Seagull | cassutt 3M Racer | Specifications | Seagull cassutt 3M Racer Specifications

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MS:X164
ASSEMBLY MANUAL
“Graphics and specifications may change without notice”.
Specifications:
Wing span -----------------------------35in (89cm).
Wing area ---------------303.8sq.in (19.6sq dm).
Weight ---------------------------- ---3.3lbs (1.5kg).
Length ---------------------------------38.2in (97cm).
Speed control(ESC)---------------------30A amp.
Motor -----------------------------------------------480.
Radio ----------- 4 channels with 4 mini servos.
Battery 2-3-cell 2200mAh to 2600mAh Li-Po.
10 x 5E Electric Prop.
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MINI CASSUTT 3M RACER
Instruction Manual.
INTRODUCTION.
Thank you for choosing the MINI CASSUTT 3M RACER ARTF by SEAGULL MODELS COMPANY
LTD. The MINI CASSUTT 3M RACER was designed with the intermediate/advanced sport flyer
in mind. It is a semi scale airplane which is easy to fly and quick to assemble. The airframe is
conventionally built using balsa, plywood to make it stronger than the average ARTF , yet the design
allows the aeroplane to be kept 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 MINI
CASSUTT 3M RACER 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 MINI CASSUTT 3M RACER . 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 supplier
and join your local R/C Model Flying Club. R/C Model Flying Clubs offer a variety of training
procedures designed to help the new pilot on his way to successful R/C flight. They will also be able
to advise on any insurance and safety regulations that may apply.
KIT CONTENTS
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KIT CONTENTS.
1.Fuselage
2.Wing Set
3.Tail Set
4.Canopy
5.Cowling
6.Wing Tube
7.Main landing gear
8.Fiberglass wheel pants
9.Wheels
10.Hardware Set
HINGING THE AILERONS .
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 imperative that you properly
adhere the hinges in place per the
steps that 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.
ADDITIONAL ITEMS REQUIRED.
Motor 450-480
Speed control(ESC) 30A-40A amp.
Battery 2-3 cell 2200mAh to
2600mAh Li-Po.
4 channel radio with 4 mini servos
Propeller to suit motor
TOOLS & SUPPLIES NEEDED.
Thick cyanoacrylate glue
30 minute epoxy
5 minute epoxy
Hand or electric drill
Assorted drill bits
Modelling knife
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
2) Remove each hinge from the wing panel
and aileron and place a T-pin in the center of
each hinge. Slide each hinge into the aileron
until the T-pin is snug against the aileron. This
will help ensure an equal amount of hinge is
on either side of the hinge line when the aileron
is mounted to the wing panel.
T-pin.
C/A Hinge.
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
should be maintained between the wing panel
and aileron.
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MINI CASSUTT 3M RACER
Instruction Manual.
C/A Hinge.
4) Deflect the aileron and completely
saturate each hinge with thin C/A glue. The
ailerons front surface should lightly contact the
wing during this procedure. Ideally, when
thehinges 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 penetrate and distribute
throughout the hinge, securely
bonding it to the wood structure of
the wing panel and aileron.
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, making sure that the C/A penetrates into
both the aileron and wing panel.
6) Using C/A remover/debonder and a
paper towel, remove any excess C/A glue that
may have accumulated on the wing or in the
aileron hinge area.
7) Repeat this process with the other wing
panel, securely hinging the aileron in place.
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.
HINGING THE ELEVATORS.
Glue the elevator hinges in place using the
same techniques used to hinge the ailerons.
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HINGING THE RUDDER.
Glue the rudder hinges in place using the
same techniques used to hinge the ailerons.
Aileron fiberglass
control horn .
INSTALL ELEVATOR CONTROL HORN.
Fiberglass
control horn.
C/A Hinge.
Epoxy.
INSTALL THE AILERONS CONTROL
HORN.
Fiberglass
control horn.
Elevator fiberglass
control horn.
INSTALL RUDDER CONTROL HORN.
Epoxy.
Fiberglass
control horn.
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MINI CASSUTT 3M RACER
Instruction Manual.
Elevator servo arm.
Epoxy.
Rudder servo arm.
WHEEL AND WHEEL PANTS.
1) Assembling and mounting the wheel
pants as shown below pictures.
Rudder fiberglass
control horn.
INSTALLING THE FUSELAGE SERVOS.
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.
