CHAPTER 4 REFERENCE GUIDE
Page 4-18
091-00027-001 REV A Evolution Backup Display Pilot’s Guide
Page 4-19
091-00027-001 REV A
Figure 4-36
Data Bar
NOTE
If the OAT was set to disabled during installation, as
would be the case if the RSM is mounted internally
to the aircraft structure, then the OAT, TAS, and Wind
Speed and Direction are not displayed.
4.3. Data Bar
The Data Bar presents True Airspeed (TAS) or the Mach number, GPS Ground Speed (GS),
Outside Air Temperature (OAT), Wind Direction, Wind Speed, and Barometric Pressure
Setting, as shown in Figure 4-36. The Data Bar is always present on the display. Invalid
or out-of-range Data Bar values are dashed.
True Airspeed (TAS) Wind Direction Arrow
Barometric Pressure Setting
Field
Outside Air Temperature (OAT)
Wind Speed Ground Speed (GS)
Wind Direction
4.3.1. True Airspeed
The True Airspeed (TAS) is displayed in the upper left of the Data Bar. The TAS has a
range of 20–999 knots or mph, using the same unit of measurement as the aircraft’s
Airspeed Indicator. The TAS is a correction of the IAS for nonstandard pressure and
temperature.
091-00027-001 Rev A EBD Pilots Guide V&H .indb 19 8/27/14 8:51 AM
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