P-40 warhawk (50cc)

Specification:

Length: 1860mm(73.2＂)

Wing span: 2210mm(87＂)

Wing area: 74.75sq.dm(8.06sq.ft)

Wing loading: 140.5g/sq.dm(46.1oz/sq.ft)

Flying weight: 10.5kg(23lbs)

Radio: 6ch & 9servos

Engine: 50cc gasoline engine

INSTRUCTION MANUAL

SAFETY PRECAUTIONS

This R/C airplane is not a toy!

(The people under 18 years old is forbidden from flying this model)

First-time builders should seek advice from people having building experience.If misused or abused,it can cause serious bodily injury and damage to property.

Fly only in open areas and preferably at a dedicated R/C flying site.

We suggest having a qualified instructor carefully inspect your airplane before its first flight.Please carefully read and follow all instructions included with this airplane,your radio control system and any other components purchased separately.

6 9

6

6 channel radio for aiplane is highly recommended for this model.

6

Gasoline tube

Gasoline

50cc gas engine

6.25 in Spinner

22″X8-10

9 Optional parts: rubber wheel with metal hub.

We strongly recommen you use the thread lock for all the screws when you build your model.

Two wheel retract system

Make sure to assemble retracts as instructed below.

Strut

Ball joint Strut

3-way pressure inlet

3-way pressure inlet

3-way pressure inlet

3-way pressure inlet

3-way pressure inlet

Quick release connector

Pressure reduction inlet

Ø1.7mm

Air tank

Air inlet

Quick release connector

Ø0.2mm

Switch

Please insure the sealing of the retract system before flight .

Pleas notice the inner diameter for each side of the pressure reduction inlet.

Air valve

The status when the gear up

Air valve

Pull out length of 8mm to make gear down

Strut

TP Screw(2.6x14mm)

2

Retainer

1

Clevis

Rod (2X300mm)

1

1

Strut ( 110 )

1

Switch

Air line (3000mm)

3-way pressure inlet

Air tank

Air inlet

Quick release connector

1

1

5

1

1

2

Strut ( 90 )

2

Accessory list for the coming installation steps.

Clevis

Clevis

Collar (3mm)

Rod (2.5x300mm)

TP Screw (2.3x12mm)

Servo tray(68.5x56.5x2mm)

Wooden Block(20x20x8mm)

Pin hinge(4.5x67mm)

Screw (4x40mm)

Lock Nut (4mm )

Washer(4x15mm)

2

2

2

2

8

2

2

6

2

2

4

1

Apply instant type AB glue to aileron and pin hinge.

Pin hinge(4.5x67mm)

6

3

Assemble the aileron to main wing with instant type AB glue. Be careful to ensure the moving parts of the hinges are able to move freely.

4

Securely glue together. If coming off during flights, you 'll lose control of your airplane which leads to accidents!

Install the servo as the illustration below.

2

Make sure hinges are mounted in the same line.

Keep some space about 1mm width between the tailing edge and the aileron.

Tailing

edge

Cut away the rubber tube when the epoxy glue dried.

Aileron

Make sure they are in the right position while installing.

1mm

1

5

Install the nylon control horn and connect the linkage.

Collar (3mm)

Rod (2.5x300mm)

Screw (3x10mm)

Clevis

Clevis

Nut (3mm )

Screw (4x40mm)

Lock Nut (4mm )

Washer

Clevis

2

Clevis

Screw (3x10mm)

Nut (3mm )

Rod (2.5x300mm)

2

2

2

2

Screw (4x40mm)

Lock Nut (4mm )

Washer(4x15mm)

4

Collar (3mm)

2

2

2

6

Secure the servo.Install the nylon control horn and connect the linkage.

TP Screw (2.3x12mm)

1.5mm

3mm

TP Screw (2.3x12mm)

8

Rod (2.5x300mm)

Clevis

Nut (3mm )

Screw (3x10mm)

Clevis

Lock Nut (3mm )

Washer

Washer

Screw (4x40mm)

Accessory list for the coming installation steps.

Clevis

Clevis

Collar (3mm)

Rod (2.5x300mm)

TP Screw (2.3x12mm)

Servo tray(68.5x56.5x2mm)

Wooden Block(20x20x8mm)

Pin hinge(36x20x1mm)

Screw (4x40mm)

Lock Nut (4mm )

Washer(4x15mm)

Washer(4x15mm)

2

2

2

2

8

2

2

2

2

8

2

2

7

Epoxy the pin hinges to the flap.

Pin hinge (36x20x1mm)

8

8

Keep some space about 1mm width between trailing edge and flap.

