Dual Mode DME An.airborne.DMERT.capable.of.processing.. DME/N.and.DME/P.ground.station.signals..
Operation is in the L-band frequency range.
DUAT  Direct.User.Access.Terminal
Duplex  A.communication.operation.that.uses.the. simultaneous.operation.of.the.transmit.and.
receive equipment at two locations.
DVF Demonstration.and.Validation.Facility DVI Digital.Visual.Interface DVM Digital.Voltmeter DWAN Direct.WAN DX Distance Dynamic Dynamic.Pressure.is.the.difference.between.pitot.
Pressure  and.static.pressure.
Dynamic RAM  RAM.constructed.of.capacitor.elements..Memory. cells.must.be.periodically.refreshed.to.keep. capacitors.from.discharging.and.losing.data... (See.“Static.RAM”).
E  (.1.).East..
(.2.).Elevator
EAA  Experimental.Aircraft.Association
EADI  Electronic.Attitude.Director.Indicator

EAFR Enhanced.Airborne.Flight.Recorder EAI Engine.Anti-Ice EAP Engine.Alert.Processor EAROM Electrically Alterable ROM EARS Engineering.Activity.Reporting.System EARTS En.route.Automated.Radar.Tracking.System EAS Equivalent Airspeed EASA Europeon.Aviation.Safety.Agency EASIE Enhanced.ATM.and.Mode.S.Implementation.in.
Europe
EATCHIP  European Air Traffic Control Harmonization and
Integration.Programme
EATMS  European Air Traffic Management Systems
EBACE  European.Business.Aviation.Convention.and.
Exhibition
EC  Event.Criterion
ECAC  European.Civil.Aviation.Conference
ECAM  Electronic.Caution.Alert.Module
ECARS  Enhanced.ACARS
ECEF  Earth-Centered,.Earth-Fixed
Echo  The portion of the radiated energy reflected back
to.the.antenna.from.the.target.(WXR).
ECL  Electronic.Checklist
ECM  Electronic.Control.Module
ECMP  Electronic.Component.Management.System
ECON  Economy.(minimum.cost.speed.schedule)
ECP  EICAS.Control.Panel
ECS  (.1.).Engineering.Compiler.System..An.automated. data.storage.system... (.2.).Environmental.Control.System..
( 3 ) Event Criterion Subfield
ECSL Left.Environmental.Control.System.Card ECSMC ECS.Miscellaneous.Card

ECSR Right.Environmental.Control.System.Card ECU (.1.).EICAS.Control.Unit.. (.2.).Electronic.Control.Unit..
(.3.).External.Compensation.Unit ED EICAS.Display E/D End-of-Descent EDA Electronic.Design.Automation EDAC Error.Detection.and.Correction.(used.
interchangeably.with.EDC) EDC Error.Detection.and.Correction EDDS Electronic.Document.Distribution.Service EDFCS Electronic.Digital.Flight.Control.System EDI Engine.Data.Interface EDIF Engine.Data.Interface.Function EDIU Engine.Data.Interface.Unit EDMS Electronic.Data.Management.System EDP (.1.).Electronic.Data.Processing..