Seagull Models A6M Zero Fighter 67 User manual

1
Specications:
Wing span ---------------------- 67.0 in (170 cm).
Wing area ---------------------- 761.1 sq.in (49.1sq dm).
Weight -------------------------- 10.8 lbs (4.9 kg).
Length -------------------------- 51.1 in (129.8 cm).
Engine -------------------------- 15-20cc
Radio --------------------------- 5 channels with 7 servos.
Retracts landing gear (included).
Electric conversion: optional
ASSEMBLY MANUAL
Code : SEA 123N
Upgraded A6M Zero
Fighter 67”, 15-20cc

Upgraded A6M Zero Fighter 67”, 15-20cc Instruction Manual.
2
ank you for choosing the Upgraded A6M Zero Fighter 67”, 15-20cc ARTF by SG
MODELS . e Upgraded A6M Zero Fighter 67”, 15-20cc was designed with the in-
termediate/advanced sport yer in mind. It is a semi scale airplane which is easy to
y and quick to assemble. e airframe is conventionally built using balsa, plywood
to make it stronger than the average ARTF, yet the design allows the aeroplane to be
kept light. You will nd that most of the work has been done for you already. e mo-
tor mount has been tted and the hinges are pre-installed. Flying the Upgraded A6M
Zero Fighter 67”, 15-20cc is instruction manual is designed to help you build a great
ying aeroplane. Please read this manual throughly before starting assembly of your Up-
graded A6M Zero Fighter 67”, 15-20cc 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 ca-
pable of causing injury to people or property. WHEN YOU FLY THIS AEROPLANE YOU
ASSUME ALL RISK & REPONSIBILITY.
If you are inexperienced with basic R/C ight we strongly recommend you contact your R/C
supplier and join your local R/C model Flying Club. R/C Model Flying Clubs oer a variety
of training procedures designed to help the new pilot on his way to successful R/C ight.
ey will also be able to advise on any insurance and safety regulations that may apply.
INTRODUCTION
WARNING
KIT CONTENTS
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KIT CONTENTS
SEA123N Upgraded A6M Zero
Fighter 67”, 15-20cc
1. Fuselage
2. Wing set (2)
3. Tail set (2)
4. Canopy
5. Cowling (2)
6. Wing tube
7. Pilot
8. Main undercarriage
9. Wheel
10. Fuel tank
11. Tail wheel
12. Spinner
13. Bomb
14. Ep Motor box
15. Tail capture (2)
16. Anten
17. Engine bracket
ADDITIONAL ITEMS REQUIRED
TOOLS & SUPPLIES NEEDED
in 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 cutters.
Masking tape & T-pins.
read-lock.
Paper towels.
�15-20cc gasoline engine.
�Computer radio 5 channel with 7
servos.
�Glow plug to suit engine.
�Propeller to suit engine.
�Protective foam rubber for radio
system.
HINGING THE FLAP
Note : e control surfaces, including the ailer-
ons, elevators, and rudder, are prehinged with
hinges installed, but the hinges are not glued in
place. It is imperative that you properly adhere
the hinges in place per the steps that follow us-
ing a high-quality thin C/A glue.
Carefully remove the ap from one of the
wing panels. Note the position of the hinges.
Remove each hinge from the wing panel
and ap and place a T-pin in the center of
each hinge. Slide each hinge into the wing
panel until the T-pin is snug against the wing
panel. is will help ensure an equal amount
of hinge is on either side of the hinge line
when the ap is mounted to the aileron.
Hinge
1.
2.
Slide the wing panel on the ap until
there is only a slight gap. e hinge is
now centered on the wing panel and ap.
Remove 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 ap.

Upgraded A6M Zero Fighter 67”, 15-20cc Instruction Manual.
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NOTE : e hinge is constructed of a spe-
cial material that allows the C/A to wick
or penetrate and distribute throughout
the hinge, securely bonding it to the wood
structure of the wing panel and ap.
Deect the ap and completely satu-
rate each hinge with thin C/A glue. e
ailerons front surface should lightly con-
tact the wing during this procedure. Ide-
ally, when the hinges are glued in place,
a 1/64” gap or less will be maintained
throughout the lengh of the ap to the
wing panel hinge line.
3.
4.
Turn the wing panel over and deect the
ap in the opposite direction from the oppo-
site side. Apply thin C/A glue to each hinge,
making sure that the C/A penetrates into
both the aileron and wing panel.
Using C/A remover/debonder and a paper
towel, remove any excess C/A glue that may
have accumulated on the wing or in the ap
hinge area.
Repeat this process with the other wing
panel, securely hinging the aileron in
place.
Aer both ap are securely hinged,
rmly grasp the wing panel and aileron to
make sure the hinges are securely glued
and cannot be pulled out. Do this by care-
fully applying medium pressure, trying to
separate the ap 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 movement.
Note :
5.
HINGING THE AILERON
Note : e control surfaces, including the ailer-
ons, elevators, and rudder, are prehinged with
hinges installed, but the hinges are not glued in
place. It is imperative that you properly adhere
the hinges in place per the steps that follow us-
ing a high-quality thin C/A glue.
Carefully remove the aileron from one of
the wing panels. Note the position of the
hinges.
1.

