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WWW.SEAGULLMODELS.COM
ASSEMBLY MANUAL
MS: 254
“ Graphics and specications may change without notice “ . MS: 254
ALMOST READY TO FLY
www.seagullmodels.com
Specications:
Wingspan---------------70.9 in (180 cm).
Wing area---------------793.9 sq.in (51.2 sq.dm).
Weight-------------------8.2 lbs (3.7 kg).
Length-------------------50.4 in (128 cm).
Engine-------------------10cc - 15cc.
Radio--------------------5 channels with 9 servos.
Electric conversion: Optional.
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FUNKY CUB 10cc-15cc
INTRODUCTION.
Instruction Manual.
ank you for choosing the FUNKY CUB 10cc-15cc ARF by SEAGULL MODELS
COMPANY LTD,. e FUNKY CUB 10cc-15cc 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 FUNKY CUB 10cc-15cc 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 FUNKY CUB 10cc-15cc. User the parts
listing below to indentify all parts.
WARNING.
Please be awere that this aeroplane is not a toy and if assembley 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 inexperianced with basic R/C ight we strongly recommend you contact your R/C
supplier and join your local R/C model Flying Club. R/C Model Flying Clubs oer a variety
of training procedures designed to help the new pilot on his way to successful R/C ight.
ey will also be able to advise on any insurance and safety regulations that may apply.
KIT CONTENTS
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KIT CONTENTS.
SEA254 FUNKY CUB 10CC-15CC
SEA25401 Fuselage
SEA25402 Wing set
SEA25403 Tail set
SEA25404 Canopy
SEA25405 Pilot
SEA25406 Cowling
SEA25407 Landing gear
ADDITIONAL ITEMS REQUIRED.
HINGING THE FLAP.
M2x10mm
10cc-15cc gasoline engine.
Computer radio with 9 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.
M2x10mm
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FUNKY CUB 10cc-15cc
HINGING THE AILERON.
Note : e control surfaces, including the ai-
lerons, 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.
Instruction Manual.
Hinge.
3) Slide the wing panel on the aileron 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.
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.
NOTE : 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.
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 wing
panel until the T-pin is snug against the wing
panel. is will help ensure an equal amount
of hinge is on either side of the hinge line
when the aileron is mounted to the aileron.
Ep ox y.
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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.
HINGING THE RUDDER.
Glue the rudder hinges in place using
the same techniques used to hinge the ailerons.
INSTALL THE AILERONS CONTROL
HORN.
Note :
Work the aileron up and down several times to “work in” the hinges
and check for proper movement.
HINGING THE ELEVATOR.
Glue the elevator hinges in place using
the same techniques used to hinge the ailerons.
Fiberglass control horn
Ep ox y.
Ep ox y.
Aileron control horn.
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FUNKY CUB 10cc-15cc
INSTALL FLAP CONTROL HORN.
Install the ap control horn using the
same method as same as the aileron control horns.
.
Fiberglass control horn.
Instruction Manual.
Ep ox y.
Elevator berglass control horn.
Ep ox y.
INSTALL ELEVATOR CONTROL HORN.
Ep ox y.
INSTALL RUDDER CONTROL HORN.
Repeat steps to install the rudder control
horn as same as steps done for ailerons.
Fiberglass control horn
.
Fiberglass control horn.
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Ep ox y.
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Rudder berglass control horn.
ENGINE MOUNT INSTALLATION.
1) Locate the items necessary to install
the engine mount included with your
model.
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.
.
4x30mm
2) Use four 4x30mm 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.
read locker glue.
INSTALLING THE STOPPER
ASSEMBLY.
Vent tube.
Fuel fill tube.
Fuel pick up tube.
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FUNKY CUB 10cc-15cc
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.
Instruction Manual.
Vent tube.
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.
Fuel ll tube.
Fuel pick up tube.
8) Connect the lines from the tank to the engine and muer. e vent line will connect
to the muer and the line from the clunk to
the carburetor.
Blow through one of the lines to ensure
the fuel lines have not become kinked inside
the fuel tank compartment. Air should ow
through easily.
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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.
Elevator servo.
