Seagull Models SPARROW HAWK 1.6-2.0 Manuale utente

MadeinVietnam.

ASSEMBLY MANUAL

MS: SEA 71

“Graphics and specfications may change without notice”.

Kit features.

• Ready-made—minimalassembly&finishingrequired.

• Ready-coveredcovering.

• Photo-illustratedstep-by-stepAssemblyManual.

Specifications

Wingspan-------------------------------------70.9in----------------------------180cm.

Wing area-------------------------------------945.5 sq.in------------------- 61 sq.dm.

Approximate flying weight-------------- 10.6 - 11.5 lbs----------------4.8-5.2kg.

Length--------------------------------------------61.3in-------------------------155cm.

Recommended engine size--------------1.6 cu.in ---------------------2-stroke.

1.8-2.0 cu.in--------------------- 4-stroke.

Radio System required 4 channels with 6 digital servos/karbonite

or metal gear.

Flying skill level Intermediate/advanced.

Item code : 71

SPARROW HAWK Instruction Manual

INTRODUCTION.

ThankyouforchoosingtheSPARROW HAWK ARTFbySEAGULLMODELS.TheSPARROW

HAWK wasdesignedwiththeintermediate/advancedsportflyerinmind.Itisa scale airplane which

iseasytoflyandquicktoassemble.Theairframeisconventionallybuiltusingbalsa,plywoodtomake

itstrongerthantheaverageARTF,yetthedesignallowstheaeroplanetobekeptlight.Youwillfind

thatmostoftheworkhasbeendoneforyoualready. Themotormounthasbeenfittedandthehinges

are pre-installed . Flying the SPARROW HAWK is simply a joy.

This instruction manual is designed to help you build a great flying aeroplane. Please read this

manualthoroughlybeforestartingassemblyofyourSPARROWHAWK.Usethepartslistingbelow

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

proceduresdesignedtohelpthenewpilotonhiswaytosuccessfulR/Cflight.Theywillalsobeable

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

ADDITIONAL ITEMS REQUIRED.

.1.6 cu.in 2-stroke engine

.1.8 - 2.0 4-stroke engine

Radio System required 4 channels

with 6 digital servos/karbonite or

metal gear.

Propeller to suit engine

Protective foam rubber for radio

system

Silicone fuel 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

(1) Right wing half/ aileron

(1) Left wing half with/ aileron

(1) Aluminium dihedral brace

Tail section assembly

(1) Horizontal stabilizer/ elevator

halves.

(1) 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-

semblyasthe SPARROWHAWK is

made from natural materials and

minor adjustments may have to be

made. Thepaint andplastic parts

used in this kit are fuel proof. How-

ever, they are not tolerant of many

harshchemicalsincludingthefollow-

ing:paintthinner,cyano-acrylateglue

accelerator, cyanoacrylate glue de-

bonderandacetone.Donotletthese

chemicals come in contact with the

coloursonthe coveringandtheplas-

tic parts.

1) Carefully remove the aileron from one

of the wing panels. Note the position of the

hinges.

2)Removeeach hinge fromthewingpanel

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

ofhingeison either sideofthehingeline 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 betweenthe wingpanel

andaileron.

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 youproperly adhere the

hingesin placeper the steps that follow

using a high-quality thin C/A glue.

Note:

4)Deflect the aileron and completely

saturate each hinge with thin C/A glue. The

aileronsfrontsurfaceshould lightly contactthe

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 hinge is constructed of a special

material that allows the C/A to wick or

penetrateanddistributethroughout the

hinge, securely bonding it to the wood

structureof the wingpanel and aileron.

Hinge

T-pins.

C/Aglue.

T-pins

Hinge.

SPARROW HAWK Instruction Manual

HINGING THE ELEVATOR.

8)Afterbothailerons are securelyhinged,

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.

5)Turn the wingpanel over anddeflect the

aileron in the opposite direction from the

opposite side. Apply thin C/A glue to each

hinge,makingsurethatthe C/A penetratesinto

both the aileron and wing panel.

6) Using C/A remover/debonder and a

papertowel, remove anyexcess C/A gluethat

may have accumulated on the wing or in the

aileronhinge area.

HINGING THE RUDDER.

Glue the elevator hinges in place using the

same tectniques used to hinge the ailerons.

Glue the rudder hinges in place using the

same tectniques used to hinge the ailerons.

Work the aileron up and down several

times to “work in” the hinges and check

for proper movement.

Note:

ENGINE MOUNT INSTALLATION.

Mark and drill 4 holes for engine mount.

Insert 4 blind nuts to firewall.

4x30mm.

see pictures below.Make yourself the

template of your engine on paper.

Hinge.

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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.

INSTALLING THE STOPPER ASSEMBLY.

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.

Venttube. Fuel pick up tube.

Fuel fill tube.