5
Remove each hinge from the wing panel
and aileron and place a T-pin in the center
of each hinge. Slide each hinge into the wing
panel until the T-pin is snug against the wing
panel. is will help ensure an equal amount
of hinge is on either side of the hinge line
when the aileron is mounted to the aileron.
2.
Slide the wing panel on the aileron until
there is only a slight gap. e hinge is now
centered on the wing panel and aileron.
Remove 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.
NOTE : e hinge is constructed of a spe-
cial material that allows the C/A to wick
or penetrate and distribute throughout
the hinge, securely bonding it to the wood
structure of the wing panel and aileron.
Deect the aileron and completely satu-
rate each hinge with thin C/A glue. e
ailerons front surface should lightly con-
tact the wing during this procedure. Ide-
ally, when the hinges are glued in place,
a 1/64” gap or less will be maintained
throughout the lengh of the aileron to the
wing panel hinge line.
3.
4.
6.
5.
Turn the wing panel over and deect the
aileron in the opposite direction from the
opposite side. Apply thin C/A glue to each
hinge, making sure that the C/A penetrates
into both the aileron and wing panel.
Using C/A remover/debonder and a paper
towel, remove any excess C/A glue that may
have accumulated on the wing or in the
aileron hinge area.

Upgraded A6M Zero Fighter 67”, 15-20cc Instruction Manual.
6
Work the aileron up and down sev-
eral times to “work in” the hinges
and check for proper movement.
Note :
Repeat this process with the other wing
panel, securely hinging the aileron in
place.
Aer both ailerons are securely hinged,
rmly grasp the wing panel and aileron to
make sure the hinges are securely glued
and cannot be pulled out. Do this by care-
fully applying medium pressure, trying to
separate the aileron from the wing panel.
Use caution not to crush the wing struc-
ture.
Locate the aileron and ap control horns.
e taller control horn is used for the ailer-
ons, and the shorter horn for the aps.
Use sandpaper to scu the bottom of the
aileron and ap control horns. Use a paper
towel and isopropyl alcohol to remove any
oils or debris from the control horns.
Check the t of the control horns to the
aileron and ap. ey should rest ush
against the control surface as shown.
INSTALL THE AILERONS
CONTROL HORN
1.
7.
2.
3.
4.
Ailerons control horn
Place low-tack tape 1/32 inch (1mm)
from the control horn slot. is will pre-
vent epoxy from getting on the control
surface when the control horns are glued
in place.

7
Apply epoxy to the area of the control
horns that st into the slots. Use enough
epoxy so the control horns will be fully
bonded to the ed surfaces.
Remove the control horns from the
control surfaces. Apply epoxy to the slot
in the aileron and ap. Make sure the
epoxy gets into the slot for a good bond
between the surfaces and control horn.
Epoxy
Before the epoxy fully cures, remove
the tape from around the control horn.
is will allow the epoxy to ow around
the control horn, creating a small let
between the control horn and surface for
a ished look and secure bond.
7.
6.
5.
Epoxy
Install the ap control horn using the
same method as same as the aileron con-
trol horns.
Fiberglass control horn
INSTALL FLAP CONTROL HORN
2.
1.

Upgraded A6M Zero Fighter 67”, 15-20cc Instruction Manual.
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3.
Flap control horn
Epoxy
INSTALLING THE AILERON SERVOS
1.
2.
Ailerons servo Flap servo
Because the size of servos dier, you
may need to adjust the size of the precut
opening in the mount. e notch in the
sides of the mount allow the servo lead to
pass through.
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.
Use drill bit in a pin vise to drill the
mouting holes in the blocks.
Apply 2-3 drops of thin C/A to each of
the mounting holes. Allow the C/A to
cure without using accelerator.
1.5mm
3.
4.
Minimum servo spec.
Torque : 80 oz-in (5.8 kg-cm) @ 4.8V;
100 oz-in (7.2 kg-cm) @ 6.0V

9
Use dental oss or heatshrunk tube to
secure the connection so they cannot be-
come unplugged.
C/A glue
5.
6.
Secure the servo to the aileron hatch
using Phillips screwdriver and the screws
provided with the servo.
7.
Apply 1-2 drops of thin C/A to each of
the mounting tabs. Allow the C/A to cure
without using accelerator.
C/A glue
8.
Remove the string from the wing at the
servo location and use the tape to attach it
to the servo extension lead. Pull the lead
through the wing and remove the string.
9.
10.
11.

Upgraded A6M Zero Fighter 67”, 15-20cc Instruction Manual.
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Set the aileron hatch in place and use a
Phillips screw driver to install it with four
wood screws. Mark the control wire where it crosses
the servo arm hole.
Make a 90-degree bend at the mark and
cut o the excess wire leaving 8mm past
the bend.
12.
13.
14.
3x10mm
AILERON PUSHROD INSTALLATION
1.
2.
3.
4.

