CHAPTER 4, REFERENCE GUIDE
EFD1000 PFD Pilot’s Guide
Page 4-44 A-01-184-00 REV B
EFD1000 PFD Pilot’s Guide
EFD1000 PFD Pilot’s Guide
The VSI tape is nonlinear, giving more display area to the 0 to ± 1,000 FPM range than
to the ±1,000 to ±2,000 FPM range. Tick marks are presented only in the direction of the
climb or descent to provide visual cues for trends. The VSI numerical value, tape, and
scale markers are only shown if the aircraft is climbing or descending more than ±100
FPM. During level ight in calm air conditions, the tape, scale, scale markers, and zero
reference line are removed from the display. The numerical value eld is always enabled
and shows dashes when vertical rates are out of range. If vertical speed is invalid,
the tape and digital display are replaced with a red “X”, and the annunciation, VSI FAIL
(Figure 4-99).
Figure 4 -99
Vertical Speed Indicator Fail – Direction
Indicator 360° Compass Mode
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