EFD1000 PFD Pilot’s Guide
Page 7-8
091-00027-001 REV A
7.4. Glossary
ºC Degrees Celsius
ºF Degrees Fahrenheit
Accuracy Estimated position accuracy in feet or meters
A/D Analog to Digital
AC Alternating Current
ACU Analog Converter Unit
ADC Air Data Computer
ADI Attitude Director Indicator
AFMS Airplane Flight Manual Supplement
AGL Above Ground Level
AHRS Attitude Heading Reference System
AI Attitude Indicator
AIM Aeronautical Information Manual
AIRMET Airman’s Meteorological Information
Altitude Elevation above mean sea level
APPR Approach
APT Airport
ARC Partial Compass Rose, arc format (100°)
ARINC Aeronautical Radio, Inc.
ATC Air Trac Control
ATIS Automatic Terminal Information Service
AWOS Automated Weather Observation System
Back Course Localizer back course approach where the
signal on the back side of the localizer is used
for alignment to the runway opposite of normal
localizer alignment.
Battery Time The time remaining on the battery before it is
fully discharged.
BC Back Course
Bearing The compass direction from the current position
to the destination.
BP Bearing Pointer
Calibrated Airspeed Indicated airspeed corrected for installation and
instrument errors.
CDI Course Deviation Indicator
CFR Code of Federal Regulations
CM Conguration Module
Comm Communication radio
Course The route taken from the starting position to
destination.
Course to Steer The recommended direction to steer in order to
reduce cross-track error and return to the course
line.
Cross Track The perpendicular distance, left or right, away
from the selected course.
091-00027-001 Rev A EBD Pilots Guide V&H .indb 8 8/27/14 8:51 AM
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