Seagull Models DUAL ACE Manuel utilisateur
Kit features.
• Factory-installedpushrods.
• Hardwarepack withwheels,tank,undercarriage.
• Photo-illustratedstep-by-stepAssemblyManual.
MadeinVietnam.
Specifications
Wingspan------------------------------------------70in-----------------------------177cm.
Wing area------------------------------------- 862sq.in---------------------- 55.6 sq.dm.
Approximate flying weight-------------------- 11lbs--------------------------------- 5kg.
Length----------------------------------------------59in---------------------------149.5cm.
Recommended engine size-----------------.46 cu.in(2pcs)-------------- 2-stroke.
Radio System required 6 channels with 7 digital servos.
Flying skill level Intermediate/advanced.
Hand-made Almost Ready to Fly R/C Model Aircraft
ASSEMBLY MANUAL
DUDU
DUDU
DUALAL
ALAL
AL AA
AA
ACECE
CECE
CE
DUAL ACE.
InstructionManual.
2
INTRODUCTION.
Thank you for choosing the DUAL ACE ARTF by SEAGULL MODELS. The DUAL ACE was
designedwiththeintermediate/advancedsportflyerinmind.Itisa airplane whichiseasytoflyand
quicktoassemble.Theairframeisconventionallybuiltusingbalsa,plywood tomakeitstrongerthan
theaverageARTF,yetthedesignallowstheaeroplanetobekeptlight.Youwillfindthatmostofthe
work has been done for you already.Flying the DUAL ACE 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 DUAL ACE. 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
proceduresdesignedtohelpthe newpiloton hiswaytosuccessfulR/Cflight.Theywill alsobeable
to advise on any insurance and safety regulations that may apply.
ADDITIONAL ITEMS REQUIRED.
!.46cu.in 2 - stroke engine (2pcs).
!Computer radio with seven digital
servos.
!Glow plug to suit engine.
!Propeller to suit engine.
!Protective foam rubber for radio
system.
!Siliconefuelline.
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.
PARTS LISTING.
FUSELAGE ASSEMBLY
!(1) Fuselage.
!(1) Canopy hatch.
WING ASSEMBLY
!(1) Right wing half with pre-installed
aileron.
!(1) Left wing half with pre-installed
aileron.
!(1) Aluminium dihedral brace.
Tail section assembly
!(1) Horizontal stabilizer with pre-
installedelevator halves.
!(1) Vertical stabilizer with pre-
installed rudder halves.
Some more parts.
HARDWAREPACK
COWLING
Landinggear.....
DUAL ACE. Instruction Manual.
3
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 DUAL ACE is made
from natural materials and minor ad-
justments 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. Donot letthese chemi-
calscomein contact withthe colours
onthe coveringand theplastic parts.
DUAL ACE.
InstructionManual.
4
!4)Deflect the aileron and completely
saturate each hinge with thin C/A glue. The
aileronsfront surfaceshould lightlycontact 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.
Note:
The control surfaces, including the
ailerons, elevators, and rudder, are
prehinged with hinges installed, but the
hinges are not glued in place. It is
imperativethatyou properlyadhere the
hingesinplace perthesteps thatfollow
using a high-quality thin C/A glue.
!1) Carefully remove the aileron from one
of the wing panels. Note the position of the
hinges.
!2)Removeeach hingefrom the wingpanel
and aileron and place a T-pin in the center of
each hinge. Slide each hinge into the aileron
untiltheT-pinis snugagainstthe aileron.This
will help ensure an equal amount of hinge is
oneither sideofthe hingelinewhentheaileron
is mounted to the wing panel.
HINGING THE AILERONS.
Note:
The hinge is constructed of a special
material that allows the C/A to wick or
penetrateand distributethroughout the
hinge, securely bonding it to the wood
structureofthe wingpanel andaileron.
!7) Repeat this process with the other wing
panel, securely hinging the aileron in place.
!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
shouldbemaintained betweenthe wingpanel
andaileron.
!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,makingsurethattheC/Apenetratesinto
both the aileron and wing panel.
