Seagull Models SEA EAGLE User manual

“Graphics and specifications may change without notice”.
MS:190
ASSEMBLY MANUAL
Specifications:
Wingspan-----------------------------49.2.in(125cm).
Wingarea-----------------415.4sq.in(26.8sqdm).
Weight------------------------5.1-5.5lbs(2.3-2.5kg).
Length------------------------------50.7in(128.7cm).
Engine ---------------------------0.46cu.in-2-stroke.
0.62cu.in -4-stroke .
Radio-------------------4channelswith5servos.
Electricconversion:optional

SEA EAGLE.Instruction Manual.
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INTRODUCTION.
ThankyouforchoosingtheSEAEAGLEARTFbySEAGULLMODELSCOMPANYLTD.TheSEA
EAGLE wasdesignedwiththeintermediate/advancedsportflyerinmind.Itisa semiscaleairplane
whichiseasytoflyandquicktoassemble.Theairframeisconventionallybuiltusingbalsa,plywood
tomakeitstrongerthantheaverageARTF,yetthedesignallowstheaeroplanetobekeptlight.You
will find that most of the work has been done for you already.The motor mount has been fitted and
the hinges are pre-installed . Flying the SEA EAGLE 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 SEA EAGLE . 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.
IfyouareinexperiencedwithbasicR/CflightwestronglyrecommendyoucontactyourR/Csupplier
and join your local R/C Model Flying Club. R/C Model Flying Clubs offer a variety of training
proceduresdesignedto helpthenewpilot onhiswayto successfulR/Cflight.They willalsobeable
to advise on any insurance and safety regulations that may apply.
KIT CONTENTS
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ADDITIONAL ITEMS REQUIRED.
Glowengine0.46-2-stroke.
Glowengine0.62-4-stroke.
Computer radio with 5 servos.
Glow plug to suit engine.
Propeller to suit engine.
Protective foam rubber for radio
system.
Siliconefuel line.
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.
KIT CONTENTS.TS
The control surfaces, including the
ailerons, 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 using a high-quality
thin C/A glue.
2)Removeeachhingefromthe wing panel
and aileron and place a T-pin in the center of
each hinge. Slide each hinge into the aileron
untiltheT-pinissnugagainsttheaileron.This
will help ensure an equal amount of hinge is
oneitherside ofthehingelinewhen theaileron
is mounted to the wing panel.
Note:
1) Carefully remove the aileron from one
of the wing panels. Note the position of the
hinges.
HINGING THEAILERON .
3) Slide the aileron on the wing panel 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
shouldbemaintainedbetweenthewingpanel
andaileron.
Hinge.
T-pin.
1 Fuselage
2 Wing Set
3 Tail Set
4 Cowling
5 Canopy
6 Main Landing Gear
7 Wing Tube
8 Fiberglass Wheel Pants
9 Tailwheel
10 Wheels
11 Pilot
12 Hardware Set

SEA EAGLE.Instruction Manual.
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8)Afterbothailerons aresecurelyhinged,
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.
Worktheaileron upand down several
times to “work in” the hinges and
check for proper movement.
Note:
4) Deflect the aileron and completely
saturate each hinge with thin C/A glue. The
aileronsfrontsurfaceshouldlightly contact the
wing during this procedure. Ideally, 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.
Thehingeis constructed ofaspecial
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.
Note:
Hinge.
C/Aglue.
6) Using C/A remover/debonder and a
papertowel,removeanyexcessC/Agluethat
may have accumulated on the wing or in the
aileronhingearea.
5)Turnthe wing panel over anddeflectthe
aileron in the opposite direction from the
opposite side. Apply thin C/A glue to each
hinge,makingsurethattheC/A penetratesinto
both the aileron and wing panel.
7) Repeat this process with the other wing
panel, securely hinging the aileron in place.

