Top Flite TOPA0951 - Manual (Page 10)

10
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5. Hook up the left fl ap using the hardware shown—
using care not to drill through the top of the wing, drill
1/16" [1.6mm] holes for the #2 × 1/2" [13mm] Phillips
screws, positioning the base of the horn 5/16" [8mm]
from the wing trailing edge as shown. Use #2 washer-
head Phillips screws for mounting the hatch.
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6. IMPORTANT! Temporarily remove the horn
mounting screws from the fl ap, add a few drops of
thin CA to the holes, allow to harden, and then remount
the horn. Perform the same procedure for the hatch
screws too.
You can set up the fl ap throw now, or wait until the
model is fi nished and you are programming the radio.
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7. If you do wish to set up the fl aps now, guide the
fl ap servo wire through the ribs and the hole in the
top of the wing and temporarily connect the fl ap servo
to the appropriate channel in your receiver (a servo
extension may be useful here). Connect a switch and
a battery to the receiver and retrieve your transmitter
so you can power the servo.
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8. Turn on your transmitter and receiver. Start by
setting the ATVs on your fl ap channel in your transmitter
to 50% at both ends (up/down). This should be a good
starting point for the correct fl ap throw. With the fl ap
switch in the
retracted position (fl aps up), the outer
hole in the servo arm should be slightly above the
hatch. With the switch in the extended position (fl aps
down), the outer hole in the servo arm should be
slightly
below the hatch. Once you have the servo arm
correctly positioned, cut off the unused arms. Caution:
Don’t forget to install the servo arm screw.
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9. Mount the hatch to the wing and connect up the
pushrod to the outer hole in the servo arm. Adjust the
length of the pushrod and fi ne tune the ATVs to achieve
the correct fl ap throw as illustrated on page 29.
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10. Hook up the right fl ap the same way. This
time, connect both servos to the fl ap channel using a
Y-connector and do not adjust the ATVs. Simply adjust
the length of the right fl ap pushrod to duplicate the
throw of the left fl ap.
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11. Hook up the ailerons the same as the fl aps with
the following exception: When the servo is centered, the
servo arm should be set approximately
ten degrees
forward. This will provide symmetrical aileron throw even
though the servo rotates the same in both directions.
JOIN THE WING PANELS
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1. Securely glue together two sets of two plywood
wing joiners to make two complete joiners.