SMC Networks Corsair-F4U Instruction Manual

Instruction Manual

Wingspan : 1670mm

Length : 1350mm

Weight : 3400gr - 4000gr

Engine : 61/75 two stroke

Radio : 5 servo + 1 servo retract / 6 channel

g

MAIN GEAR ASSEMBLY

(2) Main gear (90 degree)

(2) One set landing gear

(2) 55mm diameter wheel

(2) Connector gear

(2) M2 metal clevis

(2) Silicone tube

(8) 3mm x 12mm screw

(2) 1.7mm x 300mm metal pushrod

(2) 1.7mm x 60mm metal rod

TAIL WHEEL ASSEMBLY

(1) 2.5mm tail gear

(1) 25mm diameter wheel

(2) 3mm collar

(2) 2mm x 10mm screw

(1) Plastic block tail gear

ELEVATOR CONTROL SYSTEM

(2) Set control horn

(2) 3mm x 35mm screw

(2) Nylon horn

(2) M2 metal clevis

(2) Silicone tube

(1) Nylon snap keeper

(1) Domino

(1) 1.7mm x 100mm metal

1

KIT CONTENTS: We have organized the parts as they come out of the box for better identification
during assembly. We recommend that you regroup the parts in the same manner. This will ensure you
have all of parts required before you begin assembly.

KIT CONTENTS

THROTTLE CONTROL SYSTEM

(1) 1.2mm x 500mm metal pusrod

(1) 3.5mm x 350mm nylon housing

(1) Metal connector

FUEL TANK

(1) Nylon fuel Tank

(1) Metal clunk

(1) Pre - assembled stopper w/ 3 tube

MISCELLANEOUS ITEMS

(1) 12mm x 150mm diameter

aluminum dihedral

(2) 6mm x 45mm nylon screw

(2) Nylon washer

(8) 2.6mm x 10mm screw

(1) Plastic engine

(4) 8mm x 10mm x 20mm wood block

(4) 2mm x 10mm screw

(1) Wood plate

(3) 1.7mm x 700mm metal pushrod

(1) 25mm x 400mm trim tape (white)

(1) 25mm x 400mm trim tape (blue)

(1) Decal sheet

(1) Cowling

(2) Main gear

(2) Nylon strap

(4) 3mm x 12mm screw

(4) Collar

(2) Wood landing gear block

(4) Wood plate

CORSAIR F4U

Instruction Manual

RUDDER CONTROL SYSTEM

(1) Control horn

(1) 3mm x 45mm screw

(1) Nylon horn

(1) M2 metal clevis

(1) Silicone tube

(1) Nylon snap keeper

AILERON CONTROL SYSTEM

(2) Control horn

(2) 3mm x 45mm screw

(2) Nylon horn

(2) M2 metal clevis

(2) Silicone tube

(2) Snap keeper

(2) 1.7mm x 180mm metal pushrod

MOTOR MOUNT ASSEMBLY

(1) Engine mount

(4) 4mm x 25mm screw

(4) 8mm flat washer

(4) 4mm lock washer

(4) 3mm x 20mm screw

(4) 3mm lock washer

TOOLS AND SUPPLIES NEEDED

• Medium C/A glue

• 30 minute epoxy

• 6 minute epoxy

• Hand or electric drill

• Assorted drill bits

• Modeling knife

• Straight edge ruler

SUGGESTION

To avoid scratching your new airplane, do not unwrap
the pieces until they are needed for assembly. Cover
your workbench with an old towel or brown paper,
both to protect the aircraft and to protect the table.
Keep a couple of jars or bowls handy to hold the
small parts after you open the bag.

NOTE:

1. Please trial fit all the parts. Make sure you have
the correct parts and that they fit and are aligned
properly before gluing! This will assure proper
assembly. The Corsair F4U is hand made from
natural materials, every plane is unique and
minor adjustments may have to be made.
However, you should find the fit superior and
assembly simple.