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Aileroncontrolhorn.
INSTALL THE AILERONS CONTROL
HORN.
1) Locate the hardware necessary to install
the control horns for the ailerons.
HINGING THE RUDDER.
Glue the rudder hinges in place using the
same techniques used to hinge the ailerons.
Hinge.
HINGING THE ELEVATOR.
Glue the rudder hinges in place using the
same techniques used to hinge the ailerons.
Fiberglass control horn.
2)Position the Control horn on the Aileron
and use 30-minute Epoxy
Elevator control horn.
Install the elevator control horn using the
same method as same as the aileron control
horns.
INSTALL ELEVATOR CONTROL HORN.
Fiberglass control horn.
Position the Control horn on the Aileron and
use 30-minute Epoxy
INSTALL RUDDER CONTROL HORN.
Repeatsteps to install the rudder controlhorn
as same as steps done for ailerons.
Fiberglass control horn.
Ruddercontrolhorn.
Epoxy.
Epoxy.
Epoxy.

SEA EAGLE.Instruction Manual.
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5) With the stopper assembly in place,
the weighted pick-up should rest away from
therear of the tank and move freely inside the
tank. The top of the vent tube should rest just
below the top of the tank. It should not touch
the top of the tank.
6) When satisfied with the alignment of
the stopper assembly tighten the 3 x 20mm
machine screw until the rubber stopper ex-
pands and seals the tank opening. Do not
overtighten the assembly as this could cause
the tank to split.
1) Using a modeling knife, carefully cut
off the rear portion of one of the 3 nylon tubes
leaving 1/2” protruding from the rear of the
stopper. This will be the fuel pick up tube.
INSTALLING THE STOPPER ASSEMBLY.
2) Usingamodelingknife, cut one length
ofsiliconfuelline. Connectoneendoftheline
totheweightedfuel pick up and the other end
to the nylon pick up tube.
Venttube. Fuel pick up tube.
Fuel fill tube.
3) Carefully bend the second nylon tube
up at a 45º angle. This tube is the vent tube.
4) Test fit the stopper assembly into the
tank. It may be necessary to remove some of
the flashing around the tank opening using a
modeling knife. If flashing is present, make
sure none falls into the tank.
ENGINE MOUNT INSTALLATION.
1) Locate the items necessary to install the
engine mount included with your model. .
2) Usefour4x30mmheadbolts and four 4mm
washers to attach the engine mount rails to
thefirewall.Tighten the screws . Make sure to
use threadlock on the screws to help prevent
them from vibrating loose.
4x30mm.
FUEL TANK INSTALLATION.
A

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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
thetankis installed inside the fuselage, it may
be difficult to determine which is which.
 7) Slide the fuel tank into the fuselage. Guide
the lines from the tank through the hole in the
firewall.
Fueltank.
 8) Use plywood template to hold in place
the fuel tank with C/A glue to secure the fuel
tank inside the fuselage.
Venttube.
Fuel pick up tube.
Fuel fill tube.
9) Connect the lines from the tank to the engine
and muffler. The vent line will connect to the
muffler and the line from the clunk to the
carburetor.
C/Aglue.
Blow through one of the lines to en-
sure the fuel lines have not become kinked
inside the fuel tank compartment. Air
should flow through easily.
INSTALLING THE FUSELAGE SERVOS.
Throttle servo.
Elevator servo.
Rudder servo.
1) Installtherubber grommets and brass
colletsonto the throttleservo. Testfit the servo
into the aileron servo mount.
 2) Secure the servos with the screws pro-
vided with your radio system.
Because the size of servos differ, you
mayneedtoadjust thesizeoftheprecut open-
ing in the mount. The notch in the sides of the
mount allow the servo lead to pass through.
AdjustableServo
connector.
Servoarm.
Loctite secure.
1PCS.
Throttleservoarm.Elevatorservoarm.
Rudderservoarm.
THROTTLE SERVO ARM INSTALLATION.
Install adjustableservoconnectorinthe servo
arm as same as picture below:
A