11
Connect the linkage as shown and secure
the control wire with a snap keeper.
5.
6.
1.
2.
Repeat the procedure for the aileron
pushrod.
INSTALLING THE FLAP PUSHROD
1.
2.
Locate items necessary to install Sprin
Landing Gear.
You use this fork set JP ER-120-84degree.
INSTALLING RETRACTABLE
LANDING GEAR
Flap
Wing
M2 lock nut

Upgraded A6M Zero Fighter 67”, 15-20cc Instruction Manual.
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3.7.
4.8.
5.9.
6.10.
3x20mm
3x10mm

13
11.15.
12.16.
13.
14.
4x5mm
3x4mm
17.
18.
3x4mm

Upgraded A6M Zero Fighter 67”, 15-20cc Instruction Manual.
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21.
22.
23.
24.
25.
19.
20.
Collar
3x4mm
INSTALLING THE FUSELAGE SERVOS
.
Because the size of servos dier, you
may need to adjust the size of the precut
opening in the mount. e notch in the
sides of the mount allow the servo lead to
pass through.
Install the rubber grommets and brass
collets into all servos. Test t the servos
into the fuselage servo mounts.

15
1.
rottle servo Elevator servo
Rudder servo
Tail wheel
Secure the servos with the screws pro-
vided with your radio system.
Elevator servo
2.
rottle servo
THROTTLE SERVO ARM
INSTALLATION
Install adjustable servo connector in the
servo arm as same as picture below:
1.
2.
INSTALLING THE RECEIVER SWITCH
Install the switch into the precut hole in
the side, in the fuselage.
3/32” Hole.
1.
rottle servo arm
Rudder servo
Elevator servo arm
Rudder servo arm
.
2.
3.
Switch
Trim and cut

Upgraded A6M Zero Fighter 67”, 15-20cc Instruction Manual.
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INSTALLING THE ENGINE SWITCH
Trim and cut
1.
Switch
2.
INSTALLING THE STOPPER
ASSEMBLY
Using a modeling knife, carefully cut
o the rear portion of one of the 3 nylon
tubes leaving 1/2” protruding from the
rear of the stopper. is will be the fuel
pick up tube.
Using a modeling knife, cut one length
of silicon fuel line. Connect one end of
the line to the weighted fuel pick up and
the other end to the nylon pick up tube.
1.
2.
Carefully bend the second nylon tube up at
a 45º angle. is tube is the vent tube.
Test t the stopper assembly into the tank.
It may be necessary to remove some of the
ashing around the tank opening using a
modeling knife. If ashing is present, make
sure none falls into the tank.
With the stopper assembly in place, the
weighted pick-up should rest away from the
rear of the tank and move freely inside the
tank. e top of the vent tube should rest just
below the top of the tank. It should not touch
the top of the tank.
3.Vent tube
Fuel ll tube
Fuel pick up tube

17
When satised with the alignment of the
stopper 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 dicult to determine which is which.
1.
3.
4.
5.
Slide the fuel tank into the fuselage. Guide
the lines from the tank through the hole in
the ewall.
Use plywood template to hold in place the
fuel tank with C/A glue to secure the fuel-
tank inside the fuselage.
2.
6.
Fuel pick up tube Fuel ll tube
Vent tube

Upgraded A6M Zero Fighter 67”, 15-20cc Instruction Manual.
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2.
ead locker glue
Connect the lines from the tank to the
engine and muer. e vent line will
connect to the muer and the line from
the clunk tothe carburetor.
Blow through one of the lines to ensure
the fuel lines have not become kinked inside
the fuel tank compartment. Air should ow
through easily.
MOUNTING THE ENGINE
Locate the items necessary to install the
engine mount included with your model.
Use four 4x30mm head bolts and four
4mm washers to attach the engine mount
rails to the rewall. Tighten the screws .
Make sure to use threadlock on the
screws to help prevent them from vibrat-
ing loose.
1.
3.
Position the engine with the drive washer
(150mm) forward of the ewall as shown.
Use a pin drill and 4mm drill bit to drill
a small indentation in the mount for the
engine mounting screw.
Use a drill to drill the four holes in the
engine mount rails.
4.
5.
150mm
4mm

19
6.
On the e wall has the location for the
throttle pusshrod tube (pre-drill).
Slide the pushrod tube in the ewall and
guide it through the fuel tank mount. Use
medium C/A to glue the tube to the e-
wall and the fuel tank mount.
Connect the Z-bend in the 450mm
throttle pushrod to the outer hole of the
carburetor arm.
Slide the throttle pushrod wire into the
tube. Position the engine between the
mounts. Use four M4x30mm machine
screws to secure the engine to the mount
as shown.
7.
8.
9.
4x25mm
10.
11.
Pushrod wire
M4 lock Nut

Upgraded A6M Zero Fighter 67”, 15-20cc Instruction Manual.
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17.13.
18.14.
19.15.
16.12.
Ignition Modude