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Rev 5, Jul 21, 2005 Flight Crew Operating Manual Volume 2
FLIGHT INSTRUMENTS
Attitude Director Indicator (ADI)
GF1110_014
Indicates Chapter in which information on item may be found.
Volume 2 Flight Crew Operating Manual Rev 5, Jul 21, 2005
AIRSPEED TAPE
Indicated airspeed is derived from the selected ADC. An airspeed tape capable of displaying from 30 to 900 knots (inclusive) and an airspeed trend vector are displayed on both PFDs.
The airspeed tape will display a range of ± 40 knots from current airspeed. The tape is labeled every
10 knots below 200 knots and every 20 knots above 200 knots. A VMO thermometer will appear for an overspeed condition and a low speed thermometer will appear for a low speed condition. When IAS equals or exceeds VMO or less than calculated stall warning speed, the digits turn red.
GF1110_015
Airspeed Trend Vector
Airspeed trend vector represents the airspeed the airplane will attain in 10 seconds, if current acceleration is maintained. Maximum movement of the vector is 30 knots from current airspeed.
When the vector exceeds VMO or less than calculated stall speed, by 1 knot, the digits turn amber.
Selected Airspeed Reference Display
Selected airspeed is always displayed. The readout can be displayed in knots (1 knot increments) or Mach (0.01 Mach increments). Pushing the SPD PUSH CHG button inner knob will toggle the speed reference from IAS to MACH or vice versa.
The Electronic Display System (EDS) automatically switch the speed reference from IAS to MACH at the altitude of 32,600 ft. when climbing. If MACH is switched back to IAS after climbing above 32,600 ft., the manual speed will remain the last selected. The EDS will also switch the speed reference from MACH to IAS at the altitude of less than 32,400 ft. when descending. If IAS is switched back to MACH after descending below 32,400 ft., the manual speed will remain the last selected.
Rotating the SPD PUSH CHG button outer knob sets IAS. The readout reflects the position of the IAS/MACH target bug on both PFDs. MACH is displayed at ≥ .450 M and is removed when ≤ .400 M.
Rev 5, Jul 21, 2005 Flight Crew Operating Manual Volume 2
FLIGHT INSTRUMENTS
Airspeed Reference Bug
The active speed bug is always the bucket shaped bug on the inside of the airspeed tape. The standby speed bug (i.e. FMS if the active mode is MAN or MAN if the active mode is FMS) is always the triangle shaped bug on the outside of the speed bug. An airspeed reference bug is cyan when the source of that bug’s speed is the MAN speed knob and magenta when the source if the bug’s speed is the FMS. The value of the non-active speed bug can be changed by normal operation of the source of the speed command (SPD knob in MAN or FMS programming in FMS).
Selected Airspeed Digital Readout Selected Mach
Reference Display
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