Trailing

edge

Flap

1mm

9

Make sure they are in the right position while installing.

Epoxy the flaps to the wings as illustration.

Securely glue together. If coming off during flighs, you 'll lose control of your airplane which leads to accidents!

10

Install the servo as the illustration below.

78

Adjustment.

ELEVATOR

Side View

80

Adjustment.

30mm

30mm

RUDDER

Top view

30mm

30mm

79

Adjustment.

Side View

Top view

Position for right diagram.

AILERON

FLAP

81

The centre of the Gravity.

AILERON

FLAP

30mm

30mm

40mm

Side View

154mm

Make sure hinges are mounted in the same line.

2 15

Accessory list for the coming installation steps.

75

The sketch map when assemble the tail landing gear to the wheel steeling mount.

Tail wheel (45mm)

Wheel (115mm)

Collar (6mm)

Wooden Block(63x60x35mm)

Washer (3x6mm)

TP Screw (3x20mm )

Landing gear straps

4

8

2

2

4

2

Landing gear (6mm)

1

Tail gear mount

Wooden Block (3mm Ply)

1

Wooden Block (9mm Ply)

1

1

Tail landing gear(3mm)

Tail wheel (45mm)

Collar (3mm)

Steel wire (0.5x3000mm)

1

1

2

2

Collar(3mm)

Collar(3mm)

Tail landing gear Collar(3mm)

Tail gear mount

73

Assemble the wheels to the standard undercarriages.

Collar (6mm)

Collar (6mm)

Wheel (115mm)

TP Screw (3x20mm)

74

Wooden supporter

Epoxy the standard undercarriages to the wings.

76 Assemble the wheel mount to the thick wooden block wooden block to it as illustration.

Wooden Block (3mm Ply)

Wooden Block (9mm Ply)

TP Screw(3x20mm)

Wooden Block (9mm Ply)

Wooden Block (3mm Ply)

77

Wooden Block (9mm Ply)

1

Wooden Block (3mm Ply)

1

Washer (3x6mm)

TP Screw(3x20mm)

4

4

Washer (3x6mm)

Epoxy the whole wheel mount set to the form in the fuselage when it works

Steel wire (0.5x3000mm) wheel mount servo

Steel wire (0.5x3000mm)

2

14

11

Install the nylon control horn and connect the linkage.

Collar (3mm)

Rod (2.5x300mm)

Screw (3x10mm)

Clevis

Clevis

Nut (3mm )

Screw (4x40mm)

Lock Nut (4mm )

Washer

Washer(4x15mm)

Clevis

Clevis

Screw (3x10mm)

Nut (3mm )

Rod (2.5x300mm)

2

2

2

2

2

Screw (4x40mm)

Lock Nut (4mm )

Washer(4x15mm)

Washer(4x15mm)

Collar (3mm)

2

2

2

2

2

12

Secure the servo.Install the nylon control horn and connect the linkage.

TP Screw (2.3x12mm)

1.5mm

Rod (2.5x300mm)

Clevis

Nut (3mm )

Screw (3x10mm)

Clevis

Lock Nut (3mm ) Washer

3mm

Washer(4x15mm)

Screw (4x40mm)

TP Screw (2.3x12mm)

8

Accessory list for the coming installation steps.

Wood dowel (6x50mm)

Wheel (115mm)

Bushing (8X4mm)

LockNut (4mm)

TP Screw (3x20mm)

Washer(3x6mm)

PVC

Rib template (2mm ply)

Stab joiner (30x680mm)

TP Screw (2.3x12mm)

Screw (6x50mm)

1

1

28

2

4

2

2

2

12

12

2

13

14

Assembly of the main wings.

A

B

Cut off the surplus PVC part carefully along the shaded line

3mm

A’

B’

A=A’

B=B’

15

Cut away the film on the position for the air retract landing and epoxy the wheel house to relevant position.

3

16

Assemble the wheels to the retracts.

19

Epoxy the wheel cover to appropriate position around the retract as illustration.

Bushing (8X4mm)

LockNut(4mm)

Wheel (115mm)

Note:rubber wheels oleo struts and retracts are optional.

17

Assemble the retracts to the main wing carefully.

TP Screw (3x20mm)

TP Screw (3x20mm)

Washer(3x6mm)

12

12

Washer(3x6mm)

20

According to the rib template drill holes in the wing root and epoxy wood dowels in them.

Wood dowel (6x50mm)

Stab joiner (30x680mm)

1

6mm

18

1.8mm

Assemble the wheel cover as illustration.

