FUSELAGE PITOT-STATIC TUBE WITH A STRUT Russian patent published in 2000 - IPC

FIELD: aviation. SUBSTANCE: the pitot-static tube contains an asymmetric body secured on a strut, with pneumatic lines and electric heating elements of the ice protection system located inside them. Provision is made for three groups of openings for determining the Pitot pressure, static pressure and angle of attack. The openings for determining the angle of attack are located on the strut, whose sections are made in the form of a subsonic aerofoil profile with a rounded nose, and positioned between the profile nose and position of its maximum thickness. The strut of the pitot-static tube is made with a profile, whose parameters are given in the invention formula. EFFECT: simplified design, reduced mass, aerodynamic drag, enhanced accuracy of measurements. 10 cl, 14 dwg, 1 tbl