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Wing Span
Wing Area
Flying Weight
Fuselage Length

54.0 in / 1370mm
564 sq in / 36.4 sq dm
6.0 lbs / 2650g
54 in / 1370mm

Warning !This model is not a toy.

It is designed for maximum performance.  Please seek advice if one is not familiar with this kind
of engine powered precision model.  Operating this model without prior preparation may cause
injuries.  Remember, safety is the most important thing.  Always keep this instruction manual at 
hand for quick reference.

THE WORLD MODELS
MANUFACTURING CO. LTD.

FACTORY PRE-FABRICATED
ALMOST-READY-TO-FLY (ARF)  SERIES
MADE IN CHINA
www.theworldmodels.com

0.40 cu.in. displacement 2-cycle
0.52 cu.in. displacement 4-cycle

Radio required : 5 channels, 6 servos airplane radio

* Specifications are subject to change without notice.*

Specifications

INSTRUCTION MANUAL

INSTRUCTION MANUAL

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Summary of Contents for P-39 AIRACOBRA

Page 1: ...paration may cause injuries Remember safety is the most important thing Always keep this instruction manual at hand for quick reference THE WORLD MODELS MANUFACTURING CO LTD FACTORY PRE FABRICATED ALMOST READY TO FLY ARF SERIES MADE IN CHINA www theworldmodels com 0 40 cu in displacement 2 cycle 0 52 cu in displacement 4 cycle Radio required 5 channels 6 servos airplane radio Specifications are su...

Page 2: ... be purchased separately Drill holes with the specified diameter here 3mm 3mm Warning Check all parts If you find any defective or missing parts contact your local dealer Please DRY FIT and check for defects for all parts that will require CA or Epoxy for final assembly Any parts you find to be defective after the gluing process may be difficult to remove for warranty replacement The manufacturer ...

Page 3: ...vator 1 pc 16 THROTTLE PUSHWIRE Ø1 2x420mm w Plastic tubed2xD3x200mm 1 set 17 WOODEN PARTS BALSA10x10x91mm For Fixing Fuel Tank 1 pc PLYWOOD 1x10x20mm For Belly Pan 2 pcs PLYWOOD 6x20x33mm For Belly Pan 2 pcs PLYWOOD 3x61x85 5mm Rudder Servo Stand 1 pc PLYWOOD 3x61x87 5mm Throttle Elevator Servos Stand 1 pc PLYWOOD 3x10x77mm For Rudder Servo 2 pcs PLYWOOD 3x10x79mm For Throttle Elevator Servos 2 p...

Page 4: ...P 3 1 Aileron Servo 3 Aileron Servo 2 Main Wing Peel off shaded portion covering film Peel shaded Portion covering film PM 2x25mm Screw Ø1 8x105mm PM 2x25mm Clevis Fuel Tube Ø6x5mm ...

Page 5: ...4 Linkage Stopper 3 X 3mm Set Screw Linkage Connector 2mm Nut 2mm Washer KA 3x14mm Screw 3mm Set Screw 4 1mm Collar Wheel Ø50mm 1 5mm 26mm Storke Wheels up position T L s d o i e To R side Wheels down position 3mm Set Screw KA 3x14mm 4 1mm Collar 26mm Storke ...

Page 6: ...A 3x12m Screw 3mm Set Screw 2 1mm Collar Wheel Ø23mm PA 3x12mm 2mm 1 5mm PM 4x25mm Screw 4mm Washer Engine Mount PL5111 050 4mm PM 4x25mm Apply thread locker to screws Blind nuts are off centered to keep the spinner at the fuselage axis 3mm Set Screw 2 1mm Collar ...

Page 7: ... Throttle Pushwire Ø1 2x420mm PM 3 5mmx30mm Install Engine position Spinner Ø62mm Fire Wall 115mm 4 5in Illustratuin is for inverted mounting You can mount the engine upright or sideways simply by rotating the engine mount thrust angles will not be affected 3 5mm 1 8x80mm heat shrink Tube 8x580mm Ø1 8x165mm Ø1 8x160mm 5mm 1 8x165mm 1 8x160mm Clevis Fuel Tube Ø6x5mm Be careful not to scorch the hea...

Page 8: ...mm Nut 2mm Washer Elevator Pushrod Plastic Tube d2xD3x700mm Plastic Tube d2 5xD4x50mm Elevator Pushrod PM 2x16mm Fuel Tube Ø6x5mm PM 2x16mm Screw Bottom View Bottom View Throttle Pushwire 3mm 2mm Included with the Radio Set Throttle Servo Please refer to attachecd sheet for linkage connector installation 2mm 2mm ...

Page 9: ...od Ø1 8x27mm w Threads Install and arrange the servo as shown in the diagram Plywood3x61x87 5mm Plywood3x61x85 5mm Clamp the copper tube Throttle Servo Fuel Tube Ø6x5mm Elevator Servo Rudder Servo Metal Rod Ø1 8x27mm Plywood3x10x79mm Plywood3x10x77mm Bottom View Bottom View PM 4x35mm Screw d4xD15mm Washer Plywood 6x20x33mm PM 4x35mm d4xD15mm 2mm Nut ...

Page 10: ...ilicon Grommet PWA2 3x12mm Plywood 1x10x20mm Silicon Grommet d1 5x6 5mm 1 5mm PWA2 6x12mm Screw d1 5xD6 5mm Silicon Grommet 1mm PWA2 6x12mm PWA2 3x8 Screw d1 5xD6 5m m Silicon Grommet Silicon Grommet d1 5xD6 5mm PWA2 3x8mm 3mm Pilot 1mm Silicon Gromme t d1 5x6 5mm 1 5mm ...

Page 11: ...ntrol throws as shown in the diagram These throws are good for general flying You can adjust according to your personal preference The ideal C G position is 135mm 5 32in behind the leading edge measured at where the wing meets the fuselage In order to obtain the C G specified add weight to the fuselage or move the battery position Check the C G before flying 18mm 45mm 10mm ...

Page 12: ... flyer is absolutely necessary Pre flight adjustment must be done before flying it is very dangerous to fly a badly pre adjusted aircraft Zen 50 is specially designed to be powered by 2 engine using a more powerful engine does not mean better performance In fact over powered engine may cause severe damage and injuries Make sure the air field is spacious never fly the plane too close to people and ...

Page 13: ...h exh xha exha au ha x pl mp Simply s templa 2 2 2 2 2 h nt nt t 3 3 is s t t 3 3 3 3D D Th s u of t s of T f u s of T T Th is is is is is T i T s of T of f u u u i is is i i is Th s i Th u of t 4 4 4 4 mp pl t 3D tem nto the a ings req 3D he s re 3D t to ng n 3D te tem to the gs o the the em h em te 3D te to the ngs re s s re e e a a ng to gs o s o t o th o the o the he h th t em te t 3D tem nto ...

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