Seagull Models SPARROW HAWK 1.6-2.0 Manual de usuario
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
2
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.
Hinge.
SPARROW HAWK Instruction Manual
4
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
6
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.
Trim and cut.
SPARROW HAWK Instruction Manual
8
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
10
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.
3
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.
Este manual sirve para los siguientes modelos
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