EFD1000 Installation Manual
DOCUMENT # A-01-126-00 PAGE 181-225 Revision H
© Copyright 2009 Aspen Avionics Inc.
12.9.5 Rate of Turn Indicator
A rate of turn indicator with a range of 0 to 6 degrees per second is provided on both
the 360 and ARC Compass modes. The indicator consists of a curved white tape
originating from the heading index mark and extending in the direction of the turn along
the outer curve of the compass card.
Half Standard Turn Markin
Full Standard Turn Markin
Figure 12.17 – Rate of Turn
The rate of turn indicator features scale marks for standard and half standard rate turns
(“Standard” rate of turn = 3 degrees per second). When the rate of turn exceeds 4.5
degrees per second, an arrowhead is added to the end of the tape to show that the rate
of turn has exceeded the limits of the instrument.
12.9.6 Data Bar (TAS, GS, OAT, Winds, Barometric pressure Set)
The Data Bar visually separates the upper and lower halves of the EFD display. True
Airspeed (TAS), GPS Ground Speed (GS), Outside Air Temperature (OAT), Wind Direction,
Wind Speed, and Barometric Pressure Setting data are all presented in the data bar.
Figure 12.18 – Data Bar
12.9.7 Horizontal Situation Indicator
The traditional HSI is an instrument which combines a Direction Indicator overlaid with a
rotating Course Deviation Indicator (CDI). The HSI on the EFD1000 can be presented in
either a full 360 degree compass rose mode, or in a 100 deg ARC format. Within the
ARC mode, the pilot may select (via the main menu) between two different formats of
CDI presentation – ARC HSI mode and ARC CDI mode.
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