!6) Using C/A remover/debonder and a
papertowel,removeanyexcess C/Aglue that
may have accumulated on the wing or in the
aileronhingearea.
Hinge.
T-pin.
T-pin.
C/Aglue.
C/Aglue.
DUAL ACE. Instruction Manual.
5
!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.
Note:Work the aileron up and down several
times to “work in” the hinges and check
for proper movement.
!1) Carefully remove the elevator from one
of the horizontal stabilizer panels. Note the
position of the hinges.
!2) Remove each hinge from the horizontal
stabilizerpanelandelevator andplace aT-pin
in the center of each hinge. Slide each hinge
intotheelevator untiltheT-pin is snugagainst
the elevator. This will help ensure an equal
amount of hinge is on either side of the hinge
line when the elevator is mounted to the
horizontal stabilizer panel.
1/64”gaporlesswillbemaintainedthroughout
the lengh of the elevator to the horizontal
stabilizer panel hinge line.
Note: The hinge is constructed of a special
material that allows the C/A to wick or
penetrateand distributethroughout the
hinge, securely bonding it to the wood
structure of the horizontal stabilizer
panel and elevator.
!5) Turn the horizontal stabilizer panel over
and deflect the elevator in the opposite
directionfrom theoppositeside.Apply thinCA
glue to each hinge, making sure that the C/A
penetratesintoboththeelevatorand horizontal
stabilizer panel.
HINGING THE ELEVATORS.
!3) Slide the elevator on the horizontal
stabilizer panel until there is only a slight gap.
The hinge is now centered on the horizontal
stabilizer panel and elevator. Remove the T-
pins and snug the elevator against the
horizontal stabilizer panel. A gap of 1/64” or
less should be maintained between the
horizontal stabilizer panel and elevator.
!4)Deflect the elevator and completely
saturate each hinge with thin C/A glue. The
elevators front surface should lightly contact
thehorizontalstabilizer duringthis procedure.
Ideally, when the hinges are glued in place, a
T-pins.
Hinges.
C/Aglue.
C/Aglue.
DUAL ACE.
InstructionManual.
6
!4)Deflect the rudder and completely
saturate each hinge with thin C/A glue. The
rudder front surface should lightly contact the
verticalfin duringthis procedure.Ideally, when
the hinges are glued in place, a 1/64” gap or
less will be maintained throughout the lengh
of the rudder to the fuselage panel hinge line.
!1) Carefully remove the rudder from the
vertical fin. Note the position of the hinges.
!2) Placing a T-pin in the center of each
hinge. Slide each hinge into the rudder until
the T-pin is snug against the rudder. This will
help ensure an equal amount of hinge is on
eithersideof thehinge linewhenthe rudderis
mounted to the fuselage panel.
Note:
!3) Slide the rudder on the vertical fin until
there is only a slight gap. The hinge is now
centered on the fuselage panel and rudder.
Remove the T-pins and snug the rudder
against the fuselage panel. A gap of 1/64” or
lessshouldbemaintainedbetween thevertical
fin panel and rudder.
!5)Turntheverticalfinpaneloveranddeflect
the rudder in the opposite direction from the
opposite side. Apply thin C/A glue to each
hinge,makingsurethattheC/Apenetratesinto
the rudder and fuselage panel.
HINGING THE RUDDER.
!8) Afterboth elevatoraresecurely hinged,
firmlygraspthehorizontalstabilizer paneland
elevatortomake surethehinges are securely
glued and cannot be pulled out. Do this by
carefully applying medium pressure, trying to
separate the elevator from the horizontal
stabilizer panel. Use caution not to crush the
horizontal stabilizer structure.
Hinges.
C/Aglue.
The hinge is constructed of a special
material that allows the C/A to wick or
penetrateand distributethroughoutthe
hinge, securely bonding it to the wood
structure of the fuselage panel and
rudder.
!6)UsingC/Aremover/debonderandapaper
towel, remove any excess C/A glue that may
have accumulated on the horizontal stabilizer
or in the elevator hinge area.
