Climb-out/Enroute
3-15
commandable vertical modes (ALT, IAS, or VS) were active
immediately prior to engaging CWS, the bug associated with the
active mode (e.g. altitude bug for ALT mode, IAS bug for IAS
mode, and VS bug for VS mode) will stay synchronized with the
actual aircraft state and when the CWS button is no longer
depressed, the new bug value becomes the new target.
If PITCH and/or BANK modes were active at the time of CWS
engagement, the pitch and bank values at the time of CWS
button release will become the new pitch and bank values the
autopilot will hold.
The autopilot modes annunciator indication is white “
CWS
”. The
autopilot modes annunciators that were lit immediately prior to
entering CWS remain lit in the same manner and the “
CWS
”
annunciation takes the place of the “AP”, “FD”, or “AP READY”
annunciation location while it is active.
TAKE OFF/GO AROUND (TO/GA) MODE
TO/GA mode is entered by pressing the TO/GA button on or near
the aircraft throttle(s) in those aircraft that support this
functionality.
The system uses the current autopilot state to determine if Take-
Off (TO) or Go-Around (GA) behavior is desired.
If the autopilot was not engaged in any mode (“
AP READY
”
displayed in the autopilot modes annunciators strip), then
activating the TO/GA control will put the autopilot into Flight
Director (“
FD
”), Pitch (“
PITCH
”), and Roll (“
ROLL
”) modes. In
this case, the system will provide flight director command bars,
that if followed, result in a fixed pitch that results in climb under
full power for the aircraft type and zero roll. That pitch value
varies with aircraft type but ranges from 5 deg (e.g. most single
engine piston aircraft) to 8 deg (e.g. most turbine aircraft).
Once safely away from the ground, the expectation is that the
pilot will then adjust the autopilot targets and modes as desired.
If the autopilot had been in any mode other than
AP READY
at
the time of TO/GA control activation, it is assumed that Go-
Around behavior is desired as described in Section 4 of this
guide.
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