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 100mm
BACK FROM THE LEADING EDGE OF THE
WING, AT THE FUSELAGE.
2. Mount the wing to the fuselage. Using a couple of
pieces of masking tape, place them on the top side
of the wing 100mm 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 heavy nose.
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 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.
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
1. 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.
2. 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.
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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.
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.
FINAL ASSEMBLY
PARTS REQUIRED
· (1) Spinner
· (2) 3mm x 20mm wood screw.
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.
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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
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- Glue the plastic antenna.