Seagull Models ET 6 - TEXAN User manual

Kit features.
• Ready-made—minimalassembly&finishingrequired.
• Ready-coveredcovering.
• Photo-illustratedstep-by-stepAssemblyManual.
MadeinVietnam.
Specifications
WingSpan-------------------------------62.5in------------------158.7cm.
WingArea-----------------------------627.8sqin------------40.5sqdm.
Weight---------------------------------5.3-6.0lbs -------2400g-2700g.
Length------------------------------------ 46.6in------------------118.3cm.
Need to Complete
Speed Control: 100 - 120 amp.
Recommended Battery 4 - 5 cells. 3000 - 5000mAh Li-Po.
ASSEMBLY MANUAL
MS:X11
ET 6 - TEXAN
“Graphics and specfications
may change without notice”.
2

ET6. Instruction Manual.
2
INTRODUCTION.
Thank you for choosing the ET 6 ARTF by SEAGULL EP. The ET 6 was designed with the
intermediate/advancedsportflyer inmind.It isa semiscale airplane which iseasytofly and quick
toassemble.Theairframeis conventionally built using balsa,plywood tomakeitstrongerthan the
averageARTF,yetthedesignallowstheaeroplanetobekeptlight.Youwillfindthatmostofthework
has been done for you already.Flying the ET 6 is simply a joy.
This instruction manual is designed to help you build a great flying aeroplane. Please read this
manual thoroughly before starting assembly of your ET 6. Use the parts listing below to identify all
parts.
WARNING.
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 & RESPONSIBILITY.
If you are inexperienced with basic R/C flight we strongly recommend you contact your R/C
supplierandjoinyourlocalR/CModelFlyingClub.R/CModelFlyingClubsofferavarietyoftraining
proceduresdesignedtohelp the new pilotonhiswaytosuccessfulR/Cflight.Theywill also be able
to advise on any insurance and safety regulations that may apply.
ADDITIONAL ITEMS REQUIRED.
 Motor: Ep Motor
Radio: 4channel with 5 digital servos
(mediumsize).
 Speed control: 100A to 120A.
Battery: Power battery
4 - 5 cells / 3000 - 5000 mAh.
Power battery.

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NOTE: To avoid scratching your new aero-
planewesuggestthatyoucoveryour
workbench with an old towel. Keep a
couple of jars or bowls handy to hold
the small parts after you open the
bags.
Pleasetrialfitallparts.Makesureyou
have the correct parts and that they
fit and are aligned properly before
gluing! This will ensure proper as-
sembly as the ET 6 is made from
natural materials and minor adjust-
ments may have to be made.
The paint and plastic parts used in
this kit are fuel proof. However, they
arenottolerantofmanyharshchemi-
cals including the following: paint
thinner, cyano-acrylate glue accel-
erator,cyanoacrylategluede-bonder
andacetone.Donotlet these chemi-
calscome in contact with the colours
onthecoveringandthe plastic parts.
TOOLS & SUPPLIES NEEDED.
Thick cyanoacrylate glue.
30 minute epoxy.
5 minute epoxy.
Hand or electric drill.
Assorted drill bits.
Modellingknife.
Straight edge ruler.
2mm ball driver.
Phillips head screwdriver.
220 grit sandpaper.
90° square or builder’s triangle.
Wire cutters.
Masking tape & T-pins.
Thread-lock.
Paper towels.

ET6. Instruction Manual.
4
1) Carefully remove the aileron from one
of the wing panels. Note the position of the
hinges.
2)Remove each hingefrom the wingpanel
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. This will help ensure an equal amount
ofhingeisoneithersideof the hinge line when
the aileron is mounted to the aileron.
HINGING THE AILERONS.
3) Slide the wing panel on the aileron until
there is only a slight gap. The 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
shouldbe maintained between thewing panel
andaileron.
4)Deflect the aileron and completely
saturate each hinge with thin C/A glue. The
aileronsfrontsurfaceshouldlightlycontact the
wing during this procedure. Ideally, when the
7) Repeat this process with the other wing
panel, securely hinging the aileron in place.
5) Turn the wing panel over and deflect the
aileron in the opposite direction from the
opposite side. Apply thin C/A glue to each
hinge,makingsure thattheC/Apenetratesinto
both the aileron and wing panel.
6) Using C/A remover/debonder and a
papertowel,remove any excessC/Aglue that
may have accumulated on the wing or in the
aileronhinge area.
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. HINGING THE ELEVATOR.
8)After both ailerons are securely hinged,
firmly grasp the wing panel and aileron to
make sure the hinges are securely glued and
cannot be pulled out. Do this by carefully
applying medium pressure, trying to separate
the aileron from the wing panel. Use caution
not to crush the wing structure.
The control surfaces, including the
ailerons, elevators, and rudder, are
prehinged with hinges installed, but the
hinges are not glued in place. It is
imperativethat you properlyadhere the
hingesin place per the stepsthat follow
using a high-quality thin C/A glue.
Note:
The hinge is constructed of a special
material that allows the C/A to wick or
penetrateanddistributethroughoutthe
hinge, securely bonding it to the wood
structureof the wing paneland aileron.
Note:
Work the aileron up and down several
times to “work in” the hinges and check
for proper movement.
Note:
Hinge.
T-pin.
T-pin.
C/Aglue.

