Seagull Models Turbo Raven User manual

“Graphics and specifications may change without notice”.
ASSEMBLY MANUAL
MS: 117
Specifications:
Wingspan-------------------------59.8in(152cm).
Wingarea--------------592.1sq.in(38.2sqdm).
Weight--------------------6.4-7.1lbs(2.9-3.2kg).
Length------------------------------51.2in(130cm).
Engine -------------.46-.55cu.in-----2-stroke.
.52 - .72cu.in -----4-stroke.
Radio-----------------4channelswith5servos.

TURBO RAVEN. Instruction Manual
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INTRODUCTION.
Thank you for choosing the TURBO RAVEN ARTF by SEAGULL MODELS. The TURBO
RAVEN was designed with the intermediate/advanced sport scale in mind. It is a semi scale
airplane whichiseasytoflyandquick toassemble.Theairframeisconventionallybuiltusingbalsa,
plywood tomakeitstrongerthantheaverageARTF,yetthedesignallowstheaeroplanetobekept
light. You will find that most of the work has been done for you already. The motor mount has been
fitted and the hinges are pre-installed . Flying the TURBO RAVEN is simply a joy.
This instruction manual is designed to help you build a great flying aeroplane. Please read this
manualthoroughlybeforestartingassemblyofyourTURBO RAVEN.Usethepartslistingbelowto
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
proceduresdesigned to helpthenewpilotonhis way tosuccessfulR/Cflight.Theywill alsobeable
to advise on any insurance and safety regulations that may apply.
KIT CONTENTS
1
2
9
3
45
5
8
6
7
10 8.1
10
10
10
10
10
9
8.2
11
12

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ADDITIONAL ITEMS REQUIRED.
.46- .55 cu.in 2-stroke
.52- .72 cu.in 4-stroke
Radio System required 4 channels
with 5 servos.
Glow plug to suit engine
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
KIT CONTENTS
1 Fuselage
2 Canopy
3 Left wing panel
4 Right wing panel
5 Tail set
6 Aluminum wing tube
7 Scale pilot
8 70mm wheels (2)
8.1 Tail wheel gear
8.2 Main landing gear
9 EP conversion pack
10 Hardware bag included
11 Wheel pants (2)
12 Fiberglass cowl
2)Removeeachhingefromthewingpanel
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
ofhingeisoneithersideofthehingelinewhen
the aileron is mounted to the aileron.
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 properly adherethe
hingesin place perthesteps that follow
using a high-quality thin C/A glue.
Note:
HINGING THE AILERONS.
Hinge.
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
shouldbemaintained between the wingpanel
andaileron.
1) Carefully remove the aileron from one
of the wing panels. Note the position of the
hinges.

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8)After both ailerons aresecurely 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.
Work the aileron up and down several
times to “work in” the hinges and check
for proper movement.
Note:
4)Deflect the aileron and completely
saturate each hinge with thin C/A glue. The
aileronsfrontsurfaceshouldlightlycontactthe
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
penetrateanddistributethroughoutthe
hinge, securely bonding it to the wood
structureofthe wing panel andaileron.
5)Turn the wing panelover anddeflectthe
aileron in the opposite direction from the
opposite side. Apply thin C/A glue to each
hinge,making surethattheC/Apenetrates into
both the aileron and wing panel.
6) Using C/A remover/debonder and a
papertowel,remove any excess C/A gluethat
may have accumulated on the wing or in the
aileronhinge area.
Hinge.

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HINGING THE ELEVATOR.
HINGING THE RUDDER.
Glue the elevator hinges in place using the
same techniques used to hinge the ailerons.
Glue the rudder hinges in place using the
same techniques used to hinge the ailerons.
INSTALL AILERON CONTROL HORN.
M3LOCK
NUT.
ALUMINUMWASHER.
ALUMINUMWASHER.
CONTROLHORN
M3 SCREW.
18mm.
Epoxy.
Epoxy.
2 sets.
3x35mm. Wing
bottom.
Aileroncontrol horn.
Hinge.
1) Locate the hardware necessary to install
the control horns for the ailerons.
2) Position the control horn on the bottom of
the aileron. You will see pre-drill hole 3mm for
the horn mounting screw on the aileron.
3) Place epoxy into hole. This will harden the
threads and prevent the crews from pulling
loose.
4) Thread a control horn end with aluminum
washer, lock nut until the top edge of the end is
18mm from the vase of the horn as shown.
Install the elevator control horn using the
same method as same as the aileron control
horns.
INSTALL ELEVATOR CONTROL HORN.
3mm.

