Aviator168
Well Known Member
Anyone know how much I am off if flying very slow and with a fairly large AoA (3-6 degrees)? I know the pitot is not pointing at the direction of flight in this situation and IAS is reading lower than it really is.
NACA studies showed that the pitot pressure should be very accurate as long as the airflow is aligned within 15 to 20 degrees of the pitot tube (see data from NACA TN 2331, reproduced in Figures 4.5 to 4.7 in NASA Reference Publication 1046, Measurement of Aircraft Speed and Altitude - 24 MB pdf file).Anyone know how much I am off if flying very slow and with a fairly large AoA (3-6 degrees)? I know the pitot is not pointing at the direction of flight in this situation and IAS is reading lower than it really is.