day Canada (CARs): Other expression for: daylight
daylight The period of time during any day that begins with the morning civil twilight and ends with the evening civil twilight. Fr: lumière du jour
DCPC Abbreviation for: direct controller-pilot communications Fr: DCPC
dead reckoning navigation The estimating or determining of position by advancing an earlier known position by the application of direction, time and speed data.
. abbreviation: DR
Fr: navigation à l’estime
decision altitude A specified altitude in the precision approach or approach with vertical guidance at which a missed approach must be initiated if the required visual reference to continue the approach to land has not been established.
.
abbreviation: DA
.
see also: decision height (DH)
Note: Decision altitude (DA) is referenced to mean sea level (MSL) and decision height (DH) is
referenced to the threshold elevation.
Fr: altitude de décision
decision height A specified height in the precision approach or approach with vertical guidance at which a missed approach must be initiated if the required visual reference to continue the approach to land has not been established.
.
abbreviation: DH
.
see also: decision altitude (DA)
Note: Decision height (DH) is referenced to the threshold elevation and decision altitude (DA) is
referenced to mean sea level (MSL).
Fr: hauteur de décision
defence visual flight rules
Rules applicable to flights within an air defence identification zone (ADIZ) conducted under VFR.
. abbreviation: DVFR
Fr: règles de vol à vue de la défense
Department of National Defence
Canada: The federal authority responsible for military aviation.
. abbreviation: DND
Fr: ministère de la Défense nationale
departure control A function of an approach control facility providing ATC service for departing IFR and, under certain conditions, VFR aircraft. Fr: contr.le des départs
departure controller
A duty controller assigned to a departure control position.
Fr: contr.leur des départs
departure time
The time an aircraft becomes airborne.
. also called: take-off time
Fr: heure de départ
designated unit A unit that serves as a communications link into the NAV CANADA system for the dissemination of information and that monitors or supports the day-to-day operation of a community aerodrome radio station (CARS). The designated unit may have one or more CARS reporting to it. Fr: unité désignée
destination alternate aerodrome An alternate aerodrome specified in the flight plan (FP) to which an aircraft may proceed should it become either impossible or inadvisable to land at the aerodrome of intended landing.
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飛行員與空管人員詞匯詞典 GLOSSARY FOR PILOTS AND ATC
