757的气象雷达

zhengshihui88 · 发表于 2010-12-12 22:53:03

哪位高手请教一下，757的气象雷达在地面试车时油门杆推到多大会自动工作呢？是通过哪个组建给信号的呢
AMM手册是这样讲的
(2) Takeoff Mode of Operation
(a) The PWS is automatically activated according to the following conditions and as shown on
Figure 8.
1) The airplane is on the ground while the engines are at takeoff thrust. The takeoff
discrete is set from the EIUs to the WXR R/T as shown in Figure 4.
2) The airplane is between 50 and 2300 feet AGL.
3) The WXR switch on the EFIS control panel is set to the on position.

信号时什么情况下发出呢？
谢谢啦

radic · 发表于 2011-4-5 11:40:20

兄弟，你这个问题有两个图表没有贴出来，The airplane is on the ground while the engines are at takeoff thrust，这条是意思应该是到起飞推力位置吧，试大车有可能启动，具体最好参考一下图

loveyxh · 发表于 2012-2-25 11:30:11

FIGURE4/8贴出来

ctt0000 · 发表于 2014-6-8 00:25:00

这不是气象雷达自动工作，而是雷达的前视风切变系统自动工作的原理。

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[B757] 757的气象雷达

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