Top Flite TOPA0110 - Manual (Page 55)

snappier “feel” and often improves knife-edge
capabilities. In any case, do not balance your
model outside the recommended range.
2. With the wing attached to the fuselage, all
parts of the model installed (ready to fly), an
empty fuel tank, and the landing gear down
(extended), hold the model upside-down with the
stabilizer level.
3. Lift the model at the C.G. marks. If the tail
drops when you lift, the model is “tail heavy” and
you must add weight* to the nose to balance. If
the nose drops, it is “nose heavy” and you must
add weight* to the tail to balance. NOTE: Nose
weight may be easily installed by using a spinner
weight or heavy hub (available in assorted
weights), or by gluing strips of lead into the
engine compartment. Tail weight may be added
by using “stick-on” lead weights, and later, if the
balance proves to be OK, you can open the fuse
bottom and glue these in permanently.
*If possible, first 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.
FINAL HOOKUPS AND CHECKS
1. Make sure the control surfaces move in
the proper direction as illustrated in the following
sketches:
2. Adjust your pushrod hookups as necessary
to provide the proper control surface movements
as listed at right.
NOTE: These control surface “throws”
are approximate and provide a good
starting point for the first flights with
your P-51D. You may wish to change
the throws slightly to provide the
smoothness or quickness that you
prefer.
CONTROL SURFACE THROWS:
We recommend the following control surface
throws:
NOTE: Throws are measured at the widest
part of the elevators, rudder, ailerons and
flaps.
ELEVATOR:
(High Rate)
11/16” up 11/16” down
(Low Rate) 7/16” up 7/16” down
RUDDER:
(High Rate)
1-1/8” right 1-1/8” left
(Low Rate) 7/8” right 7/8” left
AILERONS:
(High Rate)
11/16” up 11/16” down
(Low Rate) 1/2” up 1/2” down
FLAPS:
(Full Down)
1-11/16” down
NOTE: If your radio does not have “dual
rates,” then set up the control surfaces to
move at the high rate throws.
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