note regarding the film covering Minor creases or bubbles may develop in the film covering due to major fluctuations in weather conditions temperature humidity etc in rare cases you may even find a slight warp in a component These minor faults are in the nature of fi...

Page 4: ...INSTALLING THE AILERON FLAP SERVO CONTROL HORN Bottom side Aileron t p p C Aglue Flap T 28 TROJAN Instruction Manual 0 0 4 ...

Page 5: ...l servo into ai leron servo tray as same as picture below D 1 Install the rubber grommets and brass eyelets onto the aileron servo Secure D 4 Using the thread as a guide and using masking tape tape the servo lead to the end of the thread carefully pull the thread out When you have pulled the servo lead out re move the masking tape and the servo lead from the thread D 2 Using a modeling knife remov...

Page 6: ...TALLING THE AILERON CONTROL HORN HJ IOn cont ol clasp 3x40mm I 1 I Electric wire j Secure j i T 28 TROJAN Instruction Manual i Nilon control clasp 3 x 40mm D 5 Instal servo tray with aileron servo into the wing as same as picture below 2x10mm 6 ...

Page 7: ... V lf I c II r J r I c Installing the aileron linkages as pictures INSTRUCTION MANUAL T 28 TROJAN Install aileron control horn as same as picture below e Repeat the procedure for the other wing half below M3 M3 lock nut r t 7 ...

Page 8: ...HE FLAP SERVO INSTALLING THE FLAP CONTROL HORN I 1 I m ilOn control clasp 3x40mm 2X1Omm Flap 7 T Thread 8 c c C c c c Removecove 9g V Flap c c P c c T 28 TROJAN Instruction Manual IS Nilon control clasp 3x40mm J 8 ...

Page 9: ...8 TROJAN INSTRUCTION MANUAL INSTALLING THE FLAP LINKAGES c Caniralharn U afire flap r l pri laD9 e3mm diameter I Q 1 I L ccc 5J pc Mark point Repeat the procedure for the other wing half Installing the aileron linkages as pictures below 9 TAilerori Bottom ...

Page 10: ...0 T Ti J AI N T T T T3x1smm Mi c c li fJ R T 0 T T T rn 1 l l i ...

Page 11: ...INSTALLING THE ENGINE MOUNT 8 fJj 1 l 14 30rr r i I I 8 J1 T 28 TROJAN INSTRUCTION MANUAL ENGINE MOUNT Repeat the procedure for the other wing half See pictures below It 4 x 30mm tt 1 4 x 30mm 1 1 1 11 ...

Page 12: ...e necessary to remove some of the flashing around the tank opening using a modeling knife If flashing is present make sure none of it falls into the tank D 6 When satisfied with the alignment of the stopper assembly tighten the 3mm x 20mm machine screw until the rubber stopper ex pands and seals the tank opening Do not over tighten the assembly as this could cause the tank to split D 7 Using a mod...

Page 13: ... to a Z bend at the factory This Z bend should be inserted into the throttle arm of the engine when the engine is fitted onto the engine mount Fit the engine to the engine mount using the screws provided Do not secure the tank into place perma nently until after balancing the airplane You may need to remove the tank to mount the battery in the fuel tank compartment 13 ...

Page 14: ...Ttt t C C C CC q 1 Pushrod wire t T t t 4x30mm 0000 Left side i T 28 TROJAN Instruction Manual Pushrod wire 4x 30mm 0 0 0 0 14 ...

Page 15: ...INSTALLING NOSE AIR RETRACTABLE LANDING GEAR r 3x m O T 28 TROJAN INSTRUCTION MANUAL 15 ...

Page 16: ...ver the en gine and line up the back edge of the cowl with the marks you made on the fuselage D 2 While keeping the back edge of the cowl flush with the marks 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 Hold the cowl firmly in place using pieces of masking tape D 3 Slide the c...

Page 17: ...13X12mm T T T I 289 r T T T J b Right side Right side T 28 TROJAN INSTRUCTION MANUAL 3x12mm 17 ...

Page 18: ...hrough the third hole out from the center of one servo arm enlarge the hole in the servo arm using a 2mm drill bit to accommodate the servo connector Remove the excess mate rial from the arm After installing the adjustable metal con nector apply a small drop of thin CIA to the bottom nut This will prevent the con nector from loosening during flight 18 ...

Page 19: ... THE SERVO NOSE GEAR I Connector f Servo arm T 28 TROJAN INSTRUCTION MANUAL D 1 Install the rubber grommets and brass collets into the elevator seNo Test fit the seNo into the seNo tray D 2 Mount the seNo to the tray using the mounting screws provided with your radio sys tem i 19 ...