SEA EAGLE.Instruction Manual.
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2) Use a pin drill and 2mm drill bit to drill a
small indentation in the mount for the engine
mounting screw.
3) Use a drill to drill the four holes in the engine
mount rails.
4) On the fire wall has the location for the
throttle pusshrod tube (pre-drill).
4.5mm.
2mm.
3/32” Hole.
INSTALLING THE SWITCH.
Installtheswitchintotheprecutholeinthe
side, in the fuselage.
Switch.
Trimand cut.
110mm.
MOUNTING THE ENGINE.
 1) Positiontheenginewith thedrivewasher
(110mm) forward of the firewall as shown.
5) Slide the pushrod tube in the firewall and
guide it through the fuel tank mount. Use
medium C/A to glue the tube to the firewall and
the fuel tank mount.
6) Connect the Z-bend in the 450mm throttle
pushrod to the outer hole of the carburetor arm.
Pushrod tube hole.

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9) Move the throttle stick to the closed position
and move the carburetor to closed. Use a 2.5mm
hex wrench to tighten the screw that secures
the throttle pushrod wire. Make sure to use
threadlock on the screw so it does not vibrate
loose.
1) Locate the items neccessary to install
thewheelandwheelpantstothe landing gear
as shown.
WHEEL AND WHEEL PANTS
INSTALLATION.
wheel collar.
wheel.
Axle.
Washer. M3.
4) Slidethecollartotheaxleandsetscrew
the collars to secure the collar to the axle and
thensliderthewheelontheaxlewithadropof
oilontheaxlesothewheelwillspinfreelywhen
installed. Prepare a second collar and tighten
the setscrew using hex wrench to secure the
collar to the axle.
3) You have to trim each axle using a tool
cutting and cut-off wheel.
Caution when cutting the axles and
wear protective goggles.
2) Follow diagram below for wheel pant
installation:Use a drill and 8mm drill bit to drill
a hole in the wheel pants.
8) Reinstall the servo horn by sliding the
connector over the pushrod wire. Center the
throttle stick and trim and install the servo horn
perpendicular to the servo center line.
Machinescrew M3x25mm.
Pushrodwire.
7) Slide the throttle pushrod wire into the tube.
Position the engine between the mounts. Use
four M3x25mm machine screws to secure the
engine to the mount as shown.

SEA EAGLE.Instruction Manual.
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C/Aglue.
LandingGear. wheel Pant.
Lockerglue.
 7) Tighten the setcrews using a hex
wrench to secure the collars on the axle over
the flat spot to retain the wheel as shown.
Repeat steps as above to attach remain-
ing wheel pants to the landing gear.
INSTALLING THE MAIN LANDING GEAR
TO FUSELAGE.
 8) The blind nuts for securing the landing
geararealreadymountedinsidethefuselage.
 9) Using the hardware provided, mount
the main landing gear to the fuselage.
 10) Place the fuselage inverted on the
workbenchinasuitablestand.Setthelanding
gear in place and use a screwdrive to secure
the landing gear to the fuselage using bolts
M4x20mmandwashers.Makesure to use the
threadlock on the bolts so they don’t vibrate
loose.
wheel Pant.
wheel.
M3.
wheel collar.
nut.
Axle.
Washer.
5) Place the wheel assembly in the wheel
pants. The threaded portion of the axle will fit
the notch of the wheel pant as shown.
6) Slide the threaded end of the axle
through the hole in the bottom of the landing
gear leg. Use a washer and locknut to tighten
the axle to the landing gear. Make sure to use
threadlock on the nut so it won’t vibrate loose
in flight as shown.