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Glue the elevator hinges in place using the
same tectniques used to hinge the ailerons.
HINGING THE RUDDER.
Glue the rudder hinges in place using the
same tectniques used to hinge the ailerons.
INSTALLING THE MAIN GEAR WIRES.
1) Assemble and mounting the wheel as
shown in the following pictures.
2) Using a modeling knife, remove the
covering from over the two main gear mount-
ing slots located in the bottom of the wing.
3) Insert the 90º bend of one main gear
wire into the predrilled hole in one mounting
slot.
4) The landing gear wire is held in place
using two nylon landing gear straps and four
3mm x 10mm wood screws.
Landinggear.
Collar. C/Aglue.
Landing gear wire.
Wing bottom.
Gear mounting slot.
Wing bottom.

Epoxy.
Wing brace. Wing brace.
3 x 10mm.
1) Coat both sides of one half of the dihedral
brace with 30 minute epoxy. Next, pour some
epoxyinto thedihedral boxin onewing panel.
. Use enough epoxy to fill any gaps.
Landing gear wire.
WING ASSEMBLY.
NOTE: We highly recommend using 30
minute epoxy as it is stronger and provides
more working time, allowing the builder to
properlyalignthe parts.Usingfastcureepoxy
whenjoiningthewinghalvescouldresultinthe
gluedryingbeforethewinghalvesarealigned
properlywhichmayresultinfailureofthewing
centre section during flight.
INSTALLING THE GEAR FAIRING.
See pictures below :
2)Carefullyslidethetwowing halves together
and firmly press them together, allowing the
excess epoxy to run out. There should not be
any gap in the wing halves. Use rubbing
alcohol and a paper tower to clean up any
excess epoxy.
3)Apply masking tape at the wing join to
hold the wing halves together securely.
Gearfaring.
Plastic trap.
C/Aglue.
ET6. Instruction Manual.
6

AILERON SERVOS-LINKAGES.
 1) Turn the wing panelright side up.Using
amodelingknife,removethecoveringatservo
tray.
Attach the thread to the servo lead and
carefully thread it though the wing.
 2)Secure the servos with the screws pro-
vided with your radio system.
Install the rubber grommets and brass collets
onto the aileron servo.Test fit the servo into
the aileron servo mount.
Because the size of servos differ, you
mayneedto adjust thesizeoftheprecutopen-
ing in the mount. The notch in the sides of
themountallowtheservoleadtopassthrough.
4) When the epoxy has cured, carefully
remove the masking tape from the wing.
5) Peel off the backing from the self adhe-
sivecoveringstrip.Applythestriptothecentre
section of the wing starting from the bottom
trailingedge.Wrapthestripallthewayaround
the wing until it meets the trailing edge again.
Trim off any excess strip.
Wing bottom.
Thread.
Servo electric wire.
Electric wire.
Plastic tape.
C/Aglue.
Thread.
Servo mount.
Small weight.
Wing bottom.
Thread.
Small weight.
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ET6. Instruction Manual.
8
2) Locate the two nylon control horns, two
nylon control horn backplates and four
machine screws.
3) Position the aileron horn on the bottom
side of aileron. The clevis attachment holes
should be positioned over the hinge line.
2mm X 20mm.
6) Connect the linkage as shown and se-
cure the control wire with a wire keeper.
AILERON LINKAGE.
1) Using a ruler & pen to draw a straight
line as below picture.
ControlHorn.
MountingScrews. Mounting Plate.
5) Mount the control horns by inserting the
screws through the control horn bases and
aileron halves, then into the mounting
backplates. Do not overtighten the screws or
the backplates may crush the wood.
4) Using a 1mm drill bit and the control
horns as a guide, drill the mounting holes
through the aileron halves.
Servo arm.
Wire keeper.
Straightline.
Pen.
Cut.