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2 sets.
3x40mm. 2 sets.
3x45mm.
16mm.
Epoxy.
INSTALL RUDDER CONTROL HORN.
Horizontal
Stabilizer.
Elevator control horn.
AluminumWasher.
CONTROL HORN M3
M3LOCKNUT.
Epoxy.
AluminumWasher.
Horizontal
Stabilizer. Elevator.
M3LOCK
NUT.
ALUMINUMWASHER.
ALUMINUMWASHER.
CONTROLHORN
M3 SCREW.
18mm.
Epoxy.
Epoxy.
3mm.
Repeatsteps to installthe rudder controlhorn
as same as steps done for ailerons.
3mm.

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Ruddercontrolhorn.
Hinge.
1) Locate the items necessary to install the
engine mount included with your model. .
ENGINE MOUNT INSTALLATION.
4x30mm.
2) Usefour4x30mmheadboltsandfour4mm
washers to attach the engine mount rails to
thefirewall.Tighten thescrews . Makesure to
use threadlock on the screws to help prevent
them from vibrating loose.
3) Carefully bend the second nylon tube
up at a 45º angle. This tube is the vent tube.
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 STOPPERASSEMBLY.
Thread locker glue.
2) Usinga modeling knife, cutonelength
ofsiliconfuelline. Connect one end oftheline
tothe weighted fuel pickup and the other end
to the nylon pick up tube.(The silicon tube is
not included).
Vent tube. Fuel pick up tube.
Fuel fill tube.

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5) With the stopper assembly in place,
the weighted pick-up should rest away from
therear ofthe tank and move freelyinside 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.
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.
FUEL TANK INSTALLATION.
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.
Fueltank.
Fuel pick-up tube. Fuelfill tube.
Vent tube.
Blow through one of the lines to ensure
thefuel lines have not become kinked in-
side the fuel tank compartment. Air should
flowthrough easily.
C/Aglue.
Balsa wood included.
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.
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.
Carefully use a lighter or heat gun to
permenently set the angle of the vent tube.
 8) Use balsa stick to help prevent moveable
from transferring to the fuel tank.
 9) Connect the lines from the tank to the
engine and muffler. The vent line will connect
to the muffler and the line from the clunk to the
carburetor.
 7) Slide the fuel tank into the fuselage.
Guide the lines from the tank through the hole
in the firewall.
Pushrodwire.

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1) Locate the items neccessary to install
the wheel and wheel pants as shown.
WHEEL AND WHEEL PANTS
INSTALLATION.
2) Follow diagram below for wheel pant
installation:
Use a drill and 4.2mm drill bit to drill a hole in
the wheel pants.
4.2mm.
8mm.
3) You have to trim each axle using a tool
cutting and cut-off wheel.
Caution when cutting the axles and
wear protective goggles.
wheel collar.
wheel.
Axle.
Washer. M3.
wheel Pant.
wheel.
M3.
M3.
wheel collar.
nut. Axle.
Washer.
M3.
46mm
Drill a hole.
4) Slidethecollartothe axle and setscrew
the collars to secure the collar to the axle and
thensliderthe wheel on theaxlewitha drop of
oilon theaxlesothe wheelwillspinfreelywhen
installed. Prepare a second collar and tighten
the setscrew using hex wrench to secure the
collar to the axle.
5) Place the wheel assembly in the wheel
pants. The threaded portion of the axle will fit
the notch of the wheel pant as shown.
6) Slide the threaded end of the axle
through the hole in the bottom of the landing
gear leg. Use a washer and locknut to tighten
the axle to the landing gear. Make sure to use
threadlock on the nut so it won’t vibrate loose
in flight as shown.

TURBO RAVEN. Instruction Manual
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INSTALLING THE MAIN LANDING GEAR
TO FUSELAGE.
Lockerglue.
Lockerglue.
M4 x 20mm.
 8) The blind nuts for securing the landing
geararealready mounted inside thefuselage.
 9) Using the hardware provided, mount
the main landing gear to the fuselage.
INSTALLING THE FUSELAGE SERVO.
1) Installthe rubber grommetsandbrass
colletsonto the throttle servo. Testfittheservo
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
mayneedtoadjust the size of the precut open-
ing in the mount. The notch in the sides of the
mount allow the servo lead to pass through.
C/Aglue.
LandingGear. wheel Pant.
 7) Tighten the setcrews using a hex
wrench to secure the collars on the axle over
the flat spot to retain the wheel as shown.
Repeat steps as above to attach remain-
ing wheel pants to the landing gear.
 10) Place the fuselage inverted on the
workbenchina suitable stand. Setthelanding
gear in place and use a screwdrive to secure
the landing gear to the fuselage using bolts
M4x20mmandwashers.Makesuretousethe
threadlock on the bolts so they don’t vibrate
loose.