5) With the stopper assembly in place,

the weighted pick-up should rest away from

therear of thetank and move freely insidethe

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.

2) Usinga modelingknife, cut onelength

ofsiliconfuel line. Connectoneend oftheline

tothe weightedfuel pick up andthe otherend

to the nylon pick up tube.

Carefully use a lighter or heat gun to

permenently set the angle of the vent tube.

Important: When the stopper assembly is in-

stalled 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.

Thread locker glue. Balsa wood.

Silicon tubing not inclued.

SPARROW HAWK Instruction Manual

Blow through one of the lines to ensure

thefuel lines have not becomekinked in-

side the fuel tank compartment. Air should

flowthrough easily.

INSTALLING THE BATTERY.

Attach the silicone fuel and pressure pipes

tothetank. The lowerpipeis the ‘feed’andthe

uppertwo the ‘pressureand fill’.The fill pipeis

the next pipe.

Battery.

Fuel tank possition.

Rubber band.

Fuel pick-up

tube.

Venttube.

Fuelfill tube.

 2) Place your engine onto the engine

mount. Adjust the engine is centered of the

edges of the engine case.

 3) When you are satisfied with the align-

ment, mark the locations of the engine

mounting.

1) Install the pushrod housing through the

predrilledholein the firewallandinto the servo

compartment. The pushrod housing should

protrude 1/4" out past the front of the firewall.

MakeaZ-Bend 1/4" fromone end oftheplain

wire pushrod.

MOUNTING THE ENGINE.

 2) Install the pushrod throttle.

AdjustableServo

connector.

Servoarm.

THROTTLE SERVO ARM

INSTALLATION.

1) Install adjustable servo connector in

the servo arm.

Throttleservoarm.

Loctite secure.

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.

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 6) AttachtheZ-Bendin thepushrodwire to

the throttle arm on the carburetor.

 5) Bolttheengineto theenginemountusing

the four machine screws. Double check that

all the screws are tight before proceeding.

4) Remove the engine. Using an drill bit,

drill the mounting holes through the engine

mount at the four locations marked.

Machine Screw 5x35mm.

150mm.

Pushrod wire.

COWLING INSTALLATION.

1) Slide the fiberglass cowl over the en-

gineandline up thebackedge of thecowlwith

themarks youmade on thefuselage thentrim

and cut.

2) While keeping the back edge of the

cowl flush with the marks, align the front of

thecowlwiththecrankshaftoftheengine. 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.

Trim and cut.

3 x 15mm.

5.2mm.

Machine Screw 3x15mm.

Trim and cut.

SPARROW HAWK Instruction Manual

Install the spinner backplate, propeller and

spinner cone.(Spinner is not included).

INSTALLING THE SPINNER.

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.

3) Installthemufflerandmufflerextension

onto the engine and make the cut out 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 3x15mm screws (4).

1) Installthe rubbergrommets and brass

colletsonto thethrottleservo. Test fit theservo

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

mayneedtoadjustthesize of the precutopen-

ing in the mount. The notch in the sides of the

mount allow the servo lead to pass through.

THROTTLE-ELEVETOR-RUDDER

SERVO INSTALLING.

Elevator servo.

Throttle Servo .

Rudder servo.

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Switch.

Attach the string to the servo lead and

carefully thread it though the wing. Once you

havestringthelead throught thewing,remove

the string so it can use for the other servo

lead.Tapetheservoleadtothewingtoprevent

it from falling back into the wing.

INSTALLING THE AILERON SERVOS.

Using a small weight (Weighted fuel pick-up

workswell)and string, feed thestring through

the wing as indicated.

Servos.

Small weight.

String.

Small weight. String.

String.

Electric wire.

Switch.

INSTALLING THE SWITCH.

Installthe switch intothe precut holeinthe

side of the fuselage.

String.

Small weight.

Because the size of servos differ, you

mayneedtoadjustthesize of the precut open-

ing in the mount. The notch in the sides of

themountallowtheservoleadtopassthrough.

SPARROW HAWK Instruction Manual

Repeat the procedure for other wing

haft.

Secure the servos with the screws pro-

vided with your radio system.

Pull.

Electric wire.



1) Aileron control horn:

Mix a small amount of 30 minute epoxy and

lightly coat the inside of the hole in the aileron

and the 3x45mm control horn screw.

AILERONCONTROLHORN INSTALLATION.

3x45mm.

3.2mm.

M lock nut.

3Wing bottom.

M nut.

control horn.

Aluminium washer.

Pre-drill at factory.

Aileron Electric.

Plastic tape.

Aileroncontrol horn.

String. Wing. Aileron.

 2) Thread the screw (insert the washer)

intotheholefromthetopofsurface.Wipeaway

any excess epoxy on the wing and screw with

rubbing alcohol and a paper towel. Screw the

M3 nut (insert the washer) in place as shown.

Alllow the epoxy to fully cure.

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