Seagull Models DUAL ACE User manual

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

DUALAL

ALAL

AL AA

ACECE

CECE

DUAL ACE.

InstructionManual.

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.

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)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.

C/Aglue.

DUAL ACE. Instruction Manual.

!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.

DUAL ACE.

InstructionManual.

!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.

!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.

Electric wire.

DUAL ACE.

InstructionManual.

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.

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.

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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