2. The painted and plastic parts used in this kit are
fuel proof. However, they are not tolerant of many
harsh chemicals including the following: paint
thinner, C/A glue accelerator, C/A glue debonder
and acetone. Do not let these chemicals come in
contact with the colors on the covering and the
plastic parts.

SAFETY PRECAUTION:

• This is not a toy.

• Be sure that no other flyers are using your radio

frequency.

• Do not smoke near fuel.

• Store fuel in a cool, dry place, away from

children and pets.

• Wear safety glasses.

• The glow plug clip must be securely attached to

the glow plug.

• Do not flip the propeller with your fingers.

• Keep loose clothing and wires away from the propeller.

• Do not start the engine if people are near. Do not

stand in line with the side of the propeller.

• Make engine adjustments from behind the propeller

only. Do not reach around the spinning propeller.

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• 2 bender plier

• Wire cutters

• Masking tape

• Thread lock

• Paper towels

• Rubbing alcohol

PREPARATIONS

Remove the tape and separate the ailerons
from the wing and the elevators from the stab.
Use a covering iron with a covering sock on
high heat to tighten the covering if necessary.
Apply pressure over sheeted areas to
thoroughly bond the covering to the wood.

INSTALLING THE AILERONS

1. Use the modeling knife to cut a strip of covering
from the hinge slots in the wing and aileron.

2. Locate the four CA hinge strip. Snip off the
corners so they go in easier.

3. Test fit the ailerons to the wing with the hinges.
If the hinges don’t remain centered, stick a pin
through the middle of the hinge to hold it in
position.

CUT THE COVERING

AWAY FROM THE SLOT

TEMPORARY PIN

TO KEEP HINGE

CENTERED

1

6. Tie the string from inside the wing to the end of
the servo wire. Pull the servo wire through the
wing with the string. Tape the servo wire to the
wing to prevent it from falling back into the wing.

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Remove the
covering

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CA glue

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Collar

4. Remove any pins you may have inserted into
the hinges. Adjust the aileron so there is a
small gap between the LE of the aileron and
the wing. The gap should be small, just enough
to see light through or to slip a piece of paper
through.

5. Apply six drops of thin CA to the top and bottom
of each hinge. Do not use CA accelerator. After
the CA has fully hardened, test the hinges by
pulling on the aileron.

INSTALL THE AILERONS SERVOS & PUSHRODS

1. Install the servo in the wing require the use of
one 305mm servo extension for each aileron
servo. One Y-harness connector is required
and is used to allow the aileron servo to plug
into one slot in your receiver. You may have a
computer radio that allows you to plug the
servos into separate slots and then mix them
together through the radio transmitter. If you
choose to mix them with the radio rather than
the Y-harness, refer to the instructions with
your particular brand of radio.

2. Attach the servo extension to the aileron servo.
Secure the connectors together using a large
piece of heat shrink tubing, tape or other
method for securing the connectors together.

3. Turn the wing panel right side up. Using a
modeling knife, remove the covering from over
the precut servo box.

5. Using the string as a guide and pass the string from
the servo opening to the hole in the root of the wing.

Note: A weigh tied to a string can be used first,

then tied to the servo lead to pull it through.

3

Remove the
covering

4. Remove the covering from the top of the wing.

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7

10

7. Temporarily position the aileron servo into the
servo bay. Drill a 1.6mm hole through the four
mounting holes of the servo, drilling through
the plywood mounting plate in the wing. Install
and remove a servo mounting screw into each
of the four holes. Insert a drop of thin CA into
the holes to harden the wood. After the glue has
cured, install the servo into the servo bay using
the hardware that came with your servo. Center
the servo and install a servo arm as shown.

