EFD1000 PFD Pilot’s Guide
CHAPTER 2, CONTROLS AND DISPLAY
EFD1000 PFD Pilot’s Guide
EFD1000 PFD Pilot’s Guide Page 2-23A-01-184-00 REV B
2.3.1.2. Airspeed Tape and Bug
Airspeed is indicated by a moving airspeed tape against a xed position airspeed
pointer, shown on the left-hand side of the Attitude Display (Figure 2-30). A digital,
rolling drum readout indicating airspeed values to the closest one knot or mile per
hour is provided adjacent to the xed pointer. Tick marks are provided on the airspeed
tape every 10 knots (or mph, if so congured). Airspeeds will be displayed between
20 kts (23mph) to 450 kts (518mph). Outside of this range the airspeed value is dashed.
Color speed bands are displayed on the indicated airspeed tape, corresponding to the
colored arcs found on a traditional airspeed instrument.
Color speed markers are displayed on the indicated airspeed tape, corresponding to
the colored radial lines found on traditional airspeed instruments. All aircraft have a red
line for aircraft never-exceed speed (Vne). Multi-engine aircraft will usually also have
a lower red line for single-engine minimum control speed (Vmc), and a blue line for
single-engine best rate of climb speed (Vyse). If the aircraft manufacturer has published
an initial ap extension speed, a white triangle will be presented on the airspeed tape at
the speed corresponding to this limitation.
Textual V-speed markers can also be shown on the airspeed tape (e.g., Vx, Vy, Va, etc.).
These are typically programmed at installation, and (if left unlocked during installation)
may also be programmed by the pilot. V-speed display can be enabled or disabled by
the pilot from Page 1 of the Main Menu (see Chapter 5).
The pilot can set a target airspeed using the left-hand control knob (see
Section 4.1.2.1). The target airspeed is shown on the Airspeed Tape in the form of
an Airspeed Bug (Figure 2-2, No. 32), and will also be displayed numerically above
the Airspeed Tape (Figure 2-2, No. 31). The bug and numerical value are for visual
reference only, to help the pilot maintain a target airspeed; there is no alerting for
deviations from the target.
Figure 2-30
Airspeed Tape
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