今年５月２９日，中国东 方航空公司用Ａ３４０飞机从芝加哥至上海成功地进行了北极航路示范飞行，获得了一些有价值的经验。为什么要进行极地飞行由美国到中国的常规航路通过北太平洋或俄罗斯远东地区。该航路与极地航路相比，地面距离较长，并且顶风较大。从美国中东部城市到 On May 29 this year, China Eastern Airlines successfully carried out a demonstration flight over the Arctic route from Chicago to Shanghai using the A340 aircraft and gained some valuable experience. Why do polar routes fly from the United States to China via the normal route through the North Pacific or the Russian Far East. The route compared with the polar route, the ground distance longer, and the wind is larger. From the US Mid East to the city