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Trustworthy ILS?

机译:值得信赖的ILS?

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摘要

Imagine you're in the cockpit of a C-5 receiving vectors for an Instrument Landing System (ILS) approach into Spangdhalem AB, Germany. It is a night approach, with weather being reported around 700 feet with moderate turbulence and strong crosswinds. As the aircraft rolls out on the localizer, the glideslope pointer immediately comes into view, and the aircraft captures the glideslope and starts down while the crew configures for final approach. The ILS ident checks good, and the aircraft is centered on course, on glideslope with no warning flags. Approach control asks the pilot to say altitude about the time the pilots notice a descent rate of almost 1,500 feet per minute. This is followed shortly by Ground Proximity Warning System (GPWS) warning "Sink Rate, Sink Rate," and the crew makes the decision to go missed approach just as the radar altimeter audible warning sounds "minimums, minimums." The crew executes the missed approach almost five miles from the airfield at a height of 240 feet AGL, obviously well below the actual glidepath for the approach and obstacle clearance altitude.
机译:想象一下,您正处在C-5的驾驶舱中,该设备正在接受向德国Spangdhalem AB的仪表着陆系统(ILS)进近的矢量。这是一个夜间进场,据报道天气在700英尺左右,有中等湍流和强风。当飞机在定位器上滑落时,滑行指针立即进入视野,飞机捕获滑行并开始下降,而机组人员为最终进近做好了准备。 ILS身份检查良好,飞机处于航线中心,在滑坡上,没有警告标志。进近控制系统要求飞行员讲讲飞行员注意到下降速度接近每分钟1500英尺的时间的高度。随后不久,地面接近警告系统(GPWS)警告“下沉率,下沉率”,并且机组人员决定采用错过进近的方式,就像雷达高度计的可听警告听起来“最小,最小”一样。机组人员在距飞机场约5英里,高度为240英尺AGL的高度执行了错过进近,明显低于进近和障碍物清除高度的实际滑行路径。

著录项

  • 来源
    《Flying safety magazine》 |2006年第5期|p.24-25|共2页
  • 作者

    JAMES HAM;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 航空;
  • 关键词

  • 入库时间 2022-08-17 23:29:11

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