NEXA SBD-5 Dauntless User guide

Radio control model / Flugmodel

U.S NAVY DIVE BOMBER

ALL BALSA, PLYWOOD CONSTRUCTION AND ALMOST READY TO FLY

Instruction manual / Montageanleitung

SPECIFICATIONS

Wingspan:.........................2060mm (81.1in)

Length:................................1450mm (57 in)

Electric Motor:.....................See next pager

Gas Engine:................................. 26-30cc

RTF Weight: 7Kg / 15.5lbs (Will vary with

Equipment Used).

Radio:...............8-9 Channel / 10-11 Servos

Function: Ailerons-Elevator-Rudder-Throttle

Flaps-Optional Retractable Landing Gear.

WARNING! This radio controlled model is NOT a toy. If modified or flown carelessly it could go out of controll and

cause serious human injury or property damage. Before flying your airplane, ensure the air field is spacious enough.

Always fly it outdoors in safe areas and seek professional advice if you are unexperienced.

ACHTUNG! Dieses ferngesteuerte Modell ist KEIN Spielzeug! Es ist für fortgeschrittene Modellflugpiloten bestimmt,

die ausreichende Erfahrung im Umgang mit derartigen Modellen besitzen. Bei unsachgemässer Verwendung kann

hoher Personen- und/oder Sachschaden entstehen. Fragen Sie in einem Modellbauverein in Ihrer Nähe um

professionelle Unterstätzung, wenn Sie Hilfe im Bau und Betrieb benötigen. Der Zusammenbau dieses Modells ist

durch die vielen Abbildungen selbsterklärend und ist für fortgeschrittene, erfahrene Modellbauer bestimmt.

TECHNISCHE DATEN

Spannweite:...................................2060mm

Lange:............................................1450mm

Elektroantrieb.............(siehe nächste Seite)

Verbrennerantrieb:..........................26-30cc

Fluggewicht:..........................................7Kg

Fernsteuerung......8-9 Kanal / 10-11 Servos

REQUIRED FOR OPERATION (Purchase separately)

Minimum 8-9 channels radio

GLUE

(Purchase separately)

SILICON

Silicon sealer

Spinner hub

Minimum 8-9 channels radio

with 8 mini servos and 3 standard

Servo (for GP).

.Motor control x1(for GP) .Elevator x2

.Rudder x1. Aileron x2. Flap x3

.Air brake x2

Gas engine:

4T 40cc

(OS GF-40)

CA

Cyanoacrylate Glue (thin type)

Extension cord for aileron servos: 80cm(x2)

Extension cord for flap and brake servos: 50cm(x4)

Extension cord for retract servos: 30cm(x2)

Extension cord for Rx battery pack: 30cm(x1)

Extension cord for Elevator servos: 80cm(x2)

Gas engine:

2T 26-30cc

EPOXY A

Epoxy Glue

(30 minute type)

EPOXY B

TOLLS REQUIRED

Hobby knife

(Purchase separately)

Phillip screw driver

Hex Wrench

Awl

Needle nose Pliers

Scissors

Wire Cutters

Sander

.........................................................

Masking tape - Straight Edged Ruler - Pen or pencil - Drill and Assorted Drill Bits

If exposed to direct sunlight and/or heat, wrinkels can appear. Storing the

model in a cool place will let the wrinkles disappear. Otherwise, remove

wrinkles in covering film with a hair dryer, starting with

low temperature. You can fix the corners by using a hot iron.

Bei Sonneneinstrahlung und/oder Wärme kann die Folie erschlaffen bzw. Falten

entstehen. Verwenden Sie ein Warumluftgebläse (Haartrockner) um evtl. Falten aus der Folie

zu bekommen. Die Kanten können Sie mit einem Bügeleisen behandeln. Nicht zuviel Hitze anwenden !

Symbols used throughout this instruction manual, comprise:

Drill holes using the stated

1.5mm

size of drill

(in this case 1.5 mm )

A

B

Use epoxy glue

Take particular care here

!

Apply cyano glue

CA

Hatched-in areas:

remove covering

film carefully

Assemble left and right

L/R

sides the same way.

Check during assembly that these

parts move freely, without binding

Not included.

These parts must be

X

purchased separately

Low seting

L/R

Read through the manual before you begin, so you will have an overall idea of what to do.

CONVERSION TABLE

1.0mm = 3/64”

1.5mm = 1/16”

2.0mm = 5/64”

2.5mm = 3/32”

3.0mm = 1/8”

4.0mm = 5/32”

5.0mm = 13/64”

6.0mm = 15/64”

10mm = 13/32”

12mm = 15/32”

15mm = 19/32”

20mm = 51/64”

25mm = 1”

30mm = 1-3/16”

45mm = 1-51/64”

1- Center Wing

ON

OFF

GEAR

SWITCH

Push the wooden dowel to the hole on the rib

as show. Ensure that the dowel is rectangular

with the rib.

