Research and Engineering Controls Ltd. have recently announced an aircraft pitot pressure head of high de‐icing performance suitable for use on subsonic or supersonic aircraft at altitudes up to 100,000 ft. and within a pressure range of 1 to 100 in. of mercury. Designed for minimum aerodynamic drag, very low dependence on incidence angles, long service life and optimum sclf‐rcgulating de‐icing and anti‐icing capabilities, the tube is claimed to have passed the most strict wind‐tunnel icing tests (including dry ice crystals) expected in practical flight at angles of attack up to 25 deg.