8. Repeat step # 1 - # 6 to install the second
aileron servo in the opposite wing half.

3. Repeat step # 1 - # 2 to install the control horn
on the second aileron.

INSTALLING THE AILERON LINKAGES

1. Locate the pushrod wire. Slide a silicon clevis
retainer onto a clevis. Screw a M3 nut and a
threaded metal clevis onto the threaded end of
the wire. Tighten the nut against the clevis and
then install the clevis on the aileron control
horn.

INSTALLING THE CONTROL HORNS

1. The aileron has a block wood plate for mounting
the control horn. One aileron control horn in
positioned on each aileron. Using a ruler and a
pen, locate and mark the location of the control
horn. It should be mounted on the bottom side
of the aileron at the leading edge, in line with
the aileron pushrod.

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2. Drill through the mark you made with a (3mm)
drill bit. Hard the hole with thin CA. Install the
control horn. Remember use thread locking
compound to secure.

Note: The hole on the nylon horn is aligned

with the hinge line and pushrod is aligned with
the servo arm.

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Masking tape

Aluminum washer

Aluminum control

Plastic horn

3mm Screw

RIGHT WRONG

9

2. Locate one nylon servo arm, and using wire
cutters, remove all but one of the arms. Using a
2mm drill bit, enlarge the third hole out from the
center of the arm to accommodate the aileron
pushrod wire.

3. Plug the aileron servo into the receiver and
center the servo. Install the servo arm onto the
servo. The servo arm should be perpendicular to
the servo and point toward the middle of the wing.

4. Center the aileron and hold it in place using a
couple of pieces of masking tape.

5. With the aileron and aileron servo centered,
carefully place a mark on the aileron pushrod
wire where it crosses the hole in the servo arm.

6. Using pliers, carefully make a 90 degree bend
down at the mark made. Cut off the excess
wire, leaving about 4mm beyond the bend.

8. Repeat step # 1 - # 7 to install the second
aileron linkage. After both linkages are completed,
connect both of the aileron servo leads using a
Y-harness you have purchased separately.

JOINING THE WING HALVES

1. Mix a generous amount of 30 minute epoxy.
Working with only one wing half for now, apply
a thin layer of epoxy inside the carton tube and
to only half of the dihedral brace. Make sure to
cover the dihedral brace top and bottom as well
as the sides, and use enough epoxy to fill any
gaps.

2. Slide the dihedral brace into the carton tube up
to the center line. Remove any excess epoxy
before it dries using a paper towel and rubbing
alcohol. Allow the epoxy to cure before
proceeding.

3. Once the epoxy has cured, trial fit both wing
halves together to double check that the wing
halves still fit correctly.

4. Mix a generous amount of 30 minute epoxy.
Apply a thin layer of epoxy to the exposed half
of the dihedral brace, the inside of the carton
tube and the entire surface of both root ribs.
Make sure to use enough epoxy to fill any
gaps.

5. Slide the two wing halves together and carefully
align them at the leading and trailing edges.
Wipe away any excess epoxy using a paper
towel and rubbing alcohol. Use masking tape to
hold the two wing halves in place until the
epoxy cures.

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6. When the epoxy has fully cured, double check
the center section joint. If any gaps are present,
mix a small amount of 30 minute epoxy and
carefully fill any remaining gaps. Remove the
excess epoxy using a paper towel and rubbing
alcohol. Allow the epoxy to fully cure before
proceeding.

7. Apply the trim tape to the center section of the
wings where they join.

7. Insert the 90 degree bend down through the
hole in the servo arm. Install one nylon snap
keeper over the wire to secure it to the arm.
Install the servo arm retaining screw and
remove the masking tape from the aileron.

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INSTALLING THE landing gear
(without the retractable gear)

1. Install the landing gear ( included with the kit) to
the wooden block.

2. Remove the covering.

4. Install the wheel.

5. Make the same way for the second landing gear.

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3. Glue the wooden block in place using epoxy
glue.

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INSTALLING THE RETRACT LANDING GEAR

1. Remove the covering from the top of the wing
and install the gear servo into the servo tray.

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2. One set of the landing gear.

