SG Models SEA 116 User manual

1
ASSEMBLY MANUAL
Specications
Wing span .............................. 65.0 in (164 cm)
Wing area ............................... 764.2 sq.in (49.3sq dm)
Weight .................................... 12.1lbs (5.5 kg)
Length .................................... 50.4 in (128 cm)
Engine .................................... 15-20cc
Radio .................... ................. 5 channels with 7 servos
Retracts landing gear (included)
Graphics and specications may change without notice
Code : SEA 116

Seafire Instruction Manual.
2
ank you for choosing the Seafire ARTF by SG MODELS . e Seafire was designed
with the intermediate/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, ply-
wood 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 motor
mount has been tted and the hinges are pre-installed. Flying the Seafire is simply a joy.
is instruction manual is designed to help you build a great ying aeroplane. Please
read this manual throughly before starting assembly of your Seafire Use the parts listing
below to indentify all parts.
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 ap-
ply.
Please be aware that this aeroplane is not a toy and if assembled or used incorrectly it is
capable of causing injury to people or property. WHEN YOU FLY THIS AEROPLANE
YOU ASSUME ALL RISK & REPONSIBILITY.
INTRODUCTION
WARNING
KIT CONTENTS
22
1
3 3
4
5
6
713
8
9
10
11
12

3
KIT CONTENTS
SEA116 Seafire
1. Fuselage
2. Wing set (2)
3. Tail set (2)
4. Canopy
5. Cowling
6. Wing tube
7. Pilot
8. landing gear
9. Fuel tank
10. Tail wheel
11. Ep Motor box
12. Pushrod set
13. Spinner
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.
T-pin

Seafire Instruction Manual.
4
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.
C/A glue
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.
T-pin
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.
Hinge
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.
- 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.
- 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.
T-pin
C/A glue

Seafire Instruction Manual.
6
Work the aileron up and down sev-
eral times to “work in” the hinges
and check for proper movement.
Note :
5.
- 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.
2.
Ailerons control horn
3.
- 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.
- 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.
4.
5.
Epoxy

7
- Install the ap control horn using the
same method as same as the aileron con-
trol horns.
Fiberglass control horn
INSTALL FLAP CONTROL HORN
1.
2.
3.
- 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.
- 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.
Epoxy
4.

Seafire Instruction Manual.
8
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 dental oss or heatshrunk tube to
secure the connection so they cannot be-
come unplugged.
C/A glue
5.
6.
- 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 : 6.0V: 157.00 oz-in (11.31 kg-cm)
7.4V: 179.00 oz-in (12.89 kg-cm)

9
- Secure the servo to the aileron hatch us-
ing 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.
- Set the aileron hatch in place and use a
Phillips screw driver to install it with four
wood screws.
12.
3x10mm
13.

Seafire Instruction Manual.
10
6.
3.
4.
5.
14.
1.
2.
AILERON PUSHROD HORN
INSTALLATION
- 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.
- Connect the linkage as shown and se-
cure the control wire with a snap keeper.

11
1.
2.
3.
4.
- Repeat the procedure for the aileron
pushrod.
INSTALLING THE FLAP PUSHROD INSTALLING RETRACTABLE
LANDING GEAR
- Locate items necessary to install Sprin
Landing Gear.
1.
2.
3.

Seafire Instruction Manual.
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5.
4.
6.
7.
8.
9.
10.
11.
3x10mm
3x4mm
3x4mm
4x5mm
3x15mm

13
12.
13.
2.
1.
INSERT BOMB ONTO THE WING
3.
4.
Epoxy
5.
6.

Seafire Instruction Manual.
14
7.
8.12.
9.
10.
11.
13.
14.
15.

15
16.
17.
18.
20.
19.
1.
2.
INSERT THE WING GUN ONTO THE
WING
3.
Epoxy

Seafire Instruction Manual.
16
4.
5.
WING ASSEMBLY
1.
2.
3.
4.
.
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.
- Secure the servos with the screws
provided with your radio system.
1.
Rudder servo
rottle servo
Elevator servo

17
THROTTLE SERVO ARM
INSTALLATION
- Install adjustable servo connector in the
servo arm as same as picture below:
2.
Elevator servo arm
Minimum servo spec.
Torqu e : 6.0V: 157.00 oz-in (11.31 kg-cm)
7.4V: 179.00 oz-in (12.89 kg-cm)
Rudder servo arm
1.
INSTALLING THE RECEIVER SWITCH
- Install the switch into the precut hole in
the side, in the fuselage.
3/32” Hole.
.
INSTALLING THE ENGINE SWITCH
Trim and cut
Switch
Trim and cut
Switch
1.
2.
3.
1.
2.
rottle servo arm

Seafire Instruction Manual.
18
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.
3.
4.
5.
- 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.
- 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.
Vent tube
Fuel ll tube
Fuel pick up tube

19
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.
- 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.
4.
3.
2.
Fuel pick up tube Fuel ll tube
Vent tube
- 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
- Please see below pictures.
1.
2.

Seafire Instruction Manual.
20
3.
4.
25mm
5.
6.
5.5mm
7.
8.
ead locker glue
- Position the engine with the drive wash-
er (135mm) forward of the ewall as
shown.
9.
10.
135mm