Top Flite TOPA0140 User Manual

Page 57

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your wheels to the landing gear with a 3/16"
[4.8mm] wheel collar on both sides of both wheels.
Secure the wheel collars with a drop of thread lock
on the set screws.

Note: We recommend you file a small flat spot on
the landing gear wire where the set screws
are located.

Skip to step 5.

2. Use a small file or a rotary tool with a cut-off

wheel to grind small flat spots on the main landing
gear wires so the set screws in the retracts will
securely lock the wires in position. Adjust the flat
spots until you can achieve the alignment detailed
earlier in the manual when you were first installing
the landing gear. File flat spots on the ends of the
wires for the set screws of the axles and on the
axles for the set screws of the wheel collars.

3. Securely fasten the axles to the landing gear

wires. Use a drop of thread lock on the set screws
or, for the most security, silver solder the axles to
the main gear with the set screws in place.

4. Securely mount the landing gear to the

retracts using a small drop of thread lock on the
set screws. Mount the wheels to the axles with
wheel collars and, you guessed it, a small drop of
thread lock (if you don’t thread lock the set screws,
you will lose a wheel!).

5. Mount a 1-1/4" [32mm] tail wheel on the tail

gear wire and secure it with a 3/32" [2.4mm] wheel
collar and a drop of thread lock.

6. If you haven’t already done so, route your air

lines and servo connectors in the wing and in the
fuse. Connect the servos in the fuselage to the
receiver and plug in servo extension cords for the
aileron and flap servo. Make sure no wires or air
lines interfere with any of the servo arms,
pushrods, etc.

7. Take the servo arms off your servos, turn on

your transmitter and center all the trims. Reinstall all
the servo arms and secure them with the screws.

8. Double-check all the servos and make sure

the servo arms are secure and all the clevises
have a silicone retainer.

9. Make sure the control surfaces move in the

proper direction as illustrated in the following sketch.

10. Adjust your pushrod hookups and set up

your radio to provide the control surface

movements as follows. Use a ruler or a Great
Planes AccuThrow

Control Surface Deflection

Meter (GPMR2405) to measure the throws.

TRIM MIXING: If your transmitter has Elevator to
Retract mixing, we recommend mixing 1/16"
[1.6mm] of down elevator when the gear is
retracted. This will keep the nose level when the
gear is cycled.

CONTROL SURFACE THROWS

Throws are measured at the widest part of the
control surface. We recommend the following
control surface throws:

High rate

Low rate

Elevator

5/8" up

1/2" up

5/8" down

1/2" down

Rudder

1-1/8" left

7/8" left

1-1/8" right

7/8" right

Ailerons

3/4" up

1/2" up

5/8" down

3/8" down

Flaps

Landing

position #1

1/2"

position #2

1-1/4"

The balance point and control surface
throws listed in this manual are the ones at
which the Spitfire flies best. Set up your
aircraft to those specifications. If, after a few
flights, you would like to adjust the throws
or C.G. to suit your tastes, that is fine. Too
much control surface throw can make your
model difficult to control or force it into a
stall, so remember...More is not better.

CARBURETOR WIDE OPEN

RUDDER MOVES RIGHT

LEFT AILERON MOVES DOWN

RIGHT AILERON MOVES UP

ELEVATOR MOVES UP

4-CHANNEL

TRANSMITTER

(STANDARD MODE 2)

4-CHANNEL RADIO SETUP

TRANSMITTER

4-CHANNEL

TRANSMITTER

4-CHANNEL

TRANSMITTER

4-CHANNEL

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