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www.seagullmodels.com
Specications:
Wingspan---------------59.1 in (150 cm).
Wing area----------------632.4 sq.in (40.8 sq.dm).
Weight-------------------7.1 - 7.9 lbs (3.2 - 3.6 kg).
Length-------------------50.3 in (127.7cm).
Engine-------------------0.55cu.in--------2 stroke
----------------------------0.82cu.in--------4 stroke
----------------------------10cc gasoline.
Radio--------------------4 channel with 5 servos.
Electric power conversion.
ARF
ASSEMBLY MANUAL
“ Graphics and specications may change without notice “ .
MS: 208
SUPER DAVE MX2
Instruction Manual.
2
ank you for choosing the SUPER DAVE MX2 ARTF by SEAGULL MODELS COMPANY LTD,.
e SUPER DAVE was designed with the intermediate/advanced sport yer in mind. It is a semi
scale airplane which is easy to y and quick to assemble. e airframe is onventionally built using
balsa, plywood to make it stronger than the average ARTF, yet the design allows the aeroplane to
be kept light. You will nd that most of the work has been done for you already. e motor mount
has been tted and the hinges are pre-installed. Flying the SUPER DAVE MX2 is simply a joy.
is instruction manual is designed to help you build a great ying earoplane. Please read
this manual throughly before starting assembly of your SUPER DAVE MX2. User the parts
listing below to indentify all parts.
INTRODUCTION.
WARNING.
KIT CONTENTS
1
4
2
2
3
3
5
6
Please be awere that this aeroplane is not a toy and if assemble or used incorrectly it is
capable of causing injury to people or property. WHEN YOU FLY THIS AEROPLANE YOU
ASSUME ALL RISK & REPONSIBILITY.
If you are inexperienced with basic RC ight we strongly recommend you contact your RC
supplier and join your local RC model Flying Club. RC Model Flying Clubs oer a variety of
training procedures designed to help the new pilot on his way to successful RC ight. ey
will also be able to advise on any insurance and safety regulations that may apply.
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KIT CONTENTS.
ADDITIONAL ITEMS REQUIRED.
0.55 cu.in 2-stroke.
0.82 cu.in 4-stroke.
10cc gasoline engine.
Radio 4 channel with 5 servos.
Glow plug to suit engine.
Propeller to suit engine.
Protective foam rubber for radio
system.
TOOLS & SUPPLIES NEEDED.
ick 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.
read-lock.
Paper towels.
HINGING THE AILERONS
SEA20801 Fuselage
SEA20802 Wing set
SEA20803 Tail set
SEA20804 Cowling
SEA20805 Canopy
SEA20806 Pilot
e 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.
Note :
1) Carefully remove the aileron from one
of the wing panels. Note the position of the
hinges.
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.
is 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
Hinge.
3) Slide the aileron on the wing panel until
there is only a slight gap. e 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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Instruction Manual.
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4) Deect the aileron and completely
saturate each hinge with thin C/A glue. e
ailerons front surface should lightly contact the
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.
Hinge.
e 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.
Note :
Epoxy
5) Turn the wing panel over and deect 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) Aer both ailerons are securely hinged,
rmly 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.
Work the aileron up and down several times to “work in” the hinges
and check for proper movement.
Note :
HINGING THE ELEVATOR.
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.
INSTALL THE AILERONS CONTROL
HORN.
Locate the hardware necessary to install the
control horns for the ailerons.
Aileron Control Horn.
Epoxy
Epoxy
INSTALL ELEVATOR CONTROL HORN.
Install the elevator control horn using the
same method as same as the aileron control
horns.
Elevator Control Horn.
Epoxy
Elevator
Epoxy
INSTALL THE RUDDER CONTROL
HORN.
Repeat steps to install the rudder control
horn as same as steps done for ailerons.
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Instruction Manual.
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Rudder Control Horn.
Epoxy
Rudder Control Horn.
ENGINE MOUNT INSTALLATION.
1) Locate the items necessary to install the
engine mount included with your model.
2) Use four M4x30mm head bolts and four
4mm washers to attach the engine mount
rails to the rewall. Tighten the screws .
Make sure to use threadlock on the screws
to help prevent them from vibrating loose.
INSTALLING THE STOPPER
ASSEMBLY.
read locker glue
1) Using a modeling knife, carefully cut o
the rear portion of one of the 3 nylon tubes
leaving 1/2” protruding from the rear of the
stopper. is will be the fuel pick up tube.
