the Aviation Dictionary

DP - instrument departure
procedure
DPDT - double-pole,
double-throw
DPST - double-pole,
single-throw
DPU - data processor unit
DR - dead reckoning
DSCS - digital satellite
compression service
DSUA - dynamic special use
airspace
DTS - dedicated transmission
service
DUAT - Direct User Access
Terminal
DUATS - Direct User Access
Terminal System
DVA - diverse vector area
DVFR - day visual flight rules
DVFR - defense visual flight
rules
DVOR - doppler very high
frequency omni directional range
DVRCR - differential voltage
reverse current relay
DYSIM - dynamic simulator
EADI - electronic attitude
direction indicator
EARTS - Enroute Automated
Radar Tracking System
EAS - equivalent airspeed
EC - European Community.
ECCM - electronic countercountermeasures
ECM - electronic
countermeasures
ECOM - enroute
communications
ECU - engine control unit
ECU - electronic control unit
ECVFP - expanded charted
visual flight procedures
EDC - engine driven compressor
EDCT - expect departure
clearance time
EDP - engine driven pump
EDP - expedite departure path
EEC - electronic engine
computer
EEL -emergency
exit lights
EFAS - enroute flight advisory
service
EFC - expect hrther clearance
EFIS - electronic flight
information systems
EFIS - electronic flight
instrument (indication) system
EGT - exhaust gas temperature
EIAF - expanded inward access
features
EICAS - engine indication and
crew alerting system
EICAS - engine indication
central alert system
EIS - environmental impact
statement
ELT - emergency locator
transmitter
ELWRT - electrowriter
EMF - electromotive force
(voltage).
EMPS - enroute maintenance
processor system
EMSAW - Enroute Minimum
Safe Altitude Warning
ENAV - enroute navigational
aids
EOF - emergency operating
facility
EPA - Environmental Protection
Agency
EPC - external power container
EPE - estimate of position error
EPE - estimated position error
EPR - engine pressure ratio
EPROM - erasable
programmable read only
memory
EPS - engineered performance
standards
EPSS - enhanced packet
switched service
Aircraft Technical Book Company
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ERAD - enroute broadband
radar
ESEC - enroute broadband
secondary radar
ESF - extended superframe
format
ESFC - equivalent specific fuel
consumption
ESP - enroute spacing program
ESV - expanded service volume
ESYS - enroute equipment
systems
ETA - estimated time of arrival
ETD - estimated time of
departure
ETE - estimated time enroute
ETG - enhanced target generator
ETMS - enhanced traffic
management system
ETN - electronic
telecommunications network
EU - European Union
EVAS - enhanced vortex
advisory system
EVBC - engine variable bleed
control
EVC - engine vane control
EVCS - emergency voice
communications system
EWCG - empty weight center of
gravity
EWR - Newark International
Airport
F&E - facility and equipment
FIF - Fuel Flow.
FA - area forecast
FA - aviation area forecast
FAA - Federal Aviation
Administration
FAAAC - FAA Aeronautical
Center
FAAClS - FAA
Communications Information
System
FAA-PMA - Federal Aviation
Administration Parts
Manufacturing Approval