TP Screw (2.3x12mm)

12

Rib template (2mm ply)

Wood dowel (6x50mm)

Wood dowel (6x50mm)

Rib template (2mm ply)

1

4

21

According to the rib template drill holes in the fuselage.

6mm

Rib template (2mm ply)

TP Screw (2.3x12mm)

1.5mm

67

Epoxy plies appropriate position inside the fuselage as below and assemble the cowling.

TP Screw (2.3x8mm)

1.5mm

70

Epoxy two parts and the plastic tubes in the holes.

TP Screw (2.3x8mm)

Ply (15x15x3mm)

7

7

68

Epoxy plies to the cockpit and assemble the canopy to it with screw and epoxy.

TP Screw (2.3x8mm)

32.5mm

32.5mm

Plastic tube(5x50mm)

2

71

Drill two holes to the relevant position in the airplane for assembling the drop tank.

1.5mm

5mm

130mm

90mm

TP Screw (2.3x8mm)

Ply (15x15x3mm)

8

8

69

Epoxy plies to appropriate position inside the fuel tank and drill holes through them.

Ply (15x15x7mm)

72

Epoxy the drop tank to the bottom cover.

130mm

90mm

5mm

Ply (15x15x7mm)

2

15mm

4 13

61

Epoxy the wooden block to the breaches.

64

Epoxy plies to relevant position below the breaches in the fuselage.

22

Fix the wings to the fuselage.

Stab joiner (30x680mm)

24

Drill holes in the elevator and epoxy the pin hinges to them.

Pin hinge(4.5x67mm)

6

Wooden Block (9mm)

2

62

According to the location wooden block drill holes in the fuselage.

6mm

63

Trim breaches to relevant position in the fuselage for assembling the cockpit.

260mm

4mm

15mm ply(3mm)

2

65 ply and the wooden block in the fuselage and the cockpit,then set blind nuts to the holes in the wooden block.

Screw (3x15mm)

Washer (3x6mm) Blind Nut (3mm)

260mm

3mm

8mm

Screw (3x15mm)

Washer (3x6mm)

Blind Nut (3mm)

2

2

2

66

Epoxy the exhaust to the cowling.

419mm

162mm

305mm

23

Securely glue together. If coming off during flights, you 'll lose control of your airplane which leads to accidents!

Reinforce the connection between the fuselage and the wings by the screws as illustration.

Make sure hinges are mounted in the same line.

25

Drill holes to relevant position in the stabilizers and epoxy the elevators to them.

5mm

Screw (6x50mm)

Blind Nut

Screw (6x50mm)

2

Accessory list for the coming installation steps.

Securely glue together. If coming off during flights, you 'll lose control of your airplane which leads to accidents!

26

Install the servo as the illustration below.

Wooden Block (17x17x8mm)

Stab joiner (12x250mm)

1

Pin hinge(4.5x67mm)

9

Wood dowel (4x30mm)

4

Rib template (2mm ply)

1

Servo tray(66x54x2mm)

2

Wooden Block (17x17x8mm)

4

Clevis

Retainer

Rod (2x300mm)

TP Screw (2.3x12mm)

Screw (3x35mm)

Washer(3x15mm)

Lock Nut (3mm )

Washer(3x15mm)

2

2

2

2

2

2

8

2

Servo tray(66x54x2mm)

12 5

27

Install the nylon control horn and connect the linkage.

Retainer

Rod (2x300mm)

Clevis

Screw (2x10mm)

30

Drill two holes in the stab root base on the rib template.

4mm

28

Secure the servo of elevator and connect the linkage.

TP Screw (2.3x12mm) Rod (2x300mm)

1.5mm

3mm

Clevis

Screw (2x10mm)

Lock Nut (3mm )

Washer(3x15mm)

Washer

Screw (3x35mm)

Rib template (2mm ply)

Rib template (2mm ply)

1

31

Epoxy the stabilizers to the fuselage.

TP Screw (2.3x12mm)

8

29

Drill two holes at the stabilizer root base via rib template and epexy the wood dowel in them.

Rib template (2mm ply)

4mm

Securely glue together. If coming off during flights, you 'll lose control of your airplane which leads to accidents!

32

Drill holes to appropriate position in the rudder and epoxy the pin hinges in them

Pin hinge(4.5x67mm)

3

5mm

108mm

33mm

90mm

Stab joiner (12x250mm)

Wood dowel (4x30mm)

1

4

Wood dowel (4x30mm)

Make sure hinges are mounted in the same line.

6

56

Mounting the receiver and battery to appropriate position in the fuselage.

Switch servo

58

According to the location wooden block and mark in the cockpit through the holes in the location wooden block.

