Advanced Measurement Techniques at Flight Reynolds Numbers in Europe

In recent years. measurement techniques at real-flight Reynolds numbers using real airplanes and high Reynolds number cryogenic wind tunnels like European Transonic Windtunnel (ETW) has been actively developed also in European countries. In this paper, the overview of the Advanced ln-Flight Measurement Techniques (AIM) as European projects and the obtained knowledge through at the in-flight PSP measurement are reported. In addition, the high Reynolds number testing including TSP performed in cryogenic wind tunnels such as ETW are presented