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Terms for subject Aviation (1835 entries)

contact approach	An approach wherein an aircraft on an IFR flight plan (FP) having an ATC authorization and operating clear of clouds with at least 1 mi. flight visibility and a reasonable expectation of continuing to the destination airport in those conditions, may deviate from the instrument approach procedure (IAP) and proceed to the destination airport by visual reference to the surface of the earth.
contact point	A specified position, time or level at which an aircraft is required to establish radio communication with an ATC unit
continuous descent final approach	A technique, consistent with stabilized approach procedures, for flying the final approach segment of a non-precision instrument approach procedure as a continuous descent, without level-off, from an altitude/height at or above the FAF altitude/height to a point approximately 15 m (50 ft) above the landing runway threshold or the point where the flare manoeuvre should begin for the type of aircraft flown
Continuously Computed Impact Point (The HUD designation for air-to-ground bombing mode using Mk84 bombs)	CCIP
Control and Reporting	CR
control area	A controlled airspace extending upwards vertically from a specified height above the surface of the earth
control area extension	A controlled airspace of defined dimensions within the low level airspace (LLA) extending upwards from 2200 ft AGL unless otherwise specified
Control of Revolutionary Aircraft with Novel Effectors	CRANE	Michae­lBurov
control sector	A subdivision of a designated control area within which responsibility is assigned to one controller or to a small group of controllers
control tower	A unit established to provide ATC service to aerodrome traffic
control zone	A controlled airspace of defined dimensions extending upwards from the surface of the earth up to and including 3000 ft AAE unless otherwise specified
controlled aerodrome	An aerodrome at which an ATC unit is in operation
controlled airspace	An airspace of defined dimensions within which ATC service is provided
controlled flight into terrain	An occurrence in which an aircraft, under the control of the crew, is flown into terrain, water or an obstacle with no prior awareness on the part of the crew of the impending disaster
controlled VFR flight	A flight conducted under VFR within Class B airspace and in accordance with an ATC clearance
controller	A person holding a valid licence to control air traffic
controlling agency	The ATC unit that normally exercises ATC or provides advisory service in a given airspace
convective SIGMET	A weather advisory concerning convective weather significant to the safety of all aircraft. Convective SIGMETs are issued for tornadoes, lines of thunderstorms, embedded thunderstorms of any intensity level, areas of thunderstorms greater than or equal to VIP level 4 with an area coverage of 4/10 (40%) or more, and hail 3/4 in. or greater.
converging runway display aid	A radar software that permits the sequencing and spacing of aircraft by terminal controllers
Coordinated Universal Time	The time system used in aviation operations and given to the nearest minute, except when the pilot requests a time check. Time checks are given to the nearest 15 s. The day begins at 0000 and ends at 2359. • written abbreviation: Z or UTC • spoken expression: zulu or universal