Set The Control Throws - GREAT PLANES Aviastar elite Instruction Manual

Set the Control Throws

To ensure a successful fi rst fl ight, set up your Avistar Elite
according to the control throws specifi ed in this manual. The
throws have been determined through actual fl ight testing
and accurate record-keeping, allowing the model to perform
in the manner in which it was intended. If, after you have
become accustomed to the way the Avistar Elite fl ies, you
would like to change the throws to suit your taste, that is
fi ne. However, too much control throw could make the model
too responsive and diffi cult to control, so remember, "more
is not always better."
Measure the high rate throws fi rst...
❏
1. Place a ruler fl at on your work surface against the
elevator. Move the elevator up with your transmitter and move
the ruler forward so it will remain contacting the trailing edge.
The distance the elevator moves up from center is the "up"
elevator throw. Measure the down elevator throw the same way.
❏
2. Compare your measurements to the control throw table.
The plane was set up during your build so that the high rate
throws should match or be very close to the measurements in
the table. If they are slightly different, use the ATV (adjustable
travel volume) or EPA (end point adjustment) in your transmitter
to fi ne tune the throws to match. If the throws are signifi cantly
different (more than 1/8" [3mm]), we suggest altering the
positions of the pushrods in the servo arms and control horns
to mechanically change the control throw rather than changing
it digitally. This will ensure that you do not lose "resolution" of
your control throws. If necessary, change the positions of the
pushrods according to the sketches.
LESS
THROW
MORE
THROW
Pushrod Farther Out
MORE
THROW
❏
3. Measure and set the low rate elevator throws and the
high and low rate throws for the rest of the control surfaces
the same way. Refer to your radio manual for setting up and
using low rates. Flying with low rates will reduce the chance
of over-controlling the plane and is recommended for your fi rst
few fl ights if you are a beginning pilot. As you become more
experienced, low rates may still be preferable for takeoffs
and landings.
NOTE: The throws are measured at the widest part of the
elevator, rudder and ailerons.
These are the recommended control surface throws:
LOW RATE
Up & Down
5/16"
[8 mm] 11°
Right & Left
1/2"
[13 mm] 13°
Up & Down
3/8"
[10 mm] 11°
29
Pushrod Farther Out
Pushrod Closer In
Pushrod Closer In
LESS
THROW
HIGH RATE
Up & Down
7/16"
[11mm] 16°
Right & Left
7/8"
[22 mm] 22°
Up & Down
9/16"
[14mm] 17°