INSTALLING THE SWITCH RECEIVER.
.
Install the switch into the precut hole in
the side, in the fuselage.
3/32” Hole.
Rudder servo.
rottle servo.
Elevator servo.
THROTTLE SERVO ARM
INSTALLATION.
Install adjustable servo connector in the
servo arm as same as picture below:
Loctite secure.
Adjustable servo
connector.
Servo arm.
Trim and cut.
.
Switch.
INSTALLING THE SWITCH ENGINE.
rottle servo arm.
Trim and cut.
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FUNKY CUB 10cc-15cc
Instruction Manual.
Switch.
INSTALLING THE MAIN LANDING
GEAR TO FUSELAGE.
read a mounting screw into each of
the holes to cut threads in the surrounding
wood. Apply a small amount of thin CA to
harden the threads make by the screws. Position the landing gear so it rakes forward. Use
the screws and landing gear straps to secure
the landing gear to the bottom of the fuselage.
Col lar.
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MOUNTING THE ENGINE.
1) Position the engine with the drive
washer (145mm) forward of the rewall
as shown.
4mm
145mm
2) Use a pin drill and 4mm drill bit to
drill a small indentation in the mount for
the engine mounting screw.
Machine screw M4x30mm
4) On the re wall has the location for the
throttle pushrod 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 450mm
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.
4mm
3) Use a drill to drill the four holes in the
engine mount rails.
Pushrod wire.
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FUNKY CUB 10cc-15cc
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.
Instruction Manual.
Cut.
Cut.
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.
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.
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. Hold the cowl rmly in place using
pieces of masking tape.
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Needle valve.
WWW.SEAGULLMODELS.COM
ELECTRIC POWER CONVERSION.
1) Locate the items neccessary to install
the electric power conversion included
with your model.
2) Recommend the items necessary to install the electric power conversion parts
included with your model.
3x10mm
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.
Needle valve.
- Model size: .75-.90 size models
- Motor: 50mm 310 rev per volt
- Propeller: 14x10 ~ 15x10
- ESC: 60A
- Lipo Batteries: 8 cell 3200mA
3) 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.
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FUNKY CUB 10cc-15cc
Instruction Manual.
M4x20mm
4) 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.
.
Blind nut.
Epoxy
M3x12mm
4 mm
145 mm
Balsa stick.
4 mm
Epoxy
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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.
Tie wraps.
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 SERVOS.
Batt er y.
Speed control
INSTALLING THE SPINNER.
Install the spinner backplate, propeller
and spinner cone.
Servos
weight
Small
.
.
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.
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FUNKY CUB 10cc-15cc
Instruction Manual.
1) Using a small weight (Weighted fuel
pick-up works well) and string, feed the
string through the wing as indicated.
Small weight. String.
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.
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.
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.
C/A glue
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.
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.
C/A glue
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9) Set the aileron hatch in place and use a
Phillips screw driver to install it with four
wood screws.
M2x10mm
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.
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FUNKY CUB 10cc-15cc
Instruction Manual.
Flap.
Bend at the mark
8mm
M2 lock nut.
Snap keeper.
Mark.
Metal clevis.
Hex nut.
M2 clevis.
Fuel tubing.
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.
Servo arm.
Snap keeper.
Nylon Snap keeper.
Hex Nut.
Fuel tubing.
INSTALLING THE FLAP PUSHROD.
Draw center line
2) Using a modeling knife, carefully remove the covering at mounting slot of
horizontal stabilizer ( both side of fuselage).
.
Cut.
Repeat the procedure for the aileron
pushrod.
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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.
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.
Pen
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
Epoxy
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.
5) Remove the stabilizer. Using the lines
you just drew as a guide, carefully remove
the covering from between them using a
modeling knife.
Trim and cut
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.
Epoxy
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FUNKY CUB 10cc-15cc
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. is slot accepts the lower rudder
hinge.
.
Instruction Manual.
Hinge slot.
3) While holding the vertical stabilizer
rmly in place, use a pen and draw a
line on eachside of the vertical stabilizer
where it meets the top of the fuselage.
Remove covering.