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epoxy glue

epoxy glue

9. Insert the retract landing gear into the block and
mark four holes onto the block. Take out the
retract landing gear and drill four horns into the
block using 2mm pit.

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28

10. Reinstall the retract landing gear using four
3mm x 12mm screw.

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7. Remove the metal driver from the wing and
install to the metal clevis. And then reinstall the
metal driver to the wing.

8. Install the nylon horn to the retract landing gear
and then install the metal rod to the nylon horn.

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6. Slide the wire pushrod from the openning of the
servo gear through the bay of the landing gear.

3. Turn the wing up side down and using a
modeling knife, remove the covering from over
precut the landing gear.

4. Remove the covering.

5. Bend the wire pushrod as picture below.

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metal clevis

metal driver

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11. Install the wheel into the connector of the gear.

12. Install the metal connector into the landing gear.

13. Make the same way for the second retract
landing gear

14. Install two metal connector to the servo arm of
the gear servo.

Open position

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Close position

INSTALLING THE HORIZONTAL STABILIZER

1. Using a modeling knife, cut away the covering from
the fuselage for the stabilizer and remove it.

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36

2. Draw a center line onto the horizontal stabilizer
and slide it into the fuselage.

35

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 it's self. Cutting into the
balsa structure may weaken it. This could lead
to possible failure during flight.

3. Check the fit of the horizontal stabilizer in its
slot. Make sure the horizontal stabilizer is
square and centered to the fuselage by taking
measurements, but don't glue anything yet.

4. With the horizontal stabilizer correctly aligned,
mark the shape of the fuselage onto the bottom
and into the top of the horizontal stabilizer using
a water soluble/ non-permanent felt-tip pen.

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2. Remove the covering.

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8. After the epoxy has fully cured, remove the
masking tape or T-pins used to hold the
stabilizer in place and carefully inspect the glue
joints. Use more epoxy to fill in any gaps that
were not filled previously and clean up the
excess using a paper towel and rubbing
alcohol.

9. Repeat step 1 - step 5 from the installing aileron
for the installing elevator.

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INSTALLING THE RUDDER

1. Repeat step 1 - step 6 from the installing aileron
for the installing rudder.

37

6. Attach the wing to the fuselage and test the
position of the elevator and adjust it as shown.

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 bottom
of the stabilizer mounting area and to the
stabilizer mounting platform sides in the
fuselage. Insert the stabilizer in place and
re-align. Double check all of your
measurements one more time before the epoxy
cures. Remove any excess epoxy using a
paper towel and rubbing alcohol and hold the
stabilizer in place with T-pins or masking tape.

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2. Place the engine into the engine mount and
align it properly with the front of the cowling.
The distance from the firewall to the front of the
engine thrust washer should 110mm.

If your engine is equipped with a remote needle

valve, we suggest installing it into the engine at
this time.

3. When satisfied with the alignment of the engine,
use a pencil and mark the mounting hole
location onto the firewall, where the throttle
pushrod will exit.

INSTALLING THE Tail Wheel

1. Install the wheel and the collar into the tail gear.

2. Install the collar into the tail gear.

3. Remove the covering and open the screw from
the left of the rudder.

4. Slide the tail gear to the fuselage through the
rudder and secure it.

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!

ENGINE INSTALLATION

INSTALLING THE THROTTLE PUSHROD HOUSING

1. Install the engine mount.

3. Glue the hinges using C.A glue.

4. Now, remove the engine. Using a 5mm drill bit,
drill holes through the firewall and the forward
bulkhead at the marks made.

5. Slide the pushrod housing through the hole in
the firewall, through the hole in the forward
bulkhead, and into the servo compartment.

6. Apply a couple of drops of thin C/A to the
pushrod housing where it exits the firewall and
where it passes through the forward bulkhead.
This will secure the housing in place.

