Cfrisella
Well Known Member
Is it normal to see an increase in airspeed when testing the static system with a slight vacuum? I tested the pitot side and that is leak free and operating fine. When I pulled a vacuum on the static side both my GRT and Vans ASI show a speed increase. My first thought is a calibration task not yet performed or the system needs a positive pressure from the pitot, which it's not getting. Or I just hooked something up wrong. Most likely reason.