江苏盱眙的胡伟、内蒙古赤峰的刘永学等读者来信点登空速管的有关知识。在飞机的机头或机翼上往往会有一根细长管子安装在很明显的位置。管子的方向朝着飞机的正前方,它就是空速管。从名字看它是用来测量飞机速度的,但实际上它的功用还要多得多。这根管子在国外原来称为“皮托”管(Pitot tube)。亨 Hu Wei in Jiangsu Province, Liu Yongxue in Chifeng, Inner Mongolia, and other readers wrote about the knowledge of the ATCS. There is often an elongated tube on the nose or wing of an airplane that is installed in a prominent position. The direction of the pipe is in front of the plane, which is the tube. From the name it is used to measure the speed of the aircraft, but in fact it is much more useful. This tube was originally called “Pitot tube” abroad. Hang