Secure it in place using the thin CA glue.

Connect all electric retract to the receiver.

Move the Struts out

L/R

CA

Thin CA

Move the Struts out

2- Center Wing: Flap servo

Connector

Flap push rod

(one end to servo)

Flap control horn

.................1

2x170mm.......................1

3- Gear door

8

B

CA

7

A

13

8

B

A

8

B

AT

A

25

Bo1

25

24

2424

20

Bo2

9

18

24

B

C3

C

2

21

Bo3

10

A

14

A

16

24

19

22

25

Bo4

9

B

10

9

B

10

11

12

SBD

10

9

1

C1

17

C1

17

5

C4

15

C4

15

2

3

6

4

19

7

19

CA

Note: Do not glue the wooden gear door mounts to the

struts at this time.

4- Joining the wing

25x960mm

aluminum tube

ON

OFF

GEAR

SWITCH

Aluminum tube

Connect the electric retract with the radio to check

the position of the wheel when the electric retract

in retracted position. Ensure smooth non-binding

movement.

Move the gear door (with gear door mounts) to up

or down, when satisfied, secure the wooden gear

door mount in place using CA glue.

CA

CENTER WING

B

B’

B=B’

5- Right / Left wing halves: Servo

Brake servo

Flap servo

Connector

............6

Aileron servo

hatch

Flap and brake push rod

(one end to servo)

Flap and brake

control horn

AIL.

2x170mm.......................4

WING BOTTOM

Control horn

Aileron servo

Hatch

Servo

mount

2x170mm.......................4

................2

2x30mm

..........4

6- Joining the wing

.....2

5x20mm screws

Apply the 30 min. Epoxy to the dowels, aluminum tube,

the one end of the center wing and right wing.

Note: connected the servo wires at this time.

A

B

A

B

Carefully slide the center wing and right wing together,

ensuring that they are accurately aligned.

Firmly press the two halves together. Secure the center

wing and right wing using the 4x20mm screw.

Do the same way with other side .

4x20mm

7- Engine

Fuselage - front view

A

Full the magnetic canopy

hatch out of the fuselage.

A

B

Step 1

B

Mark the plywood where the four holes are to be drilled.

A1=A2

A1

A2

B1

B1=B2

B2

B

5mm

Step 3

X

Step 2

Step 4

The long of the aluminum tubes are the same.

Note: The aluminum tube not include.

Step 5

5x80mm screw

....4

5mm nut

........12

5mm washer

..........8

8- Engine

9- Fuel tank

Continued

!

Please Note: This plane was design to use

for 30cc gasoline-2 stroke engine or 40cc-4 stroke engine.

Incase you want to use bigger engine, please reinforce the

firewall and other connection by Epoxy

10- Electric Motor

Air tube

Rubber

stopper

Cap

Filler tube

Stopper

To engine

The long of the aluminum tubes are the same.

Note: The aluminum tube not include.

5x80mm screw

....4

5mm nut

........12

5mm washer

..........8

X

11- Horizontal stabilizer

* WARNING: When removing any covering from the airframe, please

ensure that you secure the cut edge with CA or similar cement. This

will ensure the covering remain tight.

A’

A

CC’

B’

B

Step 11A

Cut away only

the covering*

If the fit is overly tight, it may be necessary to

lightly sand the hole on the fuselage.

Trial fit the horizontal stabilizer in place on the fuselage. Check the alignment

of the horizontal stabilizer. The distance must be equal on both sides

(A=A’ and B=B’ and C=C’). If not, adjust the stabilizer until the measurements

are the same.

When you are satisfied with the alignment , use a pencil to

carefully trace around the top and bottom of the stabilizer

where it meets the fuselage. Note, it is important not to

disturb the alignment of the stabilizer. The pencil should

leave a light indentation in the covering.

Pencil

Step 11B

Step 11C

Remove the horizontal stabilizer from the fuselage. Using a sharp hobby

knife, carefully cut away the covering inside the lines which were marked

in Step 5B.

Be cautious not to cut into the wood-this will weaken the structure.

12- Horizontal stabilizer

15 min. Epoxy

A

B

Step 12B

Add a thin layer of 15 minutes Epoxy

glue along the horizontal stabilizer to

contact the fuselage to make sure

there are no gaps (Step 12B).

Continued

B

Again, trial fit the horizontal stabilizer in place on the fuselage and

adjust the alignment as described in Step 11A.

Secure the stabilizer in place using the thin CA glue (Step 12A).

Thin CA

Step 12A

CA

13-Elevator

Petroleum jelly

Step 13A

Apply a thin layer of machine oil or

petroleum jelly to only the pivot point

and the leading edge of the elevator.

A

Step 13B

5 min.