Throttle servo

Rudder servo

Location wooden Block (2mm)

Location wooden Block (2mm)

1

Accessory list for the coming installation steps.

59

57

Canopy

Canopy

TP Screw (2.3x8mm)

Ply(15x15x3mm)

Pvc part

Screw (3x15mm)

Washer (3x6mm)

Blind Nut (3mm)

1

2

15

15

2

2

2

2

Ply (17x17x8mm)

4

Plastic tube(5x50mm) ply(3mm)

Wooden Block (9mm)

2

Location wooden Block (2mm)

1

Wood dowel (6x30mm)

2

Drop tank

1

2

2

Cut off the surplus part from the cowling,exhausts and canopy carefully.

6mm

15mm

Wood dowel (6x30mm)

2

Wooden Block(17x17x8mm)

2

60

Open breaches to appropriate position in the cockpit as illustration.

260mm

4mm

15mm

11

50

Install the switch and the throttle servo

Set screw (3x4mm)

53 Epoxy the fuel tank in the fuselage.

Notice the position of the fuel tank in the fuselage.

Washer (2mm)

Washer (2mm)

Linkage Stopper

1

Washer (2mm)

1

Nut (2mm)

1

Set screw (3x4mm)

1

51

Install the throttle servo to appropriate position in the fuselage.

54

Assembly of the switch servo.

52

Assembly of the fuel tank.

Linkage Stopper

1

Washer (2mm)

1

Nut (2mm)

1

Set screw (3x4mm)

1

Add a rubber ring to the clevis for insuring safety

55

Assemble the switch servo to the fuselage.

Air pressure line

Fuel spray line

Fuel supply line

10

33

Vertical

fin keep some space about 1mm width between the vertical fin and rudder.

Rudder

Cut away the rubber tube when the epoxy glue dried.

Accessory list for the coming installation steps.

Clevis

Washer(3x15mm)

Lock Nut (3mm )

Plastical tube(3x50mm)

Clevis

Copper joiner

2

4

4

2

2

2

TP Screw (2.3x12mm)

8

Screw (3x80mm)

Copper joiner

Steel wire (0.5x3000mm)

Screw (2x10mm)

Nut (2mm )

Washer(2x5mm)

Ply (15x15x3mm)

4

4

4

1

2

4

8

1mm

34

Make sure they are in the right position while installing.

Drill holes to the relevant position in the tailing edge and epoxy the rudder to them.

37

Epoxy the tail retract to the frame steadily in the fuselage as below.

5mm

35

Assembly of the stabilizer.

Make sure to glue securely.

If not properly glued, a failure in flight may occur.

Securely glue together.If coming off during flights, you'll lose control of your airplane which leads to accidents!

Temporarily fasten down the main wing and check its correct position.

A A’

B B’

A = A '

B = B '

38

The sketch map for the steel wire of tail retract.

Steel wire (0.5x3000mm)

2

Steel wire (0.5x3000mm)

7

39

Drill a small hole to appropriate possition in the fuselage for installing the plastical tube.

Plastical tube(3x50mm)

2

45mm 70mm

3mm

68mm

42

The sketch map of the steel wire for the rudder.

40

The sketch map after the rudder shaft assemble finished.

43

Install the servo.

Screw (2x10mm)

Ball joint

Steel wire

Washer(2x5mm)

Lock Nut (2mm )

Copper joiner

Aluminum tube

Steel wire

Aluminum tube

Clevis

Clevis

Washer(3x15mm)

Lock Nut (3mm )

2

2

2

Lock Nut (3mm )

Screw (3x80mm)

Washer(3x15mm)

Screw (3x80mm)

Copper joiner

Steel wire (0.5x3000mm)

1

2

2

41

The sketch map of the linkage for the rudder and the tail wheel.

Clevis

Copper joiner

Screw (2x10mm)

Nut (2mm )

Washer(2x5mm)

4

4

4

4

4

44

Assemble the servo of rudder in the fuselage.

45

1.5mm

TP Screw (2.3x12mm)

TP Screw (2.3x12mm)

Ply (15x15x3mm)

8

8

Accessory list for the coming installation steps.

Screw(5mm)

Washer(5mm)

Spring Washer(5mm)

Linkage Stopper

Plastic tube (2x650mm)

Blind Nut (5mm)

4

12

4

2

1

4

Washer

Fuel tank (550cc)

4

1

46

The front view of the engine install completion

47

5.2mm

Blind Nut

250 mm

48

Drill four holes at the diameters as shown for engine mount.

49

Assemble the engine.

Blind Nut (4mm)

4

Washer

Screw

Washer

In case of 2-cycle & 4-cycle engine.

8 9