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Terms for subject Aviation (1801 entries)

loss of separation	An occurrence in which less than the authorized minimum existed or in which the minimum was not assured
low altitude alert system	An automated function of the TPX-42 that alerts the controller when a Mode C transponder- equipped aircraft on an IFR flight plan (FP) is below a predetermined minimum safe altitude. If requested by the pilot, LAAS monitoring is also available to VFR Mode C transponder-equipped aircraft.
low approach	An approach over an airport or runway following an instrument approach procedure (IAP) or VFR approach, including the overshoot manoeuvre, where the pilot intentionally does not make contact with the runway
Low Cost Carrier	LCC	Taerka­sten
low frequency	The frequency band between 30 and 300 kHz
low level air route	Within low level uncontrolled airspace, a route extending upwards from the surface of the earth and for which ATC service is not provided
low level airspace	All airspace within the Canadian Domestic Airspace (CDA) below 18 000 ft ASL
low level airway	Within controlled low level airspace, a route extending upwards from 2200 ft above the surface of the earth and for which ATC service is provided
low level autorotation	An autorotation manoeuvre that commences at an altitude well below the aerodrome traffic circuit and that is used primarily for tactical military training
low level fixed RNAV route	In low level airspace, a prescribed area navigation track between specified fixes. For routes in controlled low level airspace, the airspace extending upwards from 2200 ft above the surface of the earth within the following specified boundaries: (a) The primary route width is 10 mi. on each side of the centreline prescribed for such a route. (b) The primary route boundary lines do not splay.
low level tactical training route	A route used by the U.S. Department of Defense and Canadian DND units for the purpose of conducting low-altitude navigation and tactical training in both instrument meteorological conditions (IMC) and visual meteorological conditions (VMC) below 10 000 ft MSL at airspeeds in excess of 250 kt IAS.
Low Missile Engagement Zone (NATO)	LOMEZ
low yo-yo	A maneuver, executed from an offensive position, used to close on the target aircraft by the effective use of cutoff and acceleration
Low-Level Transit Route (NATO)	LLTR
low-visibility operations	Operations below RVR 1 200 (1/4 SM) visibility operations
low-visibility operations plan	A plan that calls for specific procedures established by the aerodrome operator and/or ATS when aerodrome visibility is below RVR 1 200 (% SM) operations plan
low-visibility procedures	Procedures specified for an airport in the Canada Air Pilot that restrict aircraft and vehicle operations on the movement area of the airport when the runway visual range (RVR) is less than 1 200 ft
lufberry	A circular stagnated fight with no participant having an advantage
Mach number	The ratio of the speed of an object to the local speed of sound
Mach number technique	The assignment by ATC of Mach number values to aircraft that are in level flight, climbing or descending, to ensure that longitudinal separation is maintained