OPERATOR’S MANUAL
CMA-9000 FLIGHT MANAGEMENT SYSTEM
Page A-61
August 17, 2010
HDG/DA (2L): Aircraft Heading and Drift angle. Display in degrees.
HDG Display:
• Large font : In dead reckoning mode, when the heading input fails, this field will revert to large font and keep
its last value before the failure if the sensor TAS is valid.
• Blanks: Heading failure and TAS not available when in DR and no manual entry or manual entry has been
reset by a ground speed/track entry.
• Dashes: Heading failure and TAS is available when in DR and no manual entry or manual entry has been
reset by a ground speed/track entry.
HDG Entry:
• Manual entry: If the sensor TAS is valid in dead reckoning mode and the sensor heading is failed, the
heading is manually enterable.
TAS (2R): True Air Speed (in knots).
MAGVAR (3L): Magnetic variation at aircraft position. Display in degrees.
ALT (xxx) [5L]: FMS system altitude, displayed in feet. The (xxx), displayed in white font, identifies the type of
altitude displayed. It can be, in order of priority:
• (CORR): When a baro-corrected altitude is available. The baro-corrected altitude can be:
• a baro-corrected altitude received from the ADC, or
• a standard pressure altitude received from the ADC with a QNH baro-correction applied, or
• a baro-inertial altitude received from the IRS with a QNH baro-correction applied.
• (STD): When a standard pressure altitude is received from the ADC.
• (IRS): When a baro-inertial altitude is received from the IRS.
• (GPS): When a geometric altitude is received from the GPS.
QNH [6L]
QFE [6L]: Displayed when no baro-corrected altitude is received from the ADC and either a pressure or an IRS
baro-inertial altitude is available. Displayed, in small font, when a baro-correction (QNH/QFE) is received from
an external source. The field is never displayed when the altitude source is GPS.
The displayed unit (mb or inHg) can be toggled via LSK 6L when the scratchpad is empty.
RTA PROGRESS 3/4
Used to evaluate the required true air speed (TAS) to reach a waypoint at the required time of arrival (RTA), or
to evaluate the estimated time of arrival at the RTA waypoint under different TAS and wind conditions.
Refer to Appendix F - Performance VNAV section for further information on the RTA Progress 3/4 page.
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