Wind shear encounters below an altitude of 1,000 feet pose a serious threat to aircraft and may cause dangerous deviations from the intended flight path. The pilot has very little time or altitude to take evasive action. Leonardo’s low-level wind shear alert system (LLWAS) product is designed to enhance the safety, regularity and efficiency of aviation in changing wind conditions based on ground wind sensors. It combines the latest UCAR Phase-3 LLWAS technology and Leonardo system expertise to detect low-level wind shear along the runway corridor and issue timely warnings to ATC staff.

The University Corporation developed the Phase-3 LLWAS algorithm for Atmospheric Research (UCAR) for the FAA to detect low-level wind shear at US airports. Leonardo Germany was originally licensed in 2008.The technology nowadays serves more than 100 airports in the USA, Europe and Asia.

RainShear is Leonardo’s display software for LLWAS systems. Integration of wind data from LLWAS with complementary wind sensors such as weather radar, TDWR and LIDAR provides airports with a complete wind shear alert solution. Integration combines the strengths of each individual sensor to eliminate shortfalls in wind shear detection caused by wet and dry weather conditions or to overcome gaps in coverage of single sensors caused by blockage, clutter, lack of sensitivity or inability to monitor both low and high altitudes.
LLWAS is available as a stand-alone product or as part of an integrated solution for wind shear detection.

Leonardo Germany
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