PITOT STATIC SYSTEMS WITH ANGLE OF SIDESLIP DETERMINATION AND COMPENSATION
FIG2C is a schematic view of an embodiment of an air data probe in accordance with this disclosure
In certain embodiments, the AOS module 103 is configured to determine the LAOS by receiving the at least one total pressure value and the at least one static pressure value from the pitot static system 101 at each location. The AOS module 103 can be configured to receive the at least one differential static pressure value of the flow from the pitot static system 101 at each location or derive the at least one differential static pressure value from a plurality of static pressure values from the pitot static system at each location. The AOS module 103 can be configured to determine a local angle of attack (LAOA) value at each location based on the at least one differential static pressure value and compare total pressure to static pressure ratio (Pt/Ps) to the LAOA value to determine the LAOS value at each location based on stored LAOS correlation data for each location.In certain embodiments, as shown in FIG2C, the pitot static system 101 can include, e.g., at each location, a pitot tube 203 having at least one total pressure port 204 and at least two static pressure ports 207a, 207b that are disposed 180 degrees apart from each other to allow determination of differential pressure value, as appreciated by those having ordinary skill in the art in view of this disclosure. Such ports can be used to determine differential pressure to determine to allow the system to determine a first local flow angle (e.g., local angle of attack).
schematic view
100
system
203
pitot tube
101
pitot static system pitot static systems
103
module
['1. An air data probe system (100), comprising: a pitot static system (101) configured to sense at least one total pressure value of a flow at one or more locations, at least one static pressure value of the flow at the one or more locations, and, directly or indirectly, at least one differential static pressure value of the flow at the one or more locations; and an angle of slip (AOS) module (103) configured to determine a local angle of slip (LAOS) value at each location based on the at least one total pressure value at each location, the at least one static pressure value at each location, and the at least one differential static pressure value at each location.', '9. The system of any preceding claim, wherein the pitot static system (101) includes a pitot tube (203) having at least one total pressure port (204) and at least two static pressure ports (207a,207b) 180 degrees apart from each other to allow determination of differential pressure value to allow the system (101) to determine a first local flow angle.']