MD-11 Flight Crew Operations Manual
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Automatic Flight -
Controls and Displays
Auto.30.19
QFE operation is selected from the ECP. In this case the tape turns green,
baroset below the tape change to QFE value, QFE is displayed, and a QNH
box appears below the baroset. This box has the QNH baroset value and QNH
altitude in feet (or meters if selected).
If meters is selected from the FCP, scale and altitude stay in feet. Metric
altitude is in cyan above the feet and is labeled M. If in QFE, the QNH metric
is above the QNH altitude.
3. Vertical Speed
Current vertical speed (V/S) is shown by a wide outline pointer. Range is +/-
4,000 fpm, with tick marks every 100 feet below 1,000 feet. Pointer appears
when V/S is more than 100 fpm and remains until below 50 fpm.
If V/S is more than 100 fpm, current V/S is shown digitally above scale for
positive V/S, or below scale for negative V/S. Digital readout limits are 9,900
fpm.
When the aircraft is in V/S mode, the selected V/S is shown by a filled white
bug on the scale. When the selected V/S is achieved, the pointer fits in the
bug.
4. Minimum Bug
Solid triangle on the left is RA minimum bug. RA is set with the ECP
MINIMUMS control knob in the RA position. This bug is white color (above
minimum) or amber (below minimum).
A solid triangle on the right side is a BARO DH minimum bug. BARO DH is
set with the ECP MINIMUMS control knob in the BARO position. This bug
is white above minimums and amber below minimums.
5. Selected Minimum
Value is amber, boxed and flashes for 5 seconds when minimum altitude is
reached. It stays amber after flashing. This condition can be reset by pushing
the ECP MINIMUMS control knob.
October 02, 2006
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