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  2. Airborne wind shear detection and alert system - Wikipedia

    en.wikipedia.org/wiki/Airborne_wind_shear...

    The airborne wind shear detection and alert system, fitted in an aircraft, detects and alerts the pilot both visually and aurally of a wind shear condition. A reactive wind shear detection system is activated by the aircraft flying into an area with a wind shear condition of sufficient force to pose a hazard to the aircraft. A predictive wind ...

  3. Wind shear - Wikipedia

    en.wikipedia.org/wiki/Wind_shear

    Thermal wind is a meteorological term not referring to an actual wind, but a difference in the geostrophic wind between two pressure levels p 1 and p 0, with p 1 < p 0; in essence, wind shear. It is only present in an atmosphere with horizontal changes in temperature (or in an ocean with horizontal gradients of density ), i.e., baroclinicity .

  4. ARINC 653 - Wikipedia

    en.wikipedia.org/wiki/ARINC_653

    ARINC 653 (Avionics Application Software Standard Interface) is a software specification for space and time partitioning in safety-critical avionics real-time operating systems (RTOS).

  5. Downburst - Wikipedia

    en.wikipedia.org/wiki/Downburst

    Several fatal and historic crashes in past decades are attributed to the phenomenon and flight crew training goes to great lengths on how to properly recognize and recover from a downburst/wind shear event; wind shear recovery, among other adverse weather events, are standard topics across the world in flight simulator training that flight ...

  6. Launch commit criteria - Wikipedia

    en.wikipedia.org/wiki/Launch_commit_criteria

    sustained wind at the 162 feet (49 m) level of the launch pad in excess of 30 knots (56 km/h; 35 mph), upper-level conditions containing wind shear [quantify] that could lead to control problems for the launch vehicle, launch through a cloud layer greater than 4,500 feet (1,400 m) thick that extends into freezing temperatures,

  7. Ellrod index - Wikipedia

    en.wikipedia.org/wiki/Ellrod_index

    In meteorology the Ellrod index is a technique for forecasting clear-air turbulence (CAT). It is calculated based on the product of horizontal deformation and vertical wind shear derived from numerical model forecast winds aloft.

  8. Wind gradient - Wikipedia

    en.wikipedia.org/wiki/Wind_gradient

    In common usage, wind gradient, more specifically wind speed gradient [1] or wind velocity gradient, [2] or alternatively shear wind, [3] is the vertical component of the gradient of the mean horizontal wind speed in the lower atmosphere. [4] It is the rate of increase of wind strength with unit increase in height above ground level.

  9. IEC 61400 - Wikipedia

    en.wikipedia.org/wiki/IEC_61400

    The extreme wind speeds are based on the 3 second average wind speed. Turbulence is measured at 15 m/s wind speed. This is the definition in IEC 61400-1 edition 2.