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Terms for subject Aviation (1801 entries)

intersecting runways	Two or more runways that cross or meet within their lengths
intersection	As the circumstances require, this may be (a) a point on the surface of the earth over which two or more position lines intersect. The position lines may be true bearings from non-directional beacons (NDB) radials from VHF/UHF NAVAIDs; centrelines of airways, fixed RNAV routes or air routes; localizers; or DME distances; or (b) the point where two runways, a runway and a taxiway, or two taxiways cross or meet.
intersection departure	A departure on a runway from an intersection
IR	"I say again" An expression used in radiocommunication meaning "I repeat for clarity or emphasis."
IR flare	infrared flare
itinerant aircraft	An aircraft that (a) is proceeding to or arriving from another location; or (b) leaves the aerodrome traffic circuit but will be returning to land
J	The letter used on aeronautical charts to indicate a high level airway (e.g. J500)
James Brake Index	An index that is used at Canadian military aerodromes to report the runway coefficient of friction. It is determined via a vehicle-mounted decelerometer with a scale that is graduated in increments from 0 to 1. Small numbers represent low braking coefficients of friction while numbers on the order of 0.8 and above indicate the braking coefficients to be expected on bare and dry runways. JBI charts may be found in the Military Flight Data and Procedures section of the Canada Flight Supplement (CFS)
jamming	Electronic or mechanical interference that may disrupt the display of aircraft on radar or the transmission or reception of radio communication or radio navigation signals
jet blast	Jet-engine exhaust
jet route	In controlled high level airspace (HLA) a prescribed track between specified fixes
jet stream	Flat tubular, quasi-horizontal, current of air generally near the tropopause, whose axis is along a line of maximum speed and which is characterized by great speeds and strong vertical and horizontal wind shears
Jet Zero Strategy	План правительства Великобритании о переводе авиатехники на использование топлива с нулевыми выбросами диоксида углерода	amorge­n
jetn	jettison
jettisoning of external stores	The airborne release of external stores, e.g. tip tanks, ordnance.
jinkout maneuver	Unpredictable maneuvers to negate a gun tracking solution
Joint Air Attack Team (Coordinated employment of attack helicopters and fighters employed against enemy ground vehicles and personnel)	JAAT
Joint Maritime Operations (AIR)	JMOAIR
joint rescue coordination centre	A unit responsible for promoting efficient organization of both aeronautical and maritime search and rescue services and for coordinating the conduct of both aeronautical and maritime search and rescue operations, within a search and rescue region
joint use restricted area	Class F airspace of defined dimensions above the land areas or territorial waters within which the flight of aircraft is restricted in accordance with certain specified conditions