MD-11 Flight Crew Operations Manual
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Automatic Flight -
Controls and Displays
Auto.30.16
If airspeed is no-computed data (less than 53 knots and A/C on ground), the
IRS ground speed and TAXI will be shown. This groundspeed display is
replaced with an amber NO TAXI if any IRS is in align mode.
3. Speed Bugs
V1, VR, V2, FR, SR, GR, SE, FE, and GE bugs are on outside of the tape. If
Vspeeds have not been computed or entered (aircraft on ground), V1, VR, and
V2 are attached to dashed boxes.
FR: Flap Retract (FMS calculated) - Displayed only when flaps are extended.
Amber when speed is less than flap retract speed. Displayed green when
speed is greater than flap retract speed.
SR: Slat Retract (FMS calculated) - Displayed only when slats are extended
and flaps are up. Amber when speed is less than slat retract speed. Green
when speed is greater than slat retract speed.
GR: Gear Retract (EIS calculated) - Displayed only when landing gear is
down. Normally green, turns amber if gear is still extended above 230 knots
or .7 Mach.
SE: Slat Extend (EIS calculated) - Displayed only when slats are retracted.
Green when speed is less than 280 knots. Amber when speed is greater than
280 knots (.55 Mach).
F15, F28, F35, F50 (EIS calculated): Flap Extend - Displayed symbol
depends on flap configuration and speed. Green when speed is less than the
applicable flap extend limit speed. Amber when speed is greater than
applicable flap extend limit speed. Flap extend limit speeds are:
• F15 - 255 knots.
• F28 - 210 knots.
• F35 - 190 knots.
• F50 - 175 knots.
GE: Gear Extend (EIS calculated) - Displayed whether landing gear is
extended or retracted. Green when speed is less than 260 knots (.7 Mach).
Amber when speed is greater than 260 knots (.7 Mach).
4. Airspeed
Shown at the center of tape.
• Box and digits red - A/S below Vs or exceeds Vmo/Mmo.
• Box and digits amber - A/S below Vmin or exceeds Vmax.
Vss (from FMC) is the end of a red checker column.
Vmin (from FMC) is a line at the end of an amber column extending from
Vss.
October 02, 2006
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