7. Using a modeling knife, cut off the nylon
pushrod housing in front of the servo tray.

INSTALLING THE ENGINE

Locate the long piece of wire used for the

throttle pushrod. One end of the wire has been
pre-bend in to a "Z" bend at the factory. This
"Z" bend should be inserted into the throttle
arm of the engine when the engine is fitted
onto the engine mount. Fit the engine to the
engine mount using the screws provided.

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49

10 down thrust

3

0

right thrust

3. Carefully bend the second nylon tube up at a 45
degree angle (using a cigarette lighter). This
tube will be the vent tube to the muffler.

4. Carefully bend the third nylon tube down at a 45
degree angle (using a cigarette lighter). This
tube will be vent tube to the fueling valve.

When the stopper assembly is installed 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.

FUEL TANK
INSTALLING THE STOPPER ASSEMBLY

1. The stopper has been pre-assembled at the
factory.

2. Using a modeling knife, cut one length of silicon
fuel line (the length of silicon fuel line is
calculated by how the weighted clunk should
rest about 8mm away from the rear of the tank
and move freely inside the tank). Connect one
end of the line to the weighted clunk and the
other end to the nylon pick up tube in the
stopper.

!

5. 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 of it falls into the tank.

6. When satisfied with the alignment of the stopper
assembly tighten the 3mm x 20mm machine
screw until the rubber stopper expands and
seals the tank opening. Do not over tighten the
assembly as this could cause the tank to split.

7. Using a modeling knife, cut 3 lengths of fuel line
150mm long. Connect 2 lines to the 2 vent
tubes and 1 line to the fuel pickup tube in the
stopper.

8. Feed three lines through the fuel tank
compartment and through the pre-drilled hole
in the firewall. Pull the lines out from behind the
engine, while guiding the fuel tank into place.
Push the fuel tank as far forward as possible,
the front of the tank should just about touch the
back of the firewall.

Blow through one of the lines to ensure the fuel

lines have not become kinked inside the fuel
tank compartment. Air should flow through
easily.

Do not secure the tank into place permanently

until after balancing the airplane. You may
need to remove the tank to mount the battery
in the fuel tank compartment.

9. To secure the fuel tank in place, apply a bead of
silicon sealer to the forward area of the tank,
where it exits the fuselage behind the engine
mounting box and to the rear of the tank at the
forward bulkhead.

!

120mm

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SERVO INSTALLATION

INSTALLING THE FUSELAGE SERVOS

1. Install the rubber grommets and brass collets
into the elevator, rudder and throttle servos. Test
fit the servos into the servo tray. Trim the tray if
necessary to fit your servos

2. Mount the servos to the tray using the mounting
screws provided with your radio system.

INSTALLING THE ELEVATOR PUSHROD

1. Locate the pushrod exit slot on the right side
and left side of the fuselage. It is located
slightly ahead and below the horizontal
stabilizer.

2. Carefully cut away the covering material from
the slot.

3. Working from inside the fuselage, slide the
threaded end of the pushrod until it reaches the
exit slot. Carefully reach in with a small screw
driver and guide the pushrod out of the exit slot.

4. Install the clevis into the two elevator pushrod.
Make sure 6mm of thread shows inside the clevis.

5. The control horn should be mounted on the
bottom, left side and right side of the elevator at
the leading edge, in line with the elevator
pushrod.

6. Drill two 1,6mm holes through the elevator
using the control horn as a guide and screw the
control horn in place.

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8. Connect the two elevator pushrod using the
metal domino.

9. Locate one nylon servo arm, and using wire
cutters, remove all but one of the arms. Using
a 2mm drill bit, enlarge the third hole out from
the center to accommodate the elevator
pushrod wire.

10. Plug the elevator servo into the receiver and
center the servo. Install the servo arm onto the
servo. The servo arm should be perpendicular
to the servo and point toward the middle of the
fuselage.

11. Be sure both elevator halves are flat. Slightly
adjust the wire joiner if necessary. Center both
elevator halves and hold them in place using a
couple of pieces of masking tape.