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Removecovering.
Elevator servo.
Rightside.
Rightside.
Remove covering.
FUSELAGE SERVO INSTALLATION.
HORIZONTALSTABILIZER.
2)Usinga modelingknife,carefullyremove
thecoveringat mounting slot ofhorizontal sta-
bilizer ( both side of fuselage).
 3) Slide the stabilizer into place in the pre-
cut slot in the rear of the fuselage. The stabi-
lizer should be pushed firmly against the front
of the slot.
Repeat the procedure for the other ai-
leron servo.
Because the size of servos differ, you
mayneedtoadjustthesizeoftheprecutopen-
ing in the mount. The notch in the sides of the
mount allow the servo lead to pass through.
3)Secure the servos with thescrews pro-
vided with your radio system.
2) Installthe rubber grommets and brass
collets onto the elevator servo. Test fit the
servo into the elevator servo mount.
1) Locate and cut out the covering film
fromthe servo holesin both sidesof fuselage.
1) Using a ruler and a pen, locate the
centerlineof thehorizontalstabilizer,atthetrail-
ing edge, and place a mark. Use a triangle
and extend this mark, from back to front,
across the top of the stabilizer. Also extend
thismark down the back ofthe trailing edge of
the stabilizer.
 4) With the stabilizer held firmly in place,
use a pen and draw lines onto the stabilizer
where it and the fuselage sides meet. Do this
on both the right and left sides and top and
bottom of the stabilizer.
Left side. Pen.
Elevator servo. Rudder servo.  5) Remove the stabilizer. Using the lines
youjust drew asa guide, carefully remove the
covering from between them using a model-
ingknife.
Center line.
9

ET6. Instruction Manual.
10
4) Remove the stabilizer. Using a mod-
eling knife, remove the covering from below
the lines you drew. Also remove the covering
from the bottom edge of the stabilizer and the
bottomandtopedgesof the filler block. Leave
the covering in place on the sides of the filler
block.
When cutting through the covering to re-
moveit, cut with only enough pressure to only
cut through the covering itself. Cutting into
the balsa structure may weaken it.
1) Using a modeling knife, remove the
covering from over the precut hinge slot cut
intothelowerrearportionofthefuselage. This
slot accepts the lower rudder hinge.
3) While holding the vertical stabilizer
firmly in place, use a pen and draw a line on
each side of the vertical stabilizer where it
meets the top of the fuselage.
When cutting throughthe covering tore-
moveit, cut with only enough pressure to only
cut through the covering itself. Cutting into
the balsa structure may weaken it.
 6) When you are sure that everything is
alignedcorrectly, apply C/Aglueto the top and
bottom of the stabilizer mounting area and to
the stabilizer mounting platform sides.
VERTICAL STABILIZER INSTALLATION.
2) Slidethe vertical stabilizerinto the slot
in the top of the fuselage. The rear edge of
thestabilizer shouldbeflushwiththerearedge
of the fuselage and the lower rudder hinge
should engage the precut hinge slot in the
lowerfuselage. The bottom edgeof the stabi-
lizer should also be firmly pushed against the
top of the horizontal stabilizer.
Hinge.
Pen.
Hingeslot.

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Elevator control horn.
5) Slide the vertical stabilizer back in
place. Using a triangle, check to ensure that
thevertical stabilizer isaligned 90º tothe hori-
zontal stabilizer.
Control horn install as same as method of
aileron wing. See pictures below.
CONTROL HORN INSTALLATION.
90º
Vertical
Stabilizer.
Horizontal
Stabilizer.
 6) When you are sure that everything is
aligned correctly, apply C/Aglue to fix them.
C/Aglue.
Pushrod install as same as method of
pushrod wing. See pictures below.
PUSHROD INSTALLATION.
Elevator control horn.
C/Aglue.
Rudder control horn.
Pushrod.
Removecovering.
Pushrod.

ET6. Instruction Manual.
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INSTALLING ELECTRIC MOTOR.
1) Align the tail wheel wire so that the wire
is parallel with the bottom of the rudder. The
controlclasp has a predrilled hole through the
topofit. Slide this hole ontothetail wheel wire
while sliding the clasp over the bottom of the
rudder.
3) While holding the clasp firmly in place,
use a pen and outline the clasp onto the rud-
der.
4) Remove the clasp, and using a modeling
knife,removethe covering frominsidethelines
you drew. Use 220 grit sandpaper and care-
fully roughen the inside surface of the nylon
clasp.
5)Slidetheclaspbackintopositionandcare-
fullyglue it intoplace using KwikBond Thin C/
A. Hold the clasp in place until the glue com-
pletely cures. Secure by 1 machine
screw.
MOUNTING THE CONTROL CLASP.
2)Using a rulerand a penplace a mark onto
the bottom of the rudder. The back edge of
theclaspshould lineupwiththismark.Youmay
find it necessary to bend the tail wheel wire
down slightly so it lines up with the clasp with-
outbinding.
There are 2 mouting box for your option. It is
depended your motor size.
MOTOR BOX
Controlclasp.
2mm x 12 mm.
Machine Screw
Epoxyglue.
Insertblind nut.
MOTOR BOX
4.5ly.
Motor.

