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目前我国飞行程序设计的依据是ICAO DOC8168,根据笔者对规范的理解,采用DME弧的起始进近航段,中间进近定位点应在中间进近航迹与DME弧的交点上。但目前对采用DME弧的起始进近航段,我国现在通常采用的是将中间进近定位点设在转弯改出点上。对此笔者认为不妥,其理由如下: 1.转弯改出点的不确定性。虽然程序上可以公布一个提前量以帮助转至中间航迹,但飞机的转弯半径受飞机所在高度、指示空速及转
At present, the design of flight program in China is based on the ICAO DOC8168. According to the author’s understanding of the code, the initial approach segment of the DME arc is used. The middle approach positioning point should be at the intersection of the middle approach path and the DME arc. At present, however, the initial approach segment adopting the DME arc is currently used in our country to locate the intermediate approach fix point at the turnout point. I think this is not appropriate for the following reasons: 1. Turning point out of the uncertainty. Although the procedure can be announced an advance to help move to the middle of the track, but the turning radius of the aircraft by the height of the aircraft, indicating airspeed and turn