traffic pattern

traffic pattern
The regulated movement of air traffic that must fly along an established route when approaching or leaving an airport. Airplanes fly very precise rectangular patterns around an airport prior to landing. Each side of the rectangle has a name. The leg flown at right angles to the runway immediately after takeoff is the crosswind leg. The leg flown parallel to the runway and opposite to the direction of landing is the downwind leg. The base leg, as it is known, is flown at right angles to the runway, just before turning to the final direction for landing. Flight in the direction of landing but maintaining altitude is called an upwind leg. Traffic patterns may be flown with either right-hand or left-hand turns.

Aviation dictionary. 2014.

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Look at other dictionaries:

  • traffic pattern — ☆ traffic pattern n. a pattern of flight in the air above or around an airport normally followed by aircraft before landing or after taking off …   English World dictionary

  • traffic pattern — The traffic flow that is prescribed for aircraft landing at, taxiing on, and taking off from an airport. The usual components of a traffic pattern are upwind leg, crosswind leg, downwind leg, base leg, and final approach …   Military dictionary

  • traffic pattern — 1. Aeron. a system of courses about an airfield that aircraft are assigned to fly when taking off, landing, or preparing to land. 2. any systematic movement of people or vehicles: The kitchen was designed to accommodate the family s traffic… …   Universalium

  • traffic pattern — noun the path that is prescribed for an airplane that is preparing to land at an airport the traffic patterns around O Hare are very crowded they stayed in the pattern until the fog lifted • Syn: ↑approach pattern, ↑pattern • Derivationally… …   Useful english dictionary

  • Airfield traffic pattern — An airfield traffic pattern is a standard path followed by aircraft when taking off or landing, while maintaining visual contact with the airfield. At an airport, the pattern (or circuit in the Commonwealth) is a standard path for coordinating… …   Wikipedia

  • Pattern — Pat tern, n. [OE. patron, F. patron, a patron, also, a pattern. See {Patron}.] 1. Anything proposed for imitation; an archetype; an exemplar; that which is to be, or is worthy to be, copied or imitated; as, a pattern of a machine. [1913 Webster]… …   The Collaborative International Dictionary of English

  • pattern box — Pattern Pat tern, n. [OE. patron, F. patron, a patron, also, a pattern. See {Patron}.] 1. Anything proposed for imitation; an archetype; an exemplar; that which is to be, or is worthy to be, copied or imitated; as, a pattern of a machine. [1913… …   The Collaborative International Dictionary of English

  • Pattern card — Pattern Pat tern, n. [OE. patron, F. patron, a patron, also, a pattern. See {Patron}.] 1. Anything proposed for imitation; an archetype; an exemplar; that which is to be, or is worthy to be, copied or imitated; as, a pattern of a machine. [1913… …   The Collaborative International Dictionary of English

  • pattern chain — Pattern Pat tern, n. [OE. patron, F. patron, a patron, also, a pattern. See {Patron}.] 1. Anything proposed for imitation; an archetype; an exemplar; that which is to be, or is worthy to be, copied or imitated; as, a pattern of a machine. [1913… …   The Collaborative International Dictionary of English

  • pattern cylinder — Pattern Pat tern, n. [OE. patron, F. patron, a patron, also, a pattern. See {Patron}.] 1. Anything proposed for imitation; an archetype; an exemplar; that which is to be, or is worthy to be, copied or imitated; as, a pattern of a machine. [1913… …   The Collaborative International Dictionary of English

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