Airliners have an angle of attack sensor.

飞机有攻角传感器。

That difference there is the angle of attack, sometimes called alpha.

这个差别就是迎角，有时也称为阿尔法。

One of the most important concepts in aviation is the angle of attack.

航空飞行其中一个最重要的概念是迎角。

Airliners have an angle of attack sensor. It's connected to the instruments and systems inside the plane.

客机搭载有迎角传感器。这个设备与飞机内部的仪器和系统相连接。

If the angle gets too big, if it exceeds a critical angle of attack a plane stalls.

如果角度变得太大，