  This paper examines the use of a pitot-static tube array (PSA) to estimate
horizontal wind velocity in all directions. This method uses the readings from
the PSA as inputs. No flight tests have been done, but this method could
potentially be used to estimate wind velocity from small UAVs. To do this, UAV
ground speed and attitude must be available as inputs. Wind tunnel data of the
PSA was used to create an algorithm that estimates wind velocity even when the
wind is not parallel with any of the pitot-static tubes. This paper discuses
the wind tunnel data, the algorithm, and the application for small UAVs.
