AL50/MPG5
Chapter 8. OPERATION OF THE SIMULATED AIRCRAFT’S SYSTEMS
8-10. AUTOMATIC FLIGHT
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FD: This button activates the flight director (FD).
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AP: This button activates the autopilot (AP) as well as FD. If no other mode is engaged,
the AP will maintain the current pitch attitude and the wings level.
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HDG: In heading select mode the autopilot searches and follows the heading set with the
orange heading bug on the HSI. To use heading select mode, set the heading bug to the
desired heading, then engage AP (if not yet active) and HDG. You can also set the bug with
the AP engaged.
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ALT: In altitude maintain mode the autopilot keeps the aircraft on its current altitude. To
use it, bring the aircraft manually (or, if AP engaged, by means of the pitch trim switch)
to the desired altitude, then activate AP (if not yet the case) and ALT. The autopilot will
maintain the altitude at which the aircraft is when ALT mode is engaged.
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APPR: In approach mode the autopilot follows an ILS’s localizer and glideslope. Use it as
follows:
1. Set the aircraft on a course that intercepts localizer and glideslope.
2. Set the ILS frequency on NAV1.
3. Activate AP and APPR. APPR ARMED will illuminate while the aircraft is not on the
ILS.
4. When the localizer has been captured, HDG SEL will disengage (if engaged before),
APPR ARMED will disappear and APPR CPLD will illuminate.
5. When the glideslope has been captured, ALT will disengage (if engaged before), GS
CPLD will illuminate.
6. Disconnect the autopilot at 200 feet AGL.
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VS: This mode maintains the vertical speed which you have set either manually or by means
of the autopilot’s pitch trim switch. The autopilot will maintain the vertical speed at which
the aircraft is when VS mode is engaged.
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NAV: In NAV mode the autopilot follows a VOR signal. Use it as follows:
1. Set the VOR frequency on NAV1.
2. Search the VOR by means of the course pointer on the HSI and set the heading bug in
the desired position.
3. Engage the AP, mode HDG and NAV. NAV ARM will illuminate.
4. When the VOR signal has been captured, HDG disengages (if engaged before), NAV
ARM will disappear and NAV CPLD illuminate.
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IAS: In IAS mode the autopilot maintains the aircraft’s current speed (the aircraft’s speed
at the moment of IAS mode engagement).
When one of the modes is being engaged, an aural signal will sound.
19/1/2007
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