Section 3 Display Symbology
3-16
IDU-450 EFIS Software Version 8.0H (Rotorcraft)
1
st
Ed Nov 2018
The PFD has large aircraft symbol reference marks fixed in the center of
the display. Rotation of the background, pitch scale, and background
oriented display elements occur relative to the location of the waterline
symbol or large aircraft reference marks.
Pitch scale has increments every 5° with major increments and pitch scale
labels every 10°. Increments are equally spaced to conform approximately
to the 3-D PFD background. Pointer bars at the ends of each major
increment indicate direction to the horizon and automatically declutter to
present the fewest possible increments needed to unambiguously display
pitch attitude. The pitch scale terminates with a zenith symbol (small white
circle) at +90° and a nadir symbol (small white circle with “+”) at -90°.
Figure 3-32: Pitch Scale Zenith and Nadir Symbols
3.3.10. Turn Rate Indicator
Figure 3-33: Turn Rate Indicator
3.3.11. Landing Gear Indication
If configured, the PFD displays landing gear position as small “tires” below
large aircraft symbol reference marks.
Basic Mode
Normal Mode
Figure 3-34: Landing Gear Indication
Zenith
symbol
Nadir
symbol
Full standard rate
Half standard rate