Seagull Models Ultimate User manual

Kit features.

• Ready-made—minimalassembly&finishingrequired.

• Ready-coveredcovering.

• Photo-illustratedstep-by-stepAssemblyManual.

MadeinVietnam.

Specifications

Wingspan-------------------------------------------54.3in--------------------------138cm.

Wingarea---------------------------------------992sq.in-----------------------64sq.dm.

Weight-----------------------------------------9.2-10.6lbs-----------------------4.2-4.8kg.

Length------------------------------------------------59.4in--------------------------151cm.

Recommendedenginesize----------.91-1.25cu.in-----------------------2-4stroke.

Radio System required 6 channel with 6 digital servos.

Flyingskilllevel---------------------ntermediate/advanced.

ASSEMBLY MANUAL

ULTIMATE. Instruction Manual.

INTRODUCTION.

Thank you for choosing the ULTIMATE ARTF by SEAGULL MODELS. The ULTIMATE was

designed with the intermediate/advanced sport flyer in mind. It is a semi scale airplane which is

easytoflyandquicktoassemble.Theairframeisconventionallybuiltusingbalsa,plywood tomake

itstrongerthantheaverageARTF,yetthedesignallowstheaeroplanetobekeptlight.Youwillfind

that most of the work has been done for you already.Flying the ULTIMATE 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 ULTIMATE. 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 pilot onhiswaytosuccessfulR/Cflight.Theywillalsobeable

to advise on any insurance and safety regulations that may apply.

ADDITIONAL ITEMS REQUIRED.

!.91-1.25 2-4 stroke engine.

!Computer radio with six digital

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.

PARTS LISTING.

FUSELAGE ASSEMBLY

!(1) Fuselage.

!(1) Canopy hatch.

WING ASSEMBLY

!(2) Right wing half with pre-installed

aileron.

!(2) Left wing half with pre-installed

aileron.

!(2) Aluminium dihedral brace.

Tail section assembly

!(1) Horizontal stabilizer with pre-

installedelevatorhalves.

!(1) Vertical stabilizer with pre-

installed rudder halves.

Some more parts.

HARDWAREPACK

COWLING

Landinggear.....

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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 ULTIMATE 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.Donotlet these chemi-

calscome incontact with the colours

onthecoveringand the plastic parts.

ULTIMATE. Instruction Manual.

T-pin.

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.

!1) Carefully remove the aileron from one

of the wing panels. Note the position of the

hinges.

!2)Removeeachhinge from the wingpanel

and aileron and place a T-pin in the center of

each hinge. Slide each hinge into the aileron

untiltheT-pinis snug againstthe aileron.This

will help ensure an equal amount of hinge is

oneithersideofthehingeline when the aileron

is mounted to the wing panel.

HINGING THE AILERONS.

Note:

!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

shouldbe maintained betweenthe wing panel

andaileron.

!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

!5)Turnthe wingpanel over anddeflect the

aileron in the opposite direction from the

opposite side. Apply thin C/A glue to each

hinge,makingsure that theC/Apenetratesinto

both the aileron and wing panel.

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.

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:

Hinge.

T-pin.

Hinge.

T-pin.

C/Aglue.

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Work the aileron up and down several

times to “work in” the hinges and check

for proper movement.

Glue the elevator hinges in place using the

same tectniques used to hinge the ailerons.

HINGING THE ELEVATORS.

Note:

!8)Afterbothailerons 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.

!7) Repeat this process with the other wing

panel, securely hinging the aileron in place.

!6)UsingC/Aremover/debonderandapaper

towel, remove any excess C/A glue that may

haveaccumulatedonthewingor in the aileron

hingearea.

C/Aglue.

HINGING THE RUDDER.

Because the size of servos differ, you

mayneedto adjust thesizeoftheprecutopen-

ing in the mount. The notch in the sides of

themountallowtheservoleadtopassthrough.

Thread. Small weight.

We recommended to use long servos arm

for all servos without throttle servo.

Install the rubber grommets and brass

collets onto the aileron servo. Test fit the

servo into the aileron servo mount.

Using a small weight (Weighted fuel pick-up

workswell) and thread, feedthestring through

the wing as indicated.

Servo.

Small weight.

Thread.

INSTALLING THE AILERON SERVOS

(LOWER WING).

Glue the rudder hinges in place using the

same tectniques used to hinge the ailerons.

ULTIMATE. Instruction Manual.

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.

Lower wing

bottom.

Thread.

Small weight.

Electric wire.

Thread.

Repeat the procedure for orther wing

haft.

Secure the servos with the screws pro-

vided with your radio system.

Lower wing bottom.

INSTALLING THE AILERON LINKAGE

(LOWER WING).

Lower wing panel

bottom.

Thread.

Electric wire.

Pull.

Plastic tape.

Aileronelectric.

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3x40mm.

2 sets.

drillhole

3.2mm.

Wing bottom.

1-1

Lower wing bottom.

1-1

3x30mm.

1-1

M2 lock nut. Snapkeeper.

M2clevis.

Repeat the procedure for the other

aileron servo.

Parts requirement. See pictures below:

1.8x180mm.

Wing bottom.

Cut.

1-1

ULTIMATE. Instruction Manual.

Repeat the procedure for the other

wing haft.

Grind.

1-1

Lower wing top.

Drill hole1.5mm.

1-1

ENGINE MOUNT.

See pictures below:

Mark and drill 4 holes for engine mount.

4x30mm.

Repeat the procedure for the other

wing half.

INSTALLING THE AILERON LINKAGE

(UPPER WING).

Parts requirement. See pictures below:

3x30mm.

Upper wing bottom.

Cut.

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!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.

!2) Usinga modeling knife,cut one length

ofsiliconfuel line. Connect oneendof the line

tothe weighted fuelpick up and the other end

to the nylon pick up tube.

!3) Carefully bend the second nylon tube

up at a 45º angle. This tube is the vent tube.

INSTALLING THE STOPPERASSEMBLY.

FUEL TANK. Venttube.

FuelPick-upTube.

FuelFill Tube.

Carefully use a lighter or heat gun to

permenently set the angle of the vent tube.

Important: When the stopper assembly is

installed in the tank, the top of the vent tube

should rest just below the top surface of the

tank. It should not touch the top of the tank.

!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.

!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.

Attach the silicone fuel and pressure pipes

tothetank. The lower pipeisthe ‘feed’ and the

uppertwo the ‘pressureand fill’. Thefill pipe is

the next pipe.

!6) When satisfied with the alignment of

thestopperassemblytighten the 3mm x20mm

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.

Balsa wood.

ULTIMATE. Instruction Manual.

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 difficult to determine which is which.

14mm.

7mm.

Blow through one of the lines to ensure

the fuel lines have not become kinked inside

the fuel tank compartment. Air should flow

through easily.

!2) Follow diagram below for wheel pant

installation:

!1) Assembleand mountingthewheelpants

as shown in the following pictures.

WHEEL AND WHEEL PANTS.

WheelCollar.

Axle.

Wheel. Nut.

Wheel Pant.

LandingGear.

Nut.

Plywood Washer.

Fuel pick-up

tube. Fuelfill tube.

Venttube.

Balsa wood.

Fueltank.

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