1) Install the rubber grommets and brass
collets onto the rudder servo. Test fit the servo
into the aileron servo mount.
2) Secure the servos with the screws provided with your radio system.
2) Follow diagram below for wheel pant
installation:
wheel.
Elevator servo.
wheel collar.
Washer.
nut.
Axle.
M3.
wheel Pant.
Rudder servo.
FUSELAGE SERVO ARM INSTALLATION.
Install adjustable servo connector in the servo
arm as same as picture below:
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Lite-Plywood
block.
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4) A drop of C/A glue on the wheel collar
screws will help keep them from coming lose
during operation.
Repeat the process for the other wheel
and wheel pant
3) You have to trim each axle using a toll
cutting and cut-off wheel.
INSTALLING THE MAIN LANDING GEAR
TO FUSELAGE.
Caution when cutting the axles and wear
protective goggles.
5) The blind nuts for securing the landing
gear are already mounted inside the fuselage.
6) Using the hardware provided, mount
the main landing gear to the fuselage.
7) Place the fuselage inverted on the workbench in a suitable stand. Set the landing gear
in place and use a screwdrive to secure the
landing gear to the fuselage using bolts
M3x10mm and washers. Make sure to use the
threadlock on the bolts so they don’t vibrate
loose.
Thread locker glue.
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MINI CASSUTT 3M RACER
Instruction Manual.
4) Apply 2-3 drops of thin C/A to each of the
mounting holes. Allow the C/A to cure without
using accelerator.
INSTALLING THE AILERON.
Servos.
Small weight.
Thread.
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.
5) Use dental floss to secure the connection
so they cannot become unplugged.
1) Using a small weight (Weighted fuel pick-up
works well) and string, feed the string through
the wing as indicated.
2) Place the servo between the mounting
blocks and space it from the hatch. Use a pencil
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.
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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.
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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
servo extension lead. Pull the lead through the
wing and remove the string.
2x6mm.
9) Set the aileron hatch in place and use a
Phillips screw driver to install it with four wood
screws.
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MINI CASSUTT 3M RACER
Instruction Manual.
ELECTRIC POWER ASSEMBLY.
4mm.
1) Locate the items neccessary to install the
electric power installation.
30A.
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.
4mm.
Balsa.
Blind nut.
3) Attach the motor to the front of the electric
motor box using four 3mm blind nut, four
M3x15mm hex head bolts to secure the motor.
Please see picture shown.
Electric motor.
M3 x 12mm.
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Epoxy.
122mm.
4) 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.
2) While keeping the back edge of the
cowl flush with the marks, align the front of
the cowl with the crankshaft of the engine. The
front of the cowl should be positioned so the
crankshaft is in nearly the middle of the cowl
opening. Use the spinner backplate as a guide.
Hold the cowl firmly in place using pieces of
masking tape.
3) Use four M2x8mm machine screws to
secure the fiberglass cowling to thefuselage
as shown.
Machine Screw M2x8mm.
Battery.
Speed control.
2200mAh-2600mAh.
COWLING.
1) Slide the fiberglass cowl over the motor
and line up the back edge of the cowl with the
marks you made on the fuselage then trim and
cut as shown.
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MINI CASSUTT 3M RACER
INSTALLING THE SPINNER.
Install the spinner backplate, propeller and
spinner cone.
Instruction Manual.
2) Using a modeling knife, carefully remove
the covering at mounting slot of horizontal stabilizer ( both side of fuselage).
Remove covering.
3) Put the stabilizer into place in the position of the fuselage.
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.
INSTALLING THE HORIZONTAL STABILIZER.
1) Using a ruler and a pen, locate the
centerline of the horizontal stabilizer, at the trailing edge, and place a mark. Use a triangle
and extend this mark, from back to front,
across the top of the stabilizer. Also extend
this mark down the back of the trailing edge of
the stabilizer.
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 fuselage. When that is aligned, hold the stabilizer in that position using T-pins or masking
tape. Align the horizontal stabilizer with the
wing. When viewed from the rear, the horizontal stabilizer should be level with the wing.
If it is not level, use sandpaper and sand down
the high side of the stabilizer mounting platform until the proper alignment is achieved.
The tips of the stabilizer should also be equal
distance from the tips of the wing.
5) When you are satisfied with the alignment, hold the stabilizer in place with T- pins
or masking tape, but do not glue at this time.
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.