12. With the elevator halves and elevator servo
centered, carefully place a mark on the
elevator pushrod wire where it crosses the
hole in the servo arm.

13. Using pliers, carefully make a 90 degree bend
up at the mark made. Cut off the excess wire,
leaving about 8mm beyond the bend.

14. Insert the 90 degree bend up through the hole
in the servo arm, install one nylon snap keeper
over the wire to secure it to the arm. Install the
servo arm retaining screw and remove the
masking tape the elevator halves.

7. Attach clevis to the third hole in the control
horn. Install a silicone tube on the clevis.

glue

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INSTALLING THE RUDDER PUSHROD

1. Locate the pushrod exit slot on the right of the
fuselage.

2. Carefully cut away the covering material from
the slot.

3. Working from inside the fuselage, slide the
threaded end of the remaining pushrod down
the inside of the fuselage until the pushrod
reaches the exit slot. Carefully reach in with a
small screw driver and guide the pushrod out
of the exit slot.

4. Install the clevis on the rudder pushrod. Make
sure 6mm of thread shows inside the clevis.

5. The control horn should be mounted on the
right side of the rudder at the leading edge, in
line with the rudder pushrod.

6. Drill two 1,6mm holes through the rudder using
the control horn as a guide and screw the
control horn in place.

7. Attach clevis to the third hole in the control
horn. Install a silicone tube on the clevis.

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57

8. Locate one nylon servo arm, and using wire
cutters, remove all but one of the arms using a
2mm drill bit, enlarge the third hole out from
the center to accommodate the rudder pushrod
wire.

9. Plug the rudder servo into the receiver and
center the servo. Install the servo arm onto the
servo.

10. Center the rudder and hold it in place using a
piece of masking tape.

11.With the rudder and rudder servo centered,
carefully place a mark on the rudder pushrod
wire where it crosses the hole in the servo
arm.

12.Using a pliers, carefully make a 90 degree
bend up at the mark made. Cut off excess
wire, leaving about 8mm beyond the bend.

13. Insert the 90 degree bend up through the hole
in the servo arm. Install one nylon snap keeper
over the wire to secure it to the arm. Install the
servo arm retaining screw and remove the
masking tape from the rudder.

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!

INSTALLING THE THROTTLE

1. Install one adjustable metal connector through
the third hole out from the center of one servo
arm, enlarge the hole in the servo arm using a
2mm drill bit to accommodate the servo
connector. Remove the excess material from
the arm.

After installing the adjustable metal connector

apply a small drop of thin C/A to the bottom
nut. This will prevent the connector from
loosening during flight.

2. Plug the throttle servo into the receiver and
turn on the radio system. Check to ensure that
the throttle servo output shaft is moving in the
correct direction. When the throttle stick is
moved forward from idle to full throttle, the
throttle barrel should also open and close
using this motion. If not, reverse the direction
of the servo, using the transmitter.

3. Slide the adjustable metal connector / servo
arm assembly over the plain end of the
pushrod wire. Position the throttle stick and the
throttle trim at their lowest positions.

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MOUNTING THE COWL

1. Remove the muffler and needle valve assembly
from the engine. Slide the fiberglass cowl over
the engine.

2. Measure and mark the locations to be cut out
for engine head clearance, needle valve,
muffler,. Remove the cowl and make these
cutouts using a rotary tool with a cutting disc
and a rotary sanding drum attachment.

3. Slide the cowl back into place. 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 the middle of the precut
opening. Hold the cowl firmly in place using
several pieces of masking tape.

4. While holding the cowl firmly in position, drill
four 1,6mm pilot holes through both the cowl
and the side edges of the firewall.

5. Using a 3mm drill bit, enlarge the four holes in
the cowling

Enlarging the holes through the cowl will

prevent the fiberglass from splitting when the
mounting screws are installed.

