October 22, 2009 By News Report
Wind farms have the potential to interfere with radar for defense, weather forecasting and air traffic control. As a result, wind farm development has been curtailed in some locations in the U.S. and elsewhere. Today, however, QinetiQ and Vestas Wind Systems announced the successful trial of a radar mitigation technology for wind turbines. New "stealth" technology was demonstrated at a wind farm in Norfolk, UK, as part of a program funded in part by the UK Government Department for Business Innovation and Skills (BIS). The stealth turbine solution uses a portfolio of radar absorbing materials (RAM) that are integrated into the current manufacturing processes for turbine components -- blades, nacelle and tower -- and which can be designed to operate at aviation and maritime frequencies. These include modified composites for nacelle and blades, and sprayable RAM coatings that can be applied directly onto the tower and other static surfaces.
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