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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) is a standard path for coordinating air traffic. It differs from "straight-in approaches" and "direct climb-outs" in that an aircraft using a traffic pattern ...
Pittsburgh International Airport (IATA: PIT, ICAO: KPIT, FAA LID: PIT) — originally Greater Pittsburgh Airport and later Greater Pittsburgh International Airport — is a civil-military international airport in Findlay Township and Moon Township, Pennsylvania, United States. About 10 miles (15 km) west of downtown Pittsburgh, it is the ...
The term arises from the traditional use of traffic patterns at airfields.A landing aircraft will first join the traffic pattern/circuit and prepare for landing. If for some reason, the pilot decides not to land, the pilot can simply fly back up to traffic pattern altitude/circuit height, and complete another circuit.
Each leg is named (see diagram), and ATC directs pilots on how to join and leave the circuit. Traffic patterns are flown at one specific altitude, usually 800 or 1,000 ft (244 or 305 m) above ground level (AGL). Standard traffic patterns are left-handed, meaning all turns are made to the left. One of the main reason for this is that pilots sit ...
Traffic pattern altitude is 6,800' mean sea level. Right hand traffic patterns for runways 22 and 35. For the 12-month period ending December 31, 2018, the airport had 78,860 aircraft operations, an average of 216 per day: 97% general aviation , 2% air taxi and 2% military.
An airport surveillance radar (ASR) is a radar system used at airports to detect and display the presence and position of aircraft in the terminal area, the airspace around airports. It is the main air traffic control system for the airspace around airports. At large airports it typically controls traffic within a radius of 60 miles (96 km) of ...
Stacks are sections of airspace where inbound aircraft will normally use the pattern closest to their arrival route. They can be visualised as an invisible helix in the sky. Each stack descends in 1,000 feet (305 m) intervals from 16,000 feet (4,877 m) down to 8,000 feet (2,438 m). If these holds become full, aircraft are held at more distant ...
In aviation, a terminal control area (TMA, or TCA in the U.S. and Canada), [1][2][3] is a designated area of controlled airspace surrounding a major airport where there is a high volume of traffic. TMA airspace is normally designed in a circular configuration centered on the airport, and differs from a control area in that it includes several ...