6. Slide the cowl back over the engine and
secure it in place using four 3mm x 12mm
wood screws.

7. Install the muffler. Connect the fuel and
pressure lines to the carburator, muffler and
fuel filler valve. Tighten the screws completely.

4. Manually push the carburator barrel fully
closed. Angle the arm back about 45 degree
from center and attach the servo arm onto the
servo. With the carburator barrel fully closed,
tighte the set screw in the adjustable metal
connector.

5. Remove the excess throttle pushrod wire using
wire cutters and install the servo arm retaining
screw.

FINAL ASSEMBLY

INSTALLING THE SPINNER

Install the spinner back-plate, propeller and

spinner cone. The spinner cone is held in
place using two 3mm x 20mm wood screws.

The propeller should not touch any part of the

spinner cone. If it dose, use a sharp modeling
knife and carefully trim away the spinner cone
where the propeller comes in contact with it.

INSTALLING THE RECEIVER AND BATTERY

1. Plug the servo leads and the switch lead into
the receiver. You may want to plug an aileron
extension into the receiver to make plugging
in the aileron servo lead easier when you are
installing the wing. Plug the battery pack lead
into the switch.

2. Wrap the receiver and battery pack in the
protective foam to protect them from vibration.
Use a rubber band or masking tape to hold
the foam in place.

3. Position the battery pack and receiver behind
the fuel tank. Use the two light plywood
pieces, placed over the battery and receiver
and glue to the fuselage sides to hold the
battery and receiver securely in place. Use
15mm triangle pieces glued between the
fuselage sides and the plywood pieces to
reinforce the joints.

Do not permanently secure the receiver and

battery until after balancing the model.

4. Using a 2mm drill bit, drill a hole through the
side of the fuselage, near the receiver, for the
antenna to exit.

INSTALLING THE SWITCH

1. The switch should be mounted on the fuselage
side, opposite the muffler, close enough to the
receiver so the lead will reach. Use the face
plate of the switch cut out and locate the
mounting holes.

2. Cut out the switch hole using a modeling knife.
Use a 2mm drill bit and drill out the two
mounting holes through the fuselage side.

3. Secure the switch in place using the two
machine screws provided with the radio
system.

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CORSAIR F4U

Instruction Manual

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INSTALLING THE WING

1. Using a modeling knife, remove the covering
from over the two pre-drilled holes in the
forward bulkhead that accept the wing hold
down dowels.

2. Using a modeling knife, remove the covering
from over the two pre-drilled wing mounting
holes in the trailing edge of the wing. Remove
the covering from over the holes on both the
top and the bottom of the wing.Glue the nylon
plate of the screw in place.

3. Place the wing into the wing saddle to check
the fit. Temporarily secure the wing in place
using the two 6mm x 45mm nylon screws.

Do not over tighten the screws.

ALIGNING THE BELLY PAN

1. With the wing securely attached to the
fuselage, trial fit the belly pan to the bottom of
the wing. The sides of the belly pan, at both
the front and the rear, should be flush with the
sides of the fuselage.

2. When satisfied with the fit, hold the belly pan
in place on the wing using pieces of masking
tape.

3. With the belly pan hold firmly in place and
aligned properly, use a felt tip pen and outline
the belly pan onto the wing surface on the two
outside edges of the belly pan.

4. Remove the belly pan. Using the lines as a
guide, use a modeling knife and carefully
remove about 4mm of the covering from just
inside the edge of each line. Be careful not to
cut in to the balsa under the covering.

5. Remove the covering from the rear of the belly
pan.

105mm

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
105mm BACK FROM THE LEADING EDGE
OF THE WING, AT THE FUSELAGE. This
location is recommended for initial test flying
and trimming. There is a 5mm margin forward
and aft. BALANCE A PLANE UPSIDE DOWN
WITH THE FUEL TANK EMPTY.

2. Mount the wing to the fuselage. Using a couple
of pieces of masking tape, place them on the
top side of the wing 105mm back from the
leading edge, at the fuselage sides.

