SECTION 6 – AUTOMATIC

FLIGHT CONTROL

6.2Flight Director Operation

With the flight director activated, the aircraft can be hand-flown to follow the path shown by the Command Bars. Maximum commanded pitch (+20°/-15°) and bank (22°) angles, vertical acceleration, and roll rate are limited to values established during AFCS certification. The flight director also provides commands to the autopilot.

Activating the Flight Director

Pressing the FD or AP Key (when the flight director is not active) activates the flight director in default pitch/roll modes. Pushing the GA Switch or any flight director mode key activates the flight director in the respective mode(s).

The flight director may be turned off by pressing the FD Key.

Command Bars

Upon activation of the flight director, Command Bars are displayed on the PFD as a single cue. If the attitude information sent to the flight director becomes invalid or unavailable, the Command Bars are removed from the display. The Command Bars do not override the aircraft

symbol.

Command Bars

Aircraft Symbol

Figure 6-2 Command Bars

Pitch Modes