Aspen Avionics Evolution EFD1000 PFD - Page 87

EFD1000 PFD Pilot’s Guide
CHAPTER 4, REFERENCE GUIDE
EFD1000 PFD Pilot’s Guide
EFD1000 PFD Pilot’s Guide Page 4-5A-01-184-00 REV B
Indicated airspeed is displayed in knots or miles per hour, set at installation, with tick
marks rendered on the Airspeed tape every ten (10) units. Speed Bands and Speed
Markers are congured during installation and cannot be changed or removed by
the pilot. The textual V-speeds are pilot-congurable, and are discussed in Chapter 5,
Customizing the PFD. 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 V
s
0 during stalls or landing roll-outs (Figure 4-6).
Figure 4-6
Actual Airspeed Greater
Than the Vne