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Terms for subject Aviation (1801 entries)

chattermark	Begin using briefed radio procedures to counter comm jamming
check angels /fuel	An information statement made by GCI to aircrew ng ACBT
check left/right	By GCI: Alter course degrees left or right momentarily for airborne search positioning, then resume original heading
cherub	Altitude under 1,000 feet, measured in hundreds of feet	Natali­a D
circling minimums	The minimum descent altitude (MDA) and visibility required for the circling procedure
circuit	A communication system that includes all the direct system channels between two points
circuit	The specified path to be flown by aircraft operating in the vicinity of an aerodrome
CIRVIS	A plan developed for the reporting of vital intelligence sightings to extend the early-warning coverage of the North American continent
civil operations	civ operations	Michae­lBurov
civil operations	civ operations	Michae­lBurov
ckpt	cockpit
CL max	Maximum Coefficient of Lift
clear air turbulence	Turbulence encountered in air where no clouds are present. This expression is commonly applied to high- level turbulence associated with wind shear (WS) CAT is often encountered in the vicinity of the jet stream.
clearance	An authorization issued by an ATC unit for an aircraft to proceed within controlled airspace in accordance with the conditions specified by that unit
clearance limit	The point to which an aircraft is granted an ATC clearance
cleared dry	Ordnance release not authorized
cleared hot	Ordnance release is authorized
climb	The portion of flight operation between takeoff and the initial cruising altitude
climb-out	The portion of flight operation between takeoff and the initial cruising altitude
clutter	In radar operations, the reception and visual display of radar echoes caused by precipitation, chaff, terrain, numerous aircraft, or other phenomena. Such echoes may limit or preclude ATC from providing services based on radar.