飞机在飞行中,普遍采用的阶梯下降程序,这需要航空器频繁改变推力、增加下降角度和调整高度,这样加大了飞行员和管制员的工作压力,同时对最后阶段飞行的油量也有增加。通过对连续下降进近(CDA)的现状进行分析,给出连续下降进近相对传统进近方式的优势,并结合航空公司手工飞行计划制作的方法及原理对连续下降进近在最后阶段飞行时间和燃油方面的节约进行验证。 The generally-used ladder descent procedure in flight requires the aircraft to frequently change thrust, increase descent angle and adjust altitude, which increases the working pressure of pilots and controllers and also increases the amount of fuel for the final phase of flight. By analyzing the present situation of continuous descent approach (CDA), the advantage of continuous descent approach compared with traditional approach is given. Combined with the method and principle of handmade flight planning by airlines, And fuel economy savings.