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COWLING INSTALLATION.
1) Using a pen to mark the points follow-
ing the instruction below.
2) Slide the fiberglass cowl over the en-
gineandlineup the back edgeofthecowl with
themarks you madeon the fuselage then trim
and cut.
INSTALLING THE BATTERY.
See pictures below.
Tie wrap or rubber band.
Battery.
Speed control.
Cowling.
Dummy engine.
Silicon glue or C/A glue.
Glue.
4) Slide the cowl back over the motor.
3) While keeping the back edge of the
cowl flush with the marks, align the front of
thecowl with the crankshaft ofthe motor. The
front of the cowl should be positioned so the
crankshaft is in nearly the middle of the cowl
opening.Usethe spinner backplateasaguide.
Hold the cowl firmly in place using pieces of
masking tape.

ET6. Instruction Manual.
14
2mm x 8mm.
The propeller should not touch any part
of the spinner cone. If it does, use a sharp
modeling knife and carefully trim away the
spinner cone where the propeller comes in
contact with it.
5) Secure the cowl with the screw pro-
vide with hardware.
Bolt the wing to fuselage.
ATTACHMENT WING - FUSELAGE.
See pictures below.
BALANCING.
Wood screw. 3mmx10mm
INSTALLING CANOPY.
Glue.
Glue.
Screw.
1) It is critical that your airplane be bal-
anced correctly. Improper balance will cause
yourplanetolosecontrol and crash. The cen-
ter of gravity is locate 2 - 4.5cm back from
theleading edgeofthewing,measured atwing
tip.
Glue.
Wing bolt.
Wing.
Fuselage.
2 - 4,5 cm.

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2) If the nose of the plane falls, the plane
is nose heavy. To correct this first move the
battery pack further back in the fuselage. If
this is not possible or does not correct it, stick
small amounts of lead weight on the fuselage
sides under the horizontal stabilizer. If the tail
of the plane falls, the plane is tail heavy. To
correctthis,move the battery andreceiver for-
ward orif this is not possible, stick weight onto
the firewall. When balanced correctly, the air-
plane should sit level or slightly nose down
when you lift it up with your fingers.
1) We highly recommend setting up the
ET6 usingthecontrolthrowslistedatright. We
have listed control throws for both Low Rate
(initial test flying/sport flying) and High Rate
(aerobaticflying).
CONTROL THROWS.
INITIAL FLYING/SPORT FLYING
Ailerons high rate -3/8” up -3/8” down
Ailerons low rate -3/16” up -3/16” down
Elevatorhighrate -5/16” up -5/16” down
Elevatorlowrate -5/8”up-5/8”down
Do not use the aerobatic settings for
initial test flying or sport flying.
 3) When the elevator, rudder and aileron
control surfaces are centered, use a ruler and
check the amount of the control throw in each
surface. The control throws should be
measured at the widest point of each sur-
face!
2) Turn on the radio system,and with the
trim tabs on the transmitter in neutral, center
the control surfaces by making adjustments
totheclevisesoradjustable servo connectors.
The servo arms should be centered also.
 4) By moving the position of the adjust-
able control horn out from the control surface,
you will decrease the amount of throw of that
control surface. Moving the adjustable con-
trol horn toward the control surface will in-
crease the amount of throw.
FLIGHT PREPARATION.
 A) Check the operation and direction of
the elevator, rudder, ailerons and throttle.
 B) Plug in your radio system per the
manufacturer's instructions and turn every-
thingon.
 E)Check the throttle.
 D) Check the rudder. Looking from be-
hindthe airplane,move the rudder stick to the
right. Theruddershould move to theright. Ifit
does not, flip the servo reversing switch on
your transmitter to change the direction.
 C) Check the elevator first. Pull back on
theelevator stick. The elevatorhalves should
move up. If it they do not, flip the servo re-
versing switch on your transmitter to change
the direction.
 F) From behind the airplane, look at the
aileronontherightwing half. Move the aileron
sticktotheright. The right aileron shouldmove
upandthe other aileronshouldmove down. If
it does not, flip the servo reversing switch on
your transmitter to change the direction.
PREFLIGHT CHECK.
1) Completely charge your transmitter
and receiver batteries before your first day of
flying.
2) Check every bolt and every glue joint
intheET6 toensurethateverythingistightand
wellbonded.
Rudderhighrate-3/4”leftandright
Rudderlowrate-1-1/4‘’ left and right
3) Check the controlsurfaces. All should
move in the correct direction and not bind in
any way.
4) If your radio transmitter is equipped
withdual rate switches double check that they
are on the low rate setting for your first few
flights.
5) Check to ensure the control surfaces
are moving the proper amount for both low
and high rate settings.
6) Check the receiver antenna. It should
be fully extended and not coiled up inside the
fuselage.
7) Properlybalancethe propeller. Anout
of balance propeller will cause excessive vi-
bration which could lead to engine and/or air-
frame failure.
We wish you many safe and enjoyable
flights with your ET6.