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Machine screw M3x10mm.
2) While keeping the back edge of the
cowl flush with the marks, align the front of
thecowlwith the crankshaftoftheengine. The
front of the cowl should be positioned so the
crankshaft is in nearly the middle of the cowl
opening.Usethespinnerbackplateasaguide.
Hold the cowl firmly in place using pieces of
masking tape.
Becauseofthesizeofthecowl,itmaybenec-
essarytouse a needle valve extension for the
highspeedneedlevalve. Makethisoutofsuf-
ficient length 1.5mm wire and install it into the
end of the needle valve. Secure the wire in
placebytighteningtheset screw in the side of
the needle valve.
Trim and cut.
Trim and cut.
COWLING.
1)Slidethefiberglasscowlovertheengine
and line up the back edge of the cowl with the
marksyoumadeonthe fuselage then trimand
cut as shown.
Trim and cut.
Thread locker glue.

SEA EAGLE.Instruction Manual.
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 3) Installthe muffler and mufflerextension
onto the engine and make the cutout in the
cowl for muffler clearance. Connect the fuel
and pressure lines to the carburetor, muffler
and fuel filler valve. Secure the cowl to fuse-
lage using the M3x10mm screws.
ELECTRIC POWER CONVERSION.
1) Locate the items neccessary to install the
electric power conversion included with your
model.
2) Attach the electric motor box to the firewall
suitable with the cross lines drawn on the electric
motor box and firewall. Using epoxy and balsa
stick to secure the motor box to the firewall.
Please see pictures below.
- Model size: .46 size models
- Propeller: 12x6 ~ 13x6
- ESC: 60A
- Lipo Batteries: 4 cell 3200mA
Recommendation EP parts as shown (not
included with your model)
3) Attach the motor to the front of the electric
motor box using four 3mm blind nut, four
M3x15mm hex head bolts to secure the motor.
Please see picture shown.
M4x20mm.
Needlevalve.

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INSTALLING THE SPINNER.
Speed control.
5) Attach the speed control to the side of the
motor box using two-sided tape and tie wraps.
Connect the appropriate leads from the speed
control to the motor. Make sure the leads will
not interfere with the operation of the motor.
Install the spinner backplate, propeller and
spinner cone.
Balsa stick.
Electric motor.
Epoxy.
110mm.
Epoxy.
M3x12mm.
4mm.
Blindnut.
4mm.
Battery.

SEA EAGLE.Instruction Manual.
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INSTALLING THEAILERON - FLAP SERVOS.
Servos. Smallweight.
Thread.
1) Usingasmallweight(Weighted fuelpick-up
workswell)andstring, feedthestring through
the wing as indicated.
Because the size of servos differ, you
mayneedtoadjustthesize oftheprecutopen-
ing in the mount. The notch in the sides of
themountallowtheservoleadtopassthrough.
2) Place the servo between the mounting
blocksandspaceitfromthehatch.Usea pencil
to mark the mounting hole locations on the
blocks.
3) Use drill bit in a pin vise to drill the mouting
holes in the blocks.
4) Apply 2-3 drops of thin C/A to each of the
mounting holes.Allow the C/Ato cure without
using accelerator.
6) Secure the servo to the aileron hatch using
Phillips screwdriver and the screws provided
with the servo.
5) Use dental floss to secure the connection
so they cannot become unplugged.
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.

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9) Set the aileron hatch in place and use a
Phillips screw driver to install it with four wood
screws.
8) A string has been provided in the wing to
pull the aileron lead through to the wing root.
Remove the string from the wing at the servo
location and use the tape to attach it to the
servoextensionlead.Pulltheleadthroughthe
wing and remove the string.
AILERONPUSHROD HORN INSTALLATION
Mark.
Pen.
7) Apply 1-2 drops of thin C/A to each of the
mounting tabs. Allow the C/A to cure without
using accelerator.
M2x10mm.

