Hello everyone, I just found this site and I'm really hoping to find an answer to my problem! As the title tells my problem is this: I'm working on a project with pitot-static tube and I'm wondering how to get the tube correctly placed in a wind tunnel. Every guidance I can find just says pitot tube must be properly aligned with the flow. Exactly how can one align it properly? I have this theory that it's correctly aligned when the static ports of the tube shows the lowest reading (meaning it's 90 degrees to flow) and the stagnation pressure (total pressure) is it's highest (meaning it's head-on to flow). I'm thinking that would indicate the tube is coaxial with the flows direction. Could someone wiser please confirm if my theory is right or wrong. I'm not yet sure what kind of a differential pressure transducer I'm using but in case it's digital that shows just the difference between these two pressures how can I tell when the static pressure is it's lowest and stagnation pressure it's highest?