2) Using a modeling knife, cut one length of
silicon fuel line. Connect one end of the line
to the weighted fuel pick up and the other
end to the nylon pick up tube.
M4x30mm
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Vent tube.
Fuel pick up tube.
Fuel fill tube.
3) Carefully bend the second nylon tube up
at a 45º angle. is tube is the vent tube.
4) Test t the stopper assembly into the tank.
It may be necessary to remove some of the
ashing around the tank opening using a
modeling knife. If ashing is present, make
sure none falls into the tank.
5) With the stopper assembly in place, the
weighted pick-up should rest away from the
rear of the tank and move freely inside the
tank. e 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 satised with the alignment of
the stopper assembly tighten the 3 x 20mm
machine screw until the rubber stopper expands 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 dicult to determine which is which.
7) Slide the fuel tank into the fuselage. Guide
the lines from the tank through the hole in
the rewall.
8) Use balsa plywood to help prevent moveable from transferring to the fuel tank as
shown.
Fuel tank
Fuel tank
Balsa
C/A glue
Fuel pick up.
Vent tube.
Fuel ll tube.
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Instruction Manual.
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INSTALLING THE MAIN LANDING
GEAR TO FUSELAGE.
1) e blind nuts for securing the landing
gear are already mounted inside the fuselage.
2) Using the hardware provided, mount the
main landing gear to the fuselage.
3) 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
M4x20mm and washers. Make sure to use
the threadlock on the bolts so they don’t vibrate loose.
M4x20mm
read locker glue.
M4x20mm
WHEEL AND WHEEL PANTS.
1) Locate the items neccessary to install.
2) Follow diagram below for wheel pant installation:
Use a drill and 8mm drill bit to drill a hole in
the wheel pants.
14mm.
8mm.
Drill a hole
3) You have to trim each axle using a tool
cutting and cut-o wheel.
4) Slide the collar to the axle and setscrew
the collars to secure the collar to the axle and
then slider the wheel on the axle with a drop
of oil on the axle so the wheel will spin freely
when 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. e threaded portion of the axle will
t the notch of the wheel pant as shown.
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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
ight as shown.
7) Tighten the setcrews using a hex wrench
to secure the collars on the axle over the at
spot to retain the wheel as shown.
Repeat steps as above to attach remaining
wheel pants to the landing gear.
INSTALLING THE FUSELAGE SERVOS.
Because the size of servos dier, you
may need to adjust the size of the precut opening
in the mount. e notch in the sides of the
mount allow the servo lead to pass through.
1) Install the rubber grommets and brass
collets onto the throttle servo. Test t the
servo into the aileron servo mount.
2) Secure the servos with the screws provided with your radio system.
Wheel collar.
Wheel.
M3
Axle.
Washer.
M3
Wheel.
Wheel collar.
Washer.
nut.--
Lite-Plywood
block.
Wheel Pant.
C/A glue.
M3.
Axle.
rottle
Rudder
Elevator
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Instruction Manual.
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THROTTLE SERVO ARM INSTALLA-
TION.
Install adjustable servo connector in the servo arm as same as picture below:
Loctite secure.
Adjustable Servo
connector.
Servo arm
1 PCS.
rottle
Rudder
Elevator
INSTALLING THE SWITCH.
Install the switch into the precut hole in the
side, in the fuselage.
3/32’’ Hole.
Trim and cut.
Switch.
Trim and cut.
Switch.
MOUNTING THE ENGINE .
1) Position the engine with the drive washer
(125mm) forward of the rewall as shown.
125 mm
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2) Use a pin drill and 4mm drill bit to drill a
small indentation in the mount for the engine mounting screw.
4 mm
3) Use a drill to drill the four holes in the engine mount rails.
4) On the re wall has the location for the
throttle pusshrod tube (pre-drill).
5) Slide the pushrod tube in the rewall and
guide it through the fuel tank mount. Use
medium C/A to glue the tube to the rewall
and the fuel tank mount.
6) Connect the Z-bend in the 600mm throttle pushrod to the outer hole of the carburetor arm.
7) Slide the throttle pushrod wire into
the tube. Position the engine between the
mounts. Use four M4x30mm machine
screws to secure the engine to the mount as
shown.
4.2mm
4.2mm
Pushrod wire.
M4x30mm
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.
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Instruction Manual.
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COWLING.