SEA EAGLE.Instruction Manual.
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Snapkeeper.
Servoarm.
3) Connect the linkage as shown and secure
the control wire with a snap keeper.
Wing.
Aileron.
M2lock.
8mm Snapkeeper.
2)Makea90-degreebendatthemarkand cut
offtheexcesswire leaving 8mmpastthebend.
M2 lock nut. Metalclevis.
1) Mark the control wire where it crosses the
servo arm hole.
Bend at the mark.
Cut.
8mm.
Cut.
 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.
INSTALLING THEHORIZONTALSTABILIZER.
1) Using a ruler and a pen, locate the
centerlineofthehorizontalstabilizer,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
thismarkdown the back of the trailing edgeof
the stabilizer.
Draw center line.
2)Usingamodelingknife,carefullyremove
thecoveringatmountingslotofhorizontalsta-
bilizer ( both side of fuselage).

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INSTALLING VERITICAL FIN.
Whencuttingthroughthecoveringtore-
move it, cut with only enough pressure
toonly cut through the covering itself. Cutting
into the balsa structure may weaken it.
Pen.
Epoxy.
Trimand cut.
 5) Removethe stabilizer. Usingthelines
youjustdrew as a guide, carefully remove the
covering from between them using a model-
ingknife.
 6) Using a modeling knife, carefully re-
move the covering that overlaps the stabilizer
mounting platform sides in the fuselage. Re-
move the covering from both the top and the
bottom of the platform sides.
 7) When you are sure that everything is
aligned correctly, mix up a generous amount
of 30 Minute Epoxy. Apply a thin layer to the
topandbottomofthestabilizermountingarea
and to the stabilizer mounting platform sides
in the fuselage. Slide the stabilizer in place
and realign. Double check all of your mea-
surementsoncemorebeforetheepoxycures.
HoldthestabilizerinplacewithT-pinsormask-
ing tape and remove any excess epoxy using
a paper towel and rubbing alcohol.
1) Using a modeling knife, remove the
covering from over the precut hinge slot cut
into the lower rear portion of the fuselage.
Remove covering.
 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.
Fill epoxy.
Fill epoxy.

SEA EAGLE.Instruction Manual.
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Fill epoxy.
90º
Vertical
Stabilizer.
Horizontal
Stabilizer.
Epoxy.
3) Slide the vertical stabilizer back in
place. Using a triangle, check to ensure that
theverticalstabilizeris aligned 90º to the hori-
zontal stabilizer.
Fill epoxy.
2) 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.
4) When you are sure that everything is
alignedcorrectly,mixupagenerous amountof
Flash30Minute Epoxy. Applyathinlayertothe
mounting slot and to bottom of the vertical sta-
bilizer mounting area. Apply epoxy to the bot-
tomandtopedges of the filler block and to the
lower hinge also. Set the stabilizer in place
andrealign. Doublecheckallofyour measure-
mentsoncemore beforetheepoxycures. Hold
the stabilizer in place with T-pins or masking
tape and remove any excess epoxy using a
papertowelandrubbingalcohol. Allow the ep-
oxy to fully cure before proceeding.
Hinges
.
Epoxy.
MOUNTING THE TALI WHEEL.
1) Locate the items for this section of the
manual.
Epoxy.

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M3 x 12mm.
1
Elevator pushrod.
490mm.
Cut.
 4) Elevatorandrudder pushrodsassembly
as pictures below.
 3) Thread one clevis and M2 lock nut on
toeachelevatorcontrolrod. Threadthehorns
onuntiltheyareflushwiththeendsofthecon-
trol rods.
ELEVATOR PUSHROD HORN
INSTALLATION.
Elevator fiberglass
control horn.
Rudder fiberglass
control horn.
Elevator fiberglass
control horn.
 1) Install the elevator fiberglass control
horn using the same method as with the
aileron fiberglass control horns.
 2) Position the elevator fiberglass control
horn on the both side of elevator. M2lock nut.
Metalclevis.
Elevator pushrod.
M3 x 12mm.

SEA EAGLE.Instruction Manual.
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Pen.
8mm.
Wire keeper.
RUDDER PUSHROD HORN
INSTALLATION.
8mm.
M2 lock nut . M2clevis.
Rudder fiberglass
control horn.
Elevator fiberglass
control horn.
Pen.
Elevator pushrod.
Rudder pushrod.