CAT III a Operational performance Category III a. An ILS facili-ty providing operation with no decision height limit to and along the surface of the runway with external visual reference during final phase of landing and with a runway visual range of not less than 200 meters (700 feet).
CAT III b Operational performance Category III b. An ILS facili-ty providing operation with no decision height limit to and along the surface of the runway without reliance on external visual reference;and subsequent-ly taxiing with external visual range of not less than 50 meters (150 feet).
CAT III c Operational performance Category III c. An ILS facili-ty providing operation with no decision height limit to and along the surface of the runway and taxiways without reliance on external visual reference.
CBA Cost Benefit Analysis
C-BAND The frequency range between 4000 and 8000 MHz.
CCB (1) Converter Circuit Breaker (2) Configuration Control Board
CCD (1) Cursor Control Device (2) Charged Coupled Device
CCIR International Radio Consultative Committee
CCITT International Telegraph and Telephone Consultative
CCW Counterclockwise
CD Chrominance Difference
CDG Configuration Database Generator
CDI Course Deviation Indicator
CDP Continuous Data Program
CDR Critical Design Review
CDTI Cockpit Display of Traffic Information
CDU Control Display Unit
CEPT Conference Europeene des Postes et Telecommunications
CF Change Field
CFDIU Central Fault Display Interface Unit
CFDS Centralized Fault Display System
CFIT Controlled Flight Into Terrain
CFMU Central Flow Management Unit
CFS Cabin File Server
CHG Charge
CHI Computer Human Interface
CHIS Center Hydraulic Isolation System
CHOL Collins High Order Language
CI (1) Configuration Item
(2) Cabin Interphone
CIDIN Common ICAO Data Interchange Network
CIDS Cabin Interphone Distribution System
CIE Commission Internationale de I Eclairage
CIP Capital Investment Plan
CLB Climb
CLK Clock
Cloud Water or ice particles having radii smaller than 0.01
Droplets cm
CLR Clear
CMC Central Maintenance Computer
CMCF Central Maintenance Computer Function
CMCS Central Maintenance Computer System
CMD Command
CMM (1) Component Maintenance Manual
(2) Common Mode Monitor. A type of monitor com-
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