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NASA-TN-D-6827
Flight calibration of compensated and uncompensated pitot-static airspeed probes and application of the probes to supersonic cruise vehicles
Year: 1972
Abstract: Static pressure position error calibrations for a compensated and an uncompensated XB-70 nose boom pitot static probe were obtained in flight. The methods (Pacer, acceleration-deceleration, and total temperature) used to obtain the position errors over a Mach number range from 0.5 to 3.0 and an altitude range from 25,000 feet to 70,000 feet are discussed. The error calibrations are compared with the position error determined from wind tunnel tests, theoretical analysis, and a standard NACA pitot static probe. Factors which influence position errors, such as angle of attack, Reynolds number, probe tip geometry, static orifice location, and probe shape, are discussed. Also included are examples showing how the uncertainties caused by position errors can affect the inlet controls and vertical altitude separation of a supersonic transport.
Subject: ANGLE OF ATTACK
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T16:49:07Z | |
| date available | 2017-09-04T16:49:07Z | |
| date copyright | 01/01/1972 | |
| date issued | 1972 | |
| identifier other | WKBBFEAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/112578 | |
| description abstract | Static pressure position error calibrations for a compensated and an uncompensated XB-70 nose boom pitot static probe were obtained in flight. The methods (Pacer, acceleration-deceleration, and total temperature) used to obtain the position errors over a Mach number range from 0.5 to 3.0 and an altitude range from 25,000 feet to 70,000 feet are discussed. The error calibrations are compared with the position error determined from wind tunnel tests, theoretical analysis, and a standard NACA pitot static probe. Factors which influence position errors, such as angle of attack, Reynolds number, probe tip geometry, static orifice location, and probe shape, are discussed. Also included are examples showing how the uncertainties caused by position errors can affect the inlet controls and vertical altitude separation of a supersonic transport. | |
| language | English | |
| title | NASA-TN-D-6827 | num |
| title | Flight calibration of compensated and uncompensated pitot-static airspeed probes and application of the probes to supersonic cruise vehicles | en |
| type | standard | |
| page | 45 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1972 | |
| contenttype | fulltext | |
| subject keywords | ANGLE OF ATTACK | |
| subject keywords | B-70 AIRCRAFT | |
| subject keywords | CALIBRATING | |
| subject keywords | PITOT TUBES | |
| subject keywords | POSITION ERRORS | |
| subject keywords | REYNOLDS NUMBER | |
| subject keywords | STATIC PRESSURE |