1) Slide the berglass cowl over the engine
and line up the back edge of the cowl with
the marks you made on the fuselage then
trim and cut as shown.
Cut.
Cut.
2) While keeping the back edge of the cowl
ush with the marks, align the front of the
cowl with the cranksha of the engine. e
front of the cowl should be positioned so the
cranksha is in nearly the middle of the cowl
opening. Use the spinner backplate as a
guide. Hold the cowl rmly in place using
pieces of masking tape.
Because of the size of the cowl, it may be necessary to use a needle valve extension for the
high speed needle valve. Make this out of sufcient length 1.5mm wire and install it into
the end of the needle valve. Secure the wire in
place by tightening the set screw in the side of
the needle valve.
Cut.
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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Needle valve.
3) Install the muer and muer extension
onto the engine and make the cutout in the
cowl for muer clearance. Connect the fuel
and pressure lines to the carburetor, muer
and fuel ller valve. Secure the cowl to fuselage using the M3x10mm screws.
3x10mm
ELECTRIC POWER CONVERSION
1) Locate the items neccessary to install the
electric power conversion included with
your model.
- Model size: .46 -.52 size models
- Propeller: 12x6 ~ 13x6
- ESC: 60A
- Lipo Batteries: 4 cell 4200mA
2) Attach the electric motor box to the rewall suitable with the cross lines drawn on
the electric motor box and rewall. Using
epoxy and balsa stick to secure the motor
box to the rewall. Please see pictures below.
4x20 mm
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Instruction Manual.
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3) Attach the motor to the front of the electric motor box using four 4mm blind nut,
four M3x15mm hex head bolts to secure the
motor. Please see picture shown.
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.
4mm
Nut M3
3x15 mm
Epoxy
Balsa
125mm
Epoxy
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INSTALLING THE SPINNER.
.
Install the spinner backplate, propeller and
spinner cone.
e 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 AILERON - FLAP
SERVOS.
Servos.
Small weight.
Thread.
Because the size of servos dier, you may
need to adjust the size of the precut opening in
the mount. e notch in the sides of the mount
allow the servo lead to pass through.
Speed Control.
Tie wraps.
Bat ter y.
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Instruction Manual.
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.
1) Using a small weight (Weighted fuel pickup 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.
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 oss to secure the connection
so they cannot become unplugged.
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.
C/A glue.
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2x10 mm
2x10 mm
AILERON PUSHROD HORN
INSTALLATION.
Please see below pictures.
Use a felt tip pen to mark the wire where
it crosses the hole. Use a pair of pliers to
put a shrp 90-degree bend in the wire at
the mark.
Mark.
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Instruction Manual.
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2) Using a modeling knife, carefully remove
the covering at mounting slot of horizontal
stabilizer ( both side of fuselage).
4) With the stabilizer held rmly 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 le sides and top and
bottom of the stabilizer.
Cut.
3) Slide the stabilizer into place in the precut
slot in the rear of the fuselage. e stabilizer
should be pushed rmly against the front of
the slot.
Pen.
Bend at the mark
8mm
M2 lock nut.
Metal clevis.
Snap keeper.
Snap keeper.
Servo arm.
Fuel tubing.
Hex Nut.
Nylon Snap keeper.
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.
Draw center line.
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5) Remove the stabilizer. Using the lines you
just drew as a guide, carefully remove the
covering from between them using a modeling knife.
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.
6) 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.
7) When you are sure that everything is
aligned correctly, mix up a generous amount
of 30 Minute Epoxy. Apply a thin layer to the
top and bottom of the stabilizer mounting
area and to the stabilizer mounting platform
sides in the fuselage. Slide 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.
Remove covering.
Ep oxy.
Ep oxy.
INSTALLING VERTICAL STABILIZER.
1) Using a modeling knife, remove the covering from over the precut hinge slot cut into
the lower rear portion of the fuselage.
2) While holding the vertical stabilizer rmly in place, use a pen and draw a line on each
side of the vertical stabilizer where it meets
the top of the fuselage.
Ep oxy.
Fill epoxy.
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Instruction Manual.
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90º
Vertical
Stabilizer.
Horizontal
Stabilizer.
.
3) Slide the vertical stabilizer back in place.
Using a triangle, check to ensure that the vertical stabilizer is aligned 90º to the horizontal
stabilizer.
4) 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 and to bottom of
the vertical stabilizer mounting area. Apply epoxy to the bottom and top edges of
the ller 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.