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Pen.
7) Remove the stabilizer. Using the lines
you just drew as a guide, carefully remove the
covering from between them using a modeling knife.
INSTALLING VERITICAL FIN.
Remove covering.
When cutting through the covering to remove it, cut with only enough pressure
to only cut through the covering itself. Cutting
into the balsa structure may weaken it.
8) Using a modeling knife, carefully remove the covering that overlaps the stabilizer
mounting platform sides in the fuselage. Remove 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
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 measurements once more before the epoxy cures.
Hold the stabilizer in place with T-pins or masking tape and remove any excess epoxy using
a paper towel and rubbing alcohol.
Epoxy.
1) Using a modeling knife, remove the
covering from over the precut hinge slot cut
into the lower rear portion of the fuselage.
Hinge slot.
2) Slide the vertical stabilizer into the slot
in the top of the fuselage. The rear edge of
the stabilizer should be flush with the rear edge
of the fuselage and the lower rudder hinge
should engage the precut hinge slot in the
lower fuselage. The bottom edge of the stabilizer should also be firmly pushed against the
top of the horizontal stabilizer.
3) While holding the vertical stabilizer
firmly in place, use a pen and draw a line on
each side of the vertical stabilizer where it
meets the top of the fuselage.
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MINI CASSUTT 3M RACER
4) Remove the stabilizer. Using a modeling knife, remove the covering from below
the lines you drew.
Epoxy.
Instruction Manual.
6) When you are sure that everything is
aligned correctly, mix up a generous amount of
Flash 30 Minute Epoxy. Apply a thin layer to the
mounting slot in the top of the fuselage and to
the sides and bottom of the vertical stabilizer
mounting area. Apply epoxy to the bottom and
top edges of the filler block and to the lower
hinge also. Set the stabilizer in place and realign. Double check all of your measurements
once more before the epoxy cures. Hold the
stabilizer in place with T-pins or masking tape
and remove any excess epoxy using a paper
towel and rubbing alcohol. Allow the epoxy to
fully cure before proceeding.
When cutting through the covering to remove it, cut with only enough pressure to
only cut through the covering itself. Cutting
into the balsa structure may weaken it.
5) Slide the vertical stabilizer back in
place. Using a triangle, check to ensure that
the vertical stabilizer is aligned 90º to the horizontal stabilizer.
Horizontal
Stabilizer.
90º
C/A glue.
Hinge.
Vertical
Stabilizer.
ELEVATOR - RUDDER PUSHROD HORN
INSTALLATION.
1) Install the elevator control horn using
the same method as with the aileron control
horns.
2) Position the elevator control horn on
the both side of elevator.
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Elevator control horn.
Rudder control horn.
Elevator pushrod.
480mm.
AILERON PUSHROD HORN INSTALLATION
50mm.
Rudder pushrod.
480mm.
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MINI CASSUTT 3M RACER
Instruction Manual.
2) Position the pilot figure on the canopy floor
as show. Locate the oval shaped on the canopy
floor and remove the covering. Use epoxy to
glue this into the base of the pilot figure, please
see pictures as shown.
80mm
Repeat the procedure for other landing
gear.
C/A glue
INSTALLATION PILOT.
1) A scale pilot is included with this ARF. The
Seagull Pilot included fitting well to the cockpit.
(or you can order others scale pilot figures
made by Seagull factory. They are available at
Seagull distributors.)
If you are going to install a pilot figure, please
use a sanding bar to sand the base of the figure
so that it is flat.
3) Position the canopy onto the fuselage. Trace
around the canopy and onto the fuselage using
a felt-tipped pen.
- Apply a bead of canopy glue around the inside
edge of the canopy. Position the canopy onto
the hatch. Use tape to hold the canopy secure
until the glue fully cures.
C/A glue
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APPLY THE DECALS.
1) If all the decals are precut and ready to
stick. Please be certain the model is clean and
free from oily fingerprints and dust. Position
decal on the model where desired, using the
photos on the box and aid in their location.
2) If all the decals are not precut, please use
scissors or a sharp hobby knife to cut the
decals from the sheet. Please be certain the
model is clean and free from oily fingerprints
and dust. Position decal on the model where
desired, using the photos on the box and aid
in their location.
INSTALLING THE RECEIVER.
1) Plug the five servo leads and the switch
lead into the receiver. Plug the battery pack
lead into the switch also.