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Rudderservo.
Elevatorservo.
THROTTLE SERVO ARM INSTALLATION.
Installadjustableservoconnectorinthe servo
arm as same as picture below:
AdjustableServo
connector.
Servoarm.
Loctite secure.
1PCS.
Elevatorservoarm.
Rudderservoarm.
Throttleservoarm.
MOUNTING THE ENGINE.
Switch.
Installtheswitch into the precut holeinthe
side of fuselage.
INSTALLING THE SWITCH.
115mm.
2) Use a pin drill and 2mm drill bit to drill a
small indentation in the mount for the engine
mounting screw.
 1) Positiontheengine withthedrivewasher
(115mm) forward of the firewall as shown.
3) Use a drill to drill the four holes in the engine
mount rails.

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MachineScrewM3x25mm.
Pushrodwire.
2mm diameter.
4) On the fire wall has the location for the
throttle pusshrod tube (pre-drill).
7) Slide the throttle pushrod wire into the tube.
Position the engine between the mounts. Use
four 3x25mm machine screws to secure the
engine to the mount as shown.
5) Slide the pushrod tube in the firewall and
guide it through the fuel tank mount. Use
medium C/A to glue the tube to the firewall and
the fuel tank mount.
6) Connect the Z-bend in the 450mm throttle
pushrod to the outer hole of the carburetor arm.
8) Reinstall the servo horn by sliding the
connector over the pushrod wire. Center the
throttle stick and trim and install the servo horn
perpendicular to the servo center line.
9) Move the throttle stick to the closed position
and move the carburetor to closed. Use a 2.5mm
hex wrench to tighten the screw that secures
the throttle pushrod wire. Make sure to use
threadlock on the screw so it does not vibrate
loose.

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COWLING INSTALLATION.
Trim and cut.
Trim and cut.
MachineScrew M3x10mm
 3) Install the muffler andmuffler extension
onto the engine and make the cutout 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 3x10mm screws to tighten the
screws.
2) While keeping the back edge of the
cowl flush with the marks, align the front of
thecowlwith the crankshaft of theengine. The
front of the cowl should be positioned so the
crankshaft is in nearly the middle of the cowl
opening.Use thespinnerbackplateasaguide.
Hold the cowl firmly in place using pieces of
masking tape.
Becauseofthe size of thecowl,itmay be nec-
essaryto use a needlevalve extension for the
highspeedneedlevalve. Make this out of suf-
ficient length 1.5mm wire and install it into the
end of the needle valve. Secure the wire in
placeby tightening the setscrewin the sideof
the needle valve.
1) Slide the fiberglass cowl over the
engine and line up the back edge of the cowl
withthemarks you made onthefuselagethen
trim and cut as shown.

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Epoxy.
Balsa stick.
Epoxy.
- Model size: .35-.45 size models
- Motor: 35mm 830 rev per volt
- Propeller: 10x7
- ESC: 50A
- Lipo Batteries: 4 cell 3200mA
ELECTRIC POWER CONVERSION.
1) Locate the items neccessary to install the
electric power conversion included with your
model.
2) Attach the electric motor box to the firewall
suitable with the cross lines drawn on the electric
motor box and firewall. Using epoxy and balsa
stick to secure the motor box to the firewall.
Please see pictures below.
3) Attach the motor to the front of the electric
motor box using four 4mm blind nut, four
M4x15mm hex head bolts to secure the motor.
Please see picture shown.
5.2mm.

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115mm.
Electricmotor.
5.2mm.
Epoxy.
Epoxy.
4) Locate the plywood battery tray to the
fuselage. Tighten the screws using machine
screws M3x15mm to secure the tray in position.
5) Attach the speed control to the side of the
motor box using two-sided tape and tie wraps.
Connect the appropriate leads from the speed
control to the motor. Make sure the leads will
not interfere with the operation of the motor.
Blindnut.
Battery.
M4x15mm.
M3x15mm.
Speed control.