Ep oxy.
Hinge
C/A glue
ELEVATOR 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.
3) read one clevis and M2 lock nut on to
each elevator control rod. read the horns
on until they are ush with the ends of the
control rods.
4) Elevator and rudder pushrods assemble as
pictures below.
M2 Clevis
Fuel Tubing
Hex Nut
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RUDDER PUSHROD HORN
INSTALLATION.
M2 lock nut.
M2 lock nut.
M2 clevis.
M2 clevis.
8mm
8mm
8mm
8mm
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Instruction Manual.
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MOUNTING THE TAIL WHEEL.
Locate items necessary to install tail wheel.
3x25 mm.
Aluminum tail
landing gear.
3 x 20mm.
Wing tube.
M2 Clevis
Fuel Tubing
Hex Nut
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INSTALLATION PILOT AND CANOPY.
1) Locate items necessary to install pilot and
canopy.
2) A scale pilot is included with this ARF.
e Seagull Pilot included tting well
to the cockpit. (or you can order others
scale pilot gures made by Seagull factory. ey are available at Seagull factory.
ey are available at Seagull distributors.)
If you are going to install a pilot gure, please
use a sanding bar to sand the base of the gure so that it is at.
4) Position the canopy onto the fuselage.
Trace around the canopy and onto the fuselage using a felt-tipped pen.
Epoxy
8mm
3) Position the pilot gure on the canopy
oor as show. Locate the oval shaped on the
canopy oor and remove the covering. Use
epoxy to glue this into the base of the pilot
gure and glue the cockpit panel in place
with C/A glue, please see pictures as shown.
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 ngerprints 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 c ertain the
model is clean and free from oily ngerprints
and dust. Position decal on the model where
desired, using the photos on the box and aid
in their location.
- 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.
.
INSTALLING THE BATTERY-
RECEIVER.
1) Plug the ve servo leads and the switch
lead into the receiver. Plug the battery pack
lead into the switch also.
2) Wrap the receiver and battery pack in the
protective foam rubber to protect them from
vibration.
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Instruction Manual.
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Receiver
ATTACHMENT WING-FUSELAGE.
Attach the aluminium tube into fuselage.
Insert two wing panels as pictures below.
Wing Tube.
Wing Bolt
4x20 mm
BALANCING.
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 110 MM 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 110 mm
back from the leading edge of the wing at
the wing root.
3) Turn the airplane upside down. Place
your ngers on the masking tape and
carefully li the plane .
Bat ter y.
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Accurately mark the balance point on the
top of the wing on both sides of the fuselage. e balance point is located 110 mm
back from the leading edge of the wing at
the wing root. is is the balance point
at which your model should balance for
your rst ights. Later, you may wish to
experiment by shiing the balance up
to 10mm forward or back to change the
ying characteristics. Moving the balance forward may improve the smoothness and arrow- like tracking, but it may
then require more speed for take o and
make it more dicult to slow down for
landing. Moving the balance a 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 y), and empty fuel tanks,
hold the model at the marked balance point with the stabilizer level.
Li the model. If the tail drops when you
li, 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, rst 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.
110mm
CONTROL THROWS.
Ailerons:
Up : 15 mm
Down : 15 mm
Elevator:
Up : 20 mm
Down : 20 mm
Rudder:
Right : 25 mm
Le : 25 mm
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Instruction Manual.
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FLIGHT PREPARATION. PREFLIGHT CHECK.
Check the operation and direction of the
elevator, rudder, ailerons and throttle.
A) Plug in your radio system per the
manufacturer’s instructions and turn everything on.
B) Check the elevator rst. Pull back
on the elevator stick. e elevator halves
should move up. If it they do not, ip 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. e rudder should move to the
right. If it does not, ip 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, ip 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. e right aileron should move up and the other aileron
should move down. If it does not, ip the
servo reversing switch on your transmitter
to change the direction.
1) Completely charge your transmitter and
receiver batteries before your rst day of ying.
2) Check every bolt and every glue joint in
the SUPER DAVE MX2 to ensure that every-
thing is tight and well bonded.
3) Double check the balance of the air-
plane. 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 rst
few ights.
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.
We wish you many safe and enjoyable ights
with your SUPER DAVE MX2.
8) Properly balance the propeller. An out of
balance propeller will cause excessive vibration which could lead to engine and/or airframe failure.
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