Fill Epoxy
2) Slide the vertical stabilizer into the slot in
the top of the fuselage. e rear edge of the
stabilizer should be ush with the rear edge
of the fuselage and the lower rudder hinge
should engage the precut hinge slot in the
lower fuselage. e bottom edge of the stabilizer should also be rmly pushed against the
top of the horizontal stabilizer.
Ep ox y.
4) Slide the vertical stabilizer back inplace. Using a triangle, check to ensure
that the vertical stabilizer is aligned 90º
to the horizontal stabilizer.
Vertical
Horizontal
Stabilizer.
90º
Stabilizer.
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5) 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.
Elevator control horn.
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 assembly as pictures below.
C/A glue.
Hinge.
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.
Elevator pushrod.
M2 clevis.
Fuel tubing.
Hex nut.
Pen.
Elevator control horn.
M2 clevis.M2 lock nut.
.
8mm
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FUNKY CUB 10cc-15cc
8mm
Nylon Snap Keeper.
Instruction Manual.
M2 clevis.M2 lock nut.
8mm
Pen.
RUDDER PUSHROD HORN
INSTALLATION.
Repeat steps as same as steps done for
elevator.
8mm
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MOUNTING THE TAIL WHEEL.
Locate items necessary to install tail wheel.
3x25 mm.
3 x 20mm.
Aluminum tail
landing gear.
INSTALLATION CANOPY.
Wing tube.
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FUNKY CUB 10cc-15cc
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.
Instruction Manual.
Set of ignition.
Set of ignition.
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
ngerprints and dust. Position decal on
the model where desired, using the photos on the box and aid in their location.
INSTALLING 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.
Receiver.Batt er y.
ATTACHMENT WING- FUSELAGE.
Attach the aluminium tube into fuselage.
Wing tube.
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Insert two wing panels as pictures below.
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Wing bolt.
INSTALLATION WING- FUSELAGE
STRUTS.
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FUNKY CUB 10cc-15cc
Instruction Manual.
3x10mm
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OPTIONAL FLOAT FOR FUNKY CUB
(SEA254F ).
1) Install Struts onto oats.
2) Install Water Rudder.
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FUNKY CUB 10cc-15cc
Instruction Manual.
Drill hole.
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3) Attach oat to fuselage.
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Drill hole.
Mark.
4) Install water rudder control bellcrank
to fuselage .
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FUNKY CUB 10cc-15cc
5) Install water rudder control cables.
Instruction Manual.
Bend at the mark
8mm
M2 lock nut.
Metal clevis.
Snap keeper.
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BALANCING.
4) Do not turn plane upside down. Only
low wing models should be turned upsidedown for balancing. Remove this
paragraph, it is not intended for use in
the instructions. it is a note for you.High
Wing models must be balanced upright.
Accurately mark the balance point on
the botttom of the wing on both sides of
the fuselage. e balance point is located
88mm 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 .
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 88MM 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 bottom side of the wing
88mm back from the leading edge of the
wing at the wing root.
3) With the model upright, place your
ngers on the masking tape and carefully
li the plane.
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.
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FUNKY CUB 10cc-15cc
Instruction Manual.
*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.
88mm
CONTROL THROWS.
Ailerons:
High Rate :
Up : 25 mm
Down : 25 mm
Low Rate :
Up : 15 mm
Down : 15 mm
Elevator:
High Rate :
Up : 25 mm
Down : 25 mm
Low Rate :
Up : 15 mm
Down : 15 mm
Rudder:
High Rate :
Right : 30 mm
Le : 30 mm
Low Rate :
Right : 20 mm
Le : 20 mm
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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 direc-
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.
1) Completely charge your transmitter and receiver batteries before
your rst day of ying.
2) Check every bolt and every glue
joint in the FUNKY CUB 10cc-15cc
to ensure that everything is tight and
well bonded.
3) Double check the balance of the
airplane. Do this with the fuel tank
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.
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 trans-
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.
We wish you many safe and enjoyable 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.
8) Properly balance the propeller.
An out of balance propeller will cause
excessive vibration which could lead
to engine and/or airframe failure.
with your FUNKY CUB 10CC-15CC.
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