Abstract: An air data system includes pitot pressure probes with sensing ports, anti-icing electric heaters, conduits, pressure transducers, outer air temperature sensors, and a computer incorporated in a single streamlined housing attached to the aircraft and composed of axisymmetric surfaces. The system is autonomous and interacts with the aircraft and its subsystems through only the information exchange channels and power supply lines via electric connectors. The housing also incorporates electric adapters and the system includes pitot pressure probes which are faceted pins protruding from the housing having sensing ports between edges. The housing surface or its part can be made of hydrophobic materials. The system can include a set of independent subsystems wherein the units and components are housed in individual streamlined housings attached to aircraft components. The subsystems are autonomous and interact with the aircraft and the other subsystems through the information exchange and power supply lines only.

Abstract: The present invention relates to aviation. The proposed air data system includes pitot pressure probes with sensing ports, anti-icing electric heaters, conduits, pressure transducers, outer air temperature sensors, and computer; the above units and components are incorporated in a single streamlined housing attached to the aircraft and composed of axisymmetric surfaces. The system for air data acquisition is autonomous and interacts with the aircraft and its subsystems through only the information exchange channels and power supply lines via electric connectors. To make the system more autonomous, its housing also incorporates electric adapters. To expand the measurement range, to save structural weight and diminish the necessary number of pressure measurement channels, the system includes pitot pressure probes which are the faceted pins protruding from the housing and having the sensing ports between edges.

Abstract: Since, as a rule, there are several such PSTs on an aircraft, this results in a marked reduction in weight and aerodynamic drag, and savings in the required electric power in conjunction with a simultaneous increase in the accuracy of measurement of the angle of attack. All this permits a substantial increase in the competitiveness of the proposed fuselage Pitot-static tube.

Abstract: A Pitot-Static tube including three groups of orifices for determining the total pressure, static pressure and angle of attack, an axially symmetric body and a strut for fastening to pneumatic paths arranged between them and to electric heating elements. In order to reduce the aerodynamic drag of the Pitot-Static tube and the power required for heating the anti-icing system, the orifices for measuring the static pressure are arranged on a plate upstream of the strut.

Abstract: Since, as a rule, there are several such PSTs on an aircraft, this results in a marked reduction in weight and aerodynamic drag, and savings in the required electric power in conjunction with a simultaneous increase in the accuracy of measurement of the angle of attack. All this permits a substantial increase in the competitiveness of the proposed fuselage Pitot-static tube.

Abstract: The invention relates to a fuselage Pitot-static tube comprising three groups of orifices for determining the total pressure (2), static pressure (3) and angle of attack (6, 7), and an axisymmetric body (1) and strut (5) for mounting an anti-icing system having, arranged between them, airways (10) and electric heating elements (8). The orifices for determining the angle of attack are arranged on the strut, whose cross section is constructed in the form of a subsonic aerodynamic profile with a rounded-off nose or a tapered nose, and are arranged between the nose of the profile and the position of its maximum thickness.