S-TEC ST360, Pilot Operating Handbook

19

In-Flight

1. Encoder and Transponder ON (Altitude portion of the selector
will not operate unless the Altitude Encoder is ON and operating).

2. Check baro setting, adjust as necessary.

3. Select desired altitude.

4. Select desired vertical speed.

5. Engagement: simultaneously depress the VS and ALT Switches
on the autopilot programmer computer.  This will engage VS Mode
and arm the altitude hold mode for activation by the altitude selector.

NOTE: Vertical speed can be controlled either by using the VS
selector or by using the manual VS modifier knob on the autopi-
lot programmer computer.  When using the VS selector, SEL will
be highlighted on the remote annunciator to remind the pilot that
the VS selector is in use.  Automatic VS reduction, for a smooth
capture, will occur as the target altitude is approached.  If desired,
the pilot can push the MAN button to transfer VS control to the
autopilot VS knob.  SEL on the optional remote annunciator will
extinguish and automatic VS reduction will not occur as the tar-
get altitude is approached.

IMPORTANT

When using the altitude selector portion of this system, always be
sure the selected vertical speed direction (sign) matches the direc-
tion required to achieve the selected altitude.  The system includes
safeguards that, under normal conditions, will advise the pilot of
an altitude/vertical speed compatibility problem.  It will also au-
tomatically change the sign of the vertical speed as required, how-
ever, it is possible to setup an incompatible altitude vertical speed
combination, so always check that the selected altitude is correct.