3. Turn the airplane upside down. Place your
fingers on the masking tape and carefully lift
the plane.

4. If the nose of the plane falls, the plane is nose
heavy. To correct this first move the battery
pack further back in the fuselage. If this is not
possible or does not correct it, stick small
amounts of lead weight on the fuselage under

LATERAL BALANCE

After you have balanced a plane on the C.G.

You should laterally balance it. Doing this will
help the airplane track straighter.

5. Turn the airplane upside down. Attach one loop
of heavy string to the engine crankshaft and
one to the tail wheel wire. With the wings level,
carefully lift the airplane by the string. This may
require two people to make it easier.

6. If one side of the wing fall, that side is heavier
than the opposite. Add small amounts of lead
weight to the bottom side of the lighter wing
half's wing tip. Follow this procedure until the
wing stays level when you lift the airplane.

17

CORSAIR F4U

Instruction Manual

CONTROL THROWS

1. We highly recommend setting up a plane using
the control throws listed.

2. The control throws should be measured at the
widest point of each control surface.

3. Check to be sure the control surfaces move in the
correct directions.

the horizontal stabilizer. If the tail of the plane

falls, the plane is tail heavy. To correct this,
move the battery and receiver forward or if this
is not possible, stick weight into the firewall.
When balanced correctly, the airplane should
sit level or slightly nose down when you lift it up
with your fingers.

Ailerons : 15mm up 15mm down
Elevator : 12mm up 12mm down
Rudder : 20mm right 20mm left

Aileron Control

15mm

15mm

Rudder Control

20mm

20mm

Elevator Control

12mm

12mm

LOW RATE

64

65

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INSTALLING THE BELLY PAN

1. Mix up a generous amount of 30 minute epoxy.
Apply a thin layer of epoxy to the bottom
edges of the belly pan. Carefully set the belly
pan back in place on the wing and align it as
you did previously. Remove any excess epoxy
using a paper towel and rubbing alcohol.

2. Hold the belly pan firmly in place using strips of
masking tape along the entire gluing surface.
Allow the epoxy to fully cure before you
remove the masking tape.

Be carefully not to get any epoxy between the

wing and the fuselage

I/C FLIGHT WARNINGS

Always operate in open areas, away
from factories, hospitals, schools,
buildings and houses etc. NEVER fly
your aircraft close to people or built
up areas.

THE PROPELLER IS DANGEROUS
Keep fingers, clothing (ties, shirt
sleeves, scarves) or any other loose
objects that could be caught or drawn
in, away from the propeller. Take care
at ALL times.

Keep all onlookers (especially small
children and animals) well back from
the area of operation. This is a flying
aircraft, which will cause serious
injury in case of impact with a person
or animal.

NEVER fly near power lines, aerials
or other dangerous areas including
airports, motorways etc.

NEVER use damaged or deformed
propellers or spinners.

DO NOT dispose of empty fuel
containers on a fire, this can lead to
an explosion.

NEVER fly in wet conditions or on
windy or stormy days.

ALWAYS adjust the engine from
behind the propeller, and do not allow
any part of your body to be in line
with the propeller.

18

I/C FLIGHT GUIDELINES

Made in Vietnam

When ready to fly, first extend the
transmitter aerial.

Operate the control sticks on the
transmitter and check that the control
surfaces move freely and in the
CORRECT directions.

ALWAYS land the model INTO the
wind, this ensures that the model lands
at the slowest possible speed.

Switch on the transmitter.

Switch off the transmitter.

Check that the transmitter batteries
have adequate power.

Switch off the receiver.

Switch on the receiver.

ALWAYS take off into the wind.

Check that the wings are correctly
fitted to the fuselage.

If the model does not respond correctly
to the controls, land it as soon as
possible and correct the fault.

Empty the fuel tank after flying, fuel left
in the tank can cause corrosion and
lead to engine problems.