Meggitt S-TEC Fifty Five X, Руководство по эксплуатации для пилотов

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1st Ed. Jul 15, 06 3-11
S–TEC
3.1.4 Altitude Hold (ALT) Mode
The altitude hold mode can only be engaged if a roll mode (HDG, NAV, APR,
GPSS, REV) is engaged. With a roll mode engaged and the aircraft at the
desired altitude, press the ALT mode selector switch to engage the altitude hold
mode. The ALT annunciation will appear as shown in Fig. 3-14. The autopilot
will hold the aircraft at its current absolute pressure altitude. The captured
altitude may be modified for barometric pressure changes by rotating the
Modifier Knob either clockwise (CW) for an increase in altitude, or counter-
clockwise (CCW) for a decrease in altitude. Each detent equals 20 feet, and the
range is
±
360 feet from the original captured altitude. A typical view of the PFD
with the altitude hold mode engaged is shown in Fig. 3-15. Engagement of the
altitude hold mode will reset the PFD Alt Bug to the captured altitude.
Fig. 3-14. AP Display, HDG and ALT HOLD Modes Engaged
Fig. 3-15. PFD Display, HDG and ALT HOLD Modes Engaged