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航空略缩语 Aviation Glossary(11)

时间:2011-09-15 17:20来源:蓝天飞行翻译 作者:航空 点击:


CVR cockpit voice recorder. A tape recorder installed on the flight decks of commercial transport aircraft and helicopters and some business aeroplanes to record crew conversation, RT transmissions and cockpit background noises (e.g. trim-wheel operation, flap motor running) in case required for incident or accident investigation.
CW carrier wave or continuous wave.
CWR colour weather radar
CZ Control Zone (USA)
CZI compressor zone inspection

 
 
 
DA Danger Area
DAAIS Danger Area Activity Information Service
DACS Danger Area Crossing Service
DADC Digital air data computer (DADS - /system)
D & D Distress & Diversion Cells at Air Traffic Control Centres. RAF units which provide a 24-hour listening watch on VHF and UHF emergency frequencies and can locate and assist pilots who are lost or in emergency situations.
dB decibel(s) - a unit of sound
DC direct current
DCT direct
dead side opposite side of an airfield circuit pattern from which aircraft join for landing
deadstick descent and landing with engine(s) shut down and propeller(s) stopped.
Decca hyperbolic area navigation system, originally developed for maritime use, based on signals received from a chain of master and slave ground stations located in northern Europe.
DEEC digital electronic engine control
density altitude pressure altitude corrected for air temperature.
derated engine's potential power deliberately limited, lengthening likely life.
DETRESFA distress phase of search-and-rescue operation.
DF direction-finding. A DF bearing can be provided by airfields or other facilities such as D & D cells (above) having suitable direction-finding equipment to locate an aircraft.
DG Directional gyro
DGAC Direction Général à l'Aviation Civile
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