B

OR

CA

HORIZONTAL STABILIZER

When satisfied with the and alignment, hinge the elevator to the horizontal

stabilizer using 5 minute epoxy or Thin CA. Make sure to apply a thin layer of epoxy to

the top and bottom of both hinges and to inside the hinge slots. Repeat the previous

procedures to hinge the second elevator to the other side of the horizontal stabilizer.

NOTE: You may need to open up the slots

so that the hinges are not too difficult to

push in.

A

B

OR

5 min.

CA

Thin CA

Please do not clean off the excess epoxy on the horizontal

stabilizer and the elevator with strong solvent or pure

alcohol, only use kerosene to keep the colour of your model

not fade.

14-Elevator

Continued

Step 14B

Elevator Safety

1.5mm

Cut the excess toothpick and secure it

in place using little Thin CA glue.

1.5mm

Step 14A

1.5mm

CA

Thin CA glue

Toothpick

(x 12pcs)

Not include

Step 14C

HORIZONTAL STABILIZER

15- Rudder

Toothpick

Rudder torque rod bearing

1-Glue the rudder torque rod bearing into the slot in the

vertical stabilizer. Using the thin CA glue.

2-Without using glue yet, push the rudder and its hinges

into the hinge slots in the trailing edge of the vertical

stabilizer.

3-When satisfied with the alignment, mark the mounting

hole position, where the rudder torque rod meets the

rudder with a pencil.

4-Remove the rudder and drill 1/8” (3mm) diameter hole,

making sure that you drill the hole perpendicular to the

leading edge of the rudder.

3mm

CA

16 Tail wheel

1- Slide the wire, straight end first, into the push rod tube

2- Insert the Z-bend into the hole on the tail wheel control arm.

3- Place the tail wheel control arm to the center of the tail

wheel mount.

4- Insert the tail gear assembly through the tail gear

mount.

Rudder control

horn

1-Turn the rudder torque rod bearing, Thread the nylon

adjustable control horn onto the end of rudder torque

rod, making sure that the adjustable control horn face

forward.

2-Slide the rudder push rod into the rudder push rod

guide (black nylon tube).

3-Install the clevis onto the rudder torque rod horn.

CA

ABS fillet (x2)

2x6mm screw

1.5mm

17- Guns

2

4

1

CA

5

CA

3

6

CA

1

C1

17

C1

17

5

C4

15

C4

15

2

3

6

4

19

7

19

18- Bomb

20

Bo2

CA

21

Bo2

22

Bo4

19

B01

CA

19

CA

19

CA

19

19- Bomb

20- Bomb

24

A

13

25

Bo1

25

8

B

8

B

A

AT

24

2424

20

Bo2

9

18

24

B

C3

C

2

24

21

Bo3

10

A

14

A

16

19

22

25

Bo4

9

B

10

9

B

10

11

12

SBD

3mm

24

11mm diameter

aluminum tube

CA

2mm diameter steel wire

Silicon tube

21- Bomb

CA

2x6mm screw

Nylon control horn

CA

25

1.5mm

22- Hook

CA

17

CA

16

15

CA

X2

C2

C3

8mm diameter aluminum tube

14

Wing - bottom view

CA

18

23- Decor

Do the same way with other side

Black nylon wire

CA

Wing surface

CA

Black nylon wire

BLACK NYLON TUBE

.........................................................

WING- TOP VIEW

24- Servo

Magnetic Pilot

sitter

Remove before

installing servo

Connector

............4

Switch hole

FUSELAGE TOP-VIEW

Elevator push rod

Tail wheel

push rod

Rudder

push rod

Elevator push rod

25- Guns - Antenna

11

CA

26- Rear Canopy

27- Magnetic canopy hatch / Step

Step

CA

Step

CA

Step

Cut the opening

28- Cowling

Plastic dummy engine

Note: secure the plastic dummy

engine using 5 min.Epoxy.

1.5mm

28- Balance

(128 ~ 133mm)

1.5mm

Secure the cowling in place

using 2.5x12mm screws.

2.5x12mm screw

.......6

Note: Adjust the location of the battery pack to achieve this C.G location.

DO NOT try to fly an out-of balance model!

Wing center section

29- Control surface

(15mm)

(20mm)

AILERON STROKE

ELEVATOR STROKE

RUDDER STROKE

(15mm)

(25mm)

(40mm)

CENTER FLAP STROKE

RIGHT&LEFT BRAKE STROKE

(40mm)

RIGHT&LEFT FLAP STROKE

Adjust the travel of the control surfaces to achieve the values stated in the diagrams.

These value will be suitable for average flight requirements. Adjust the values to suit your particular needs.

IMPORTANT: Please do not clean your model with strong solvent or pure alcohol, only use kerosene to keep the

colour of your model not fade.

30- Decal