!7) Repeat this process with the other
horizontalstabilizerpanel,securelyhinging the
elevator in place. Hinges.
T-pins.
C/Aglue.
DUAL ACE. Instruction Manual.
7
!6)UsingC/Aremover/debonderandapaper
towel, remove any excess C/A glue that may
have accumulated on the fuselage or in the
rudder hinge area.
Note:Work the rudder left and right several
times to “work in” the hinges and check
for proper movement.
INSTALLING THE AILERON SERVOS.
Attach the string to the servo lead and
carefully thread it though the wing. Once you
havethreadtheleadthroughtthewing,remove
the string so it can use for the other servo
lead.Tapethe servoleadtothewingtoprevent
it from falling back into the wing.
Servo.
Small weight.
Thread.
We recommended to use long servos
arm for all servos without throttle
servo.
Because the size of servos differ, you
may need to adjust the size of the precut
opening in the mount. The notch in the
sides of the mount allow the servo lead to
pass through.
Install the rubber grommets and brass
colletsontotheaileronservo. Testfit theservo
into the aileron servo mount.
Install the servo into the servo tray.
Using a small weight (Weighted fuel pick-up
workswell)and thread, feed thestring through
the wing as indicated.
Secure the servos with the screws pro-
vided from your radio system.
Small weight.
Thread.
Small weight.
Wing bottom.
Thread.
Thread.
Electric wire.
DUAL ACE.
InstructionManual.
8
AILERON LINKAGE.
INSTALLING THEAILERONLINKAGE.
!1) Using a ruler & pen to draw a straight
line as below picture.
Install the aileron servo tray into the servo
mount.
Repeat the procedure for orther wing
haft.
!!!
!!
!2) Locate the nylon control horns,nylon
control horn backplates and three machine
screws.
!!!
!!
!3)Positionthe aileronhornon thebottom
side of aileron. The clevis attachment holes
should be positioned over the hinge line.
Aileronelectric.
Plastic tape.
Wing panel bottom.
Pull.
Electric wire.
Thread.
Pen.
Servo arm.
Straighline.
DUAL ACE. Instruction Manual.
9
2mmx20mm.
3mmx30mm.
! 4) Using a 1.5mm drill bit and the control
horns as a guide, drill the mounting holes
through the aileron halves.
!
5)Mount the control horns by inserting the
bolts through the control horn bases and
aileron halves, then into the mounting
backplates. Do not overtighten the nuts or the
backplates may crush the wood.
ControlHorn.
MountingScrews.
MountingPlate.
3MM x30mm.
2MM x 20mm.
C/Aglueattach.
! 6)Threadonenylonadjustablecontrolhorn
on to each aileron control rod. Thread the
horns on until they are flush with the ends of
the control rods.
M2 lock nut. Snapkeeper.
M2clevis.
Ailerontorquerod.
Clevis.
Pen.
Cut.
M3locknut.
DUAL ACE.
InstructionManual.
10
FUEL TANK.
!1) Using a modeling knife, carefully cut
offtherearportionofone ofthetwonylontubes
leaving 1/2” protruding from the rear of the
stopper. This will be the fuel pick up tube.
!2) Usingamodeling knife,cut onelength
ofsiliconfuel line(not included)to2-1/4” long.
Connect one end of the line to the weighted
fuelpickupand theotherend tothe nylon pick
up tube.
!4) Carefully heat the vent tube using a
heat gun or lighter to permanently set the
angle of the tube.
When the stopper assembly is installed in
the tank, the top of the vent tube should rest
justbelow thetop surfaceofthetank. Itshould
not touch the top of the tank.
INSTALLING THE STOPPER ASSEMBLY.
!3) Carefully bend the second nylon tube
up at a 45º angle. This tube is the vent tube.
Venttube.
Fuelline.
Clunk.
White glue or
epoxyglue.
Repeat the procedure for the other
aileron servo.
See pictures below.
ATTACHMENT ENGINE MOUNTING
BOX.
Push.
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