Page 20: ...horizontal stabilizer Then slide the horizontal into the fuselage D 2 Using a modeling knife cut away the covering from the fuselage for the stabilizer and remove it D 3 Mark the shape of the vertical on the left and right sides onto the horizontal stabilizer using a left tip pen 20 ...

Page 21: ...nly enouflh pressure to only cut throuqh the coverinfl it s self Cuttinq into the balsa structure may weaken it This could lead to possible fail ure durinfl fliflht D 5 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 stabilizer mounting area and to the stabilizer mounting platform sides in the fusela...

Page 22: ...ed re move the masking tape orT pins used to hold the stabilizer in place and carefully inspect the glue joints Use more epoxy to fill in any gaps that were not filled previously and clean up the excess using a paper towel and rubbing alcohol Elevator control horn install as same as the way of aileron control horn Please see pic tures below Control horn of elevator 22 ...

Page 23: ...ELEVATOR PUSHROD INSTALLATION I o I lo I c CC i i cc Elevator control horn control horn i T 28 TROJAN INSTRUCTION MANUAL Pushrod install as same as method of pushrod wing See pictures below 23 ...

Page 24: ...VERTICAL STABILIZER 0 Top 8 I i I o I I o I I c I I i i jj j 1 111 f fi 1i N c X 28 9 IdJ T 28 TROJAN Instruction Manual Vertical stabilizer installation See picture below 24 ...

Page 25: ...the film not the balsa rudder D Also carefully remove the covering from below the lines as you drew as same picture below D 1 Put the rudder into the fuselage as same as picture below D 2 Mark the shape of the vertical on the left and right side of the rudder on to the horizon tal stabilizer using a felt tip pen D 3 Put the vertical stabilizer back in place Using a triangle check to ensure that th...

Page 26: ...lizer mounting area Apply epoxy to the lower rudder hinge Set the stabilizer in place and re align Double check all of your measurements once more before the epoxy cures Remove any excess epoxy using a paper towel and rubbing alcohol and hold the stabilizer in place with T pins or masking tape Allow the epoxy to fully cure before proceed ing D 6 Using a modeling knife cut away the covering from th...

Page 27: ...ll as sams as picture below I C A e w YCc ti t Remove covering Control horn of Rudder T 28 TROJAN INSTRUCTION MANUAL Rudder control horn install as same as the way of aileron control horn Please see pic tures below D 1 Rudder pushrod install as same as the way of aileron control horn D 2 Rudder push pull system install as same as picture below 27 ...

Page 28: ... yc Control horn of rudder 1 T 28 TROJAN Instruction Manual 28 ...

Page 29: ... 1 1 I INSTALLATION SERVO AIR RETRACT ABLE LANDING GEAR Cut ti t Rudder Rudder ble cable ca T 28 TROJAN INSTRUCTION MANUAL 29 ...

Page 30: ... w w 0 f J t m 8 t x CX3 W q o W 30 T 28 TROJAN t OR Z 0 0 0 w 0 u i j c w 0 O 0 0 c t O F U UJ Z Z O U 0 cr w e z Instruction Manual iiifit c aJ Q z I w t w t 0 0 w 1 w z z O U tn O w J O J z O c II a z J J u O tt 1 9 z z b w z 0 1 Q E M fl H I ...

Page 31: ...ct r 4 I Valve control I I I I l t u c I AI Valve one way 3 way conector Air speed control 4 way conector w 1 1ig U c o 0 T 28 TROJAN INSTRUCTION MANUAL 3 way conector Valve one way Air speed control 4 way conector 31 ...

Page 32: ... TROJAN Instruction Manual D 1 Cut out the switch hole using a modeling knife Use a 2mm drill bit and drill out the two mounting holes through the fuselage side D 2 Secure the switch in place using the two machine screws provided with the radio system 32 ...

Page 33: ... into the switch D Locate the aluminium wing dihedral brace Test fit the aluminium tube dihedral brace into each wing haft The brace should slide in easily If not use 220 grit sand around the edges and ends of the brace until it fits prop erly D 2 Wrap the receiver and battery pack in the protective foam to protect them from vi bration Use a rubber band or masking tape to hold the foam in place D ...

Page 34: ... 1 t rn J f f 3x15mm 7 1 D IIa hole 3mm d amete f ecure Instruction Manual T 28 TROJAN 3 x 40mm 3x15mm 34 ...

Page 35: ... WING ATTACHMENT OIJ c r I i l6 I T 28 TROJAN INSTRUCTION MANUAL See picture wing attach to fuselage Installing the fuselage hatch as same as pic ture below 35 ...

Page 36: ... Top fuselage 0 I L CIA glue J 0 j 11 fr Instruction Manual T 28 TROJAN 36 ...

Page 37: ...s located 11Omm back from the leading edge 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 smooth ness and arrow like tracking but it may then require more speed for take off and make it more difficul...

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