2) Wrap the receiver pack in the protective foam rubber to protect them from vibration.
3) Route the antenna in the antenna tube
inside the fuselage and secure it to the bottom of fuselage using a plastic tape.
Wing bolt.
Receiver.
BALANCING.
ATTACHMENT WING-FUSELAGE.
Attach the aluminium tube into fuselage.
BALANCING.
Wing tube.
Insert two wing panels as pictures below.
1) It is critical that your airplane be
balanced correctly. Improper balance will
cause your plane to lose control and crash.
THE CENTER OF GRAVITY IS LOCATED
65MM BACK FROM THE LEADING EDGE
OF THE WING AT THE WING ROOT.
2) Mount the wing to the fuselage. Using a
couple of pieces of masking tape, place them
on the top side of the wing 65mm back from
the leading edge of the wing at the wing root.
3) Turn the airplane upside down. Place
your fingers on the masking tape and carefully
lift the plane .
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MINI CASSUTT 3M RACER
Accurately mark the balance point on the top
of the wing on both sides of the fuselage. The
balance point is located 65mm back from the
leading edge of the wing at the wing root. This
is the balance point at which your model
should balance for your first flights. Later, you
may wish to experiment by shifting the balance
up to 10mm forward or back to change the
flying characteristics. Moving the balance
forward may improve the smoothness and
arrow- like tracking, but it may then require
more speed for take off and make it more
difficult to slow down for landing. Moving the
balance aft makes the model more agile with
a lighter and snappier ”feel”. In any case,please
start at the location we recommend .
With the wing attached to the fuselage, all parts
of the model installed ( ready to fly), and empty
fuel tanks, hold the model at the
marked balance point with the stabilizer level..
Lift the model. If the tail drops when you lift,
the model is “tail heavy” and you must add
weight* to the nose. If the nose drops, it is
“nose heavy” and you must add weight* to the
tail to balance.
*If possible, first attempt to balance the model
by changing the position of the receiver battery
and receiver. If you are unable to obtain good
balance by doing so, then it will be necessary
to add weight to the nose or tail to achieve the
proper balance point.
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Instruction Manual.
65mm.
CONTROL THROWS.
Ailerons:
High Rate :
Up :
15 mm
Down : 15 mm
Low Rate :
Up :
10 mm
Down : 10 mm
Elevator:
High Rate :
Up :
15 mm
Down : 15 mm
Low Rate :
Up :
10 mm
Down : 10 mm
Rudder:
High Rate :
Right : 25 mm
Left : 25 mm
Low Rate :
Right : 20 mm
Left : 20 mm
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FLIGHT PREPARATION.
PREFLIGHT CHECK.
Check the operation and direction of the
elevator, rudder, ailerons and throttle.
1) Completely charge your transmitter
and receiver batteries before your first day of
flying.
A) Plug in your radio system per the
manufacturer's instructions and turn everything on.
B) Check the elevator first. Pull back on
the elevator stick. The elevator halves should
move up. If it they do not, flip the servo reversing switch on your transmitter to change
the direction.
C) Check the rudder. Looking from behind the airplane, move the rudder stick to the
right. The rudder should move to the right. If it
does not, flip the servo reversing switch on
your transmitter to change the direction.
D) Check the throttle. Moving the throttle
stick forward should open the carburetor barrel. If it does not, flip the servo reversing switch
on your transmitter to change the direction.
E) From behind the airplane, look at the
aileron on the right wing half. Move the aileron
stick to the right. The right aileron should move
up and the other aileron should move down. If
it does not, flip the servo reversing switch on
your transmitter to change the direction.
2) Check every bolt and every glue joint
in the MINI CASSUTT 3M RACER to ensure that
everything is tight and well bonded.
3) Double check the balance of the airplane. Do this with the fuel tank empty.
4) Check the control surfaces. All should
move in the correct direction and not bind in
any way.
5) If your radio transmitter is equipped
with dual rate switches double check that they
are on the low rate setting for your first few
flights.
6) Check to ensure the control surfaces
are moving the proper amount for both low
and high rate settings.
7) Check the receiver antenna. It should
be fully extended and not coiled up inside the
fuselage.
8) Properly balance the propeller. An out
of balance propeller will cause excessive vibration which could lead to engine and/or airframe failure.
We wish you many safe and enjoyable
flights with your MINI CASSUTT 3M RACER.
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