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Patterns are typically rectangular in basic shape, and include the runway along one long side of the rectangle. Each leg of the pattern has a particular name: [3] Upwind leg. A flight path parallel to and in the direction of the landing runway. It is offset from the runway and opposite the downwind leg. Crosswind leg. A short climbing flight ...
It is recommended to name the SVG file “Upwind downwind example.svg”—then the template Vector version available (or Vva) does not need the new image name parameter. Licensing Public domain Public domain false false
Tunahawk is correct. In the US, "upwind leg" properly is *not* an alternative term for departure or climb out because it is in-line with the runway and below TPA. Strictly speaking, Departure is no more upwind than is final. Upwind is the opposite of downwind, both of which are at or near TPA and parallel to but offset from the runway.
This image is a derivative work of the following images: File:Airport Traffic Pattern with Upwind Leg.jpg licensed with PD-USGov . 2009-12-16T15:07:30Z BendrixL 243x144 (9002 Bytes) {{Information |Description=Aiport Traffic Pattern with Upwind Leg |Source=FAA AIM 4-3-2 |Date=December 2009 |Author=FAA |Permission=Federal Govt Document |other_versions= }}
Windward is upwind from the point of reference, i.e., towards the direction from which the wind is coming; leeward is downwind from the point of reference, i.e., along the direction towards which the wind is going. The side of a ship that is towards the leeward is its "lee side".
On very slippery runways, landing the airplane using crab only reduces drift towards the downwind side of a touchdown, and may reduce pilot workload since the airplane does not have to be de-crabbed before touchdown. However, proper rudder and upwind aileron must be applied after touchdown to ensure directional control is maintained.
With other traffic present in the circuit, the aircraft might be positioned downwind in the circuit behind or between other traffic in order to land in turn. Alternatives to the overhead join are to directly join the circuit by entering at a suitable corner, or a straight-in approach.
During takeoff and landing, an aircraft's wake sinks toward the ground and moves laterally away from the runway when the wind is calm. A three-to-five-knot (3–6 mph; 6–9 km/h) crosswind will tend to keep the upwind side of the wake in the runway area and may cause the downwind side to drift toward another runway. Since the wingtip vortices ...