TY - JOUR AB - An air speed indicator comprising a Pitot head, pressure‐sensitive indicating means operated by changes of pneumatic pressure at the Pitot head, heating means for the Pitot head, an ice‐accretion detector and means operated by the said detector for controlling said heating means to provide heating of the Pitot head only when ice is present. VL - 13 IS - 6 SN - 0002-2667 DO - 10.1108/eb030794 UR - https://doi.org/10.1108/eb030794 PY - 1941 Y1 - 1941/01/01 TI - U.S. Patent Specifications T2 - Aircraft Engineering and Aerospace Technology PB - MCB UP Ltd SP - 177 EP - 178 Y2 - 2024/04/25 ER -