CHAPTER 4 REFERENCE GUIDE
EFD1000 PRO MAX PFD Pilot’s Guide
Page 4-7
091-00005-002 ()
Indicated airspeed is displayed in knots, miles per hour or Mach number, set at
installation, with tick marks rendered on the Airspeed tape every ten (10) units. Speed
Bands and Speed Markers are configured during installation and cannot be changed or
removed by the pilot. The textual Vspeeds are pilot-configurable. Although the pilot can
set the selected airspeed (bug), there is no visual or aural annunciation provided when
the actual airspeed deviates from the selected airspeed value.
The numerical airspeed value is displayed in a rolling drum format in the center of the
airspeed tape with numbers moving downward as speed increases, and upward as
speed decreases. The display range of the indicated airspeed is 20–450 (knots or miles
per hour). The numerical airspeed value is displayed in red when Vne is exceeded or
when the airspeed drops below Vso during stalls or landing roll-outs (Figure 4-11).
4.2.1 Speed Bands & Textual VSpeeds
Speed Bands and Textual Vspeed markers are shown on the airspeed tape (e.g., Vne, Vx,
Vy, Va, etc.). These are typically programmed at installation, or (if left unlocked during
installation) may also be adjusted/enabled/disabled by the pilot.
When using the Vspeed textual markers, the pilot must first ENABLE the display of
the markers and then set values for each Vspeed. The value range for Vspeed textual
markers is 0 – 450. The default setting is 0 unless previously set to another value. When
the value is 0, the Vspeed is disabled, and the marker is not shown on the Airspeed Tape.
Once the values are set, the pilot can choose to disable all the Vspeed textual markers
to declutter the Airspeed TapeVspeed are listed in Table 4-1.
Figure 4-11
Actual Airspeed Greater Than the Vne
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