Test results indicate that the calibration factor for each combination of pitch and yaw angles tested is practically constant up to 0.8 Mach. Greater calibration factor variation exists for changes in yaw angle than pitch, and only slightly more variation for positive pitch than for negative pitch values. At zero pitch and zero yaw angles, the errors in differences between total and static pressures given by pitot-static tubes did not exceed 1.6% up to 0.925 Mach.
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