System for use in conducting wake investigation for a wing in flight

摘要

A system supported by a wing in flight having a reference total pressure port in spaced relation with a wake as the wake is generated by the wing, a reference static pressure port supported in spaced relation with the wake, a probe adapted to be displaced along an arcuate path through the wake including a total pressure port and static pressure ports. A differential pressure transducer and a pressure switching device interposed between the ports and the transducer is provided for selectively connecting pairs of the ports to the transducer in opposed relation, whereby a single transducer is utilized in obtaining differential pressure measurement for the wake with enhanced accuracy.