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SPINNER INSTALLATION.
Install the spinner backplate, propeller and
spinner cone.
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.
String.
Small weight.
1) Usinga small weight (Weightedfuel pick-up
workswell) andstring, feedthestring through
the wing as indicated.
2) Place the servo between the mounting
blocksand spaceitfromthe hatch.Useapencil
to mark the mounting hole locations on the
blocks.
3) Use drill bit in a pin vise to drill the mouting
holes in the blocks.
Servos. Smallweight.
Thread.
INSTALLING THEAILERON.
Because the size of servos differ, you
mayneed toadjustthesizeof theprecutopen-
ing in the mount. The notch in the sides of
themountallowthe servoleadtopassthrough.
4) Apply 2-3 drops of thin C/A to each of the
mounting holes. Allow the C/A to cure without
using accelerator.
5) Use dental floss to secure the connection
so they cannot become unplugged.

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6) Secure the servo to the aileron hatch using
Phillips screwdriver and the screws provided
with the servo.
7) Apply 1-2 drops of thin C/A to each of the
mounting tabs. Allow the C/A to cure without
using accelerator.
8) A string has been provided in the wing to
pull the aileron lead through to the wing root.
Remove the string from the wing at the servo
location and use the tape to attach it to the
servoextensionlead.Pull the lead throughthe
wing and remove the string.

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Wing.
M2lock nut.
Aileron.
9) Set the aileron hatch in place and use a
Phillips screw driver to install it with four wood
screws.
1) Mark the control wire where it crosses the
servo arm hole.
Bend at the mark.
AILERONPUSHRODHORNINSTALLATION
Mark.
Pen.
Snapkeeper.
Servoarm.
3) Connect the linkage as shown and secure
the control wire with a snap keeper.
8mm Snapkeeper.
2)Makea 90-degree bendatthemark and cut
offtheexcesswireleaving8mmpastthebend.
M2 lock nut. Metalclevis.
8mm.
cut.

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INSTALLING THE HORIZONTAL
STABILIZER.
Draw center line.
Repeat the procedure for the other aileron servo.
Remove covering.
1) Using a ruler and a pen, locate the
centerlineofthehorizontalstabilizer,atthetrail-
ing edge, and place a mark. Use a triangle
and extend this mark, from back to front,
across the top of the stabilizer. Also extend
thismark down thebackof the trailingedge of
the stabilizer.
5) When you are satisfied with the align-
ment, hold the stabilizer in place with T- pins
or masking tape, but do not glue at this time.
4) Install the stabilizer onto the fuselage.
Align the centerline drawn on the top and the
rear of the stabilizer with the centre of the fu-
selage. When that is aligned, hold the stabi-
lizer in that position using T-pins or masking
tape. Align the horizontal stabilizer with the
wing. When viewed from the rear, the hori-
zontal stabilizer should be level with the wing.
Ifitis not level, use sandpaperandsanddown
the high side of the stabilizer mounting plat-
form until the proper alignment is achieved.
The tips of the stabilizer should also be equal
distance from the tips of the wing.
3) Put the stabilizer into place in the po-
sition of the fuselage.
2) Using a modeling knife, carefully re-
movethecoveringatmountingslot of horizon-
tal stabilizer ( both side of fuselage).

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When cutting through the covering to re-
move it, cut with only enough pressure to
only cut through the covering itself. Cutting
into the balsa structure may weaken it.
INSTALLING THEVERTICALSTABILIZER.
Remove covering.
Pen.
Hingeslot.
6) With the stabilizer held firmly in place,
use a pen and draw lines onto the stabilizer
where it and the fuselage sides meet. Do this
on both the right and left sides and top and
bottom of the stabilizer.
7) Removethe stabilizer. Using thelines
youjust drew as aguide, carefully removethe
covering from between them using a model-
ingknife.
8) Using a modeling knife, carefully re-
move the covering that overlaps the stabilizer
mounting platform sides in the fuselage. Re-
move the covering from both the top and the
bottom of the platform sides.
9) When you are sure that everything is
aligned correctly, mix up a generous amount
of 30 Minute Epoxy. Apply a thin layer to the
10) After the epoxy has fully cured, re-
move the masking tape orT-pins used to hold
the stabilizer in place. Carefully inspect the
glue joints. Use more epoxy to fill in any gaps
that may exist that were not filled previously
and clean up the excess using a paper towel
and rubbing alcohol.
bottom of the stabilizer mounting area and to
the stabilizer mounting platform sides in the
fuselage. Putting the stabilizer in place and
realign. Double check all of your measure-
ments once more before the epoxy cures.
HoldthestabilizerinplacewithT-pinsormask-
ing tape and remove any excess epoxy using
a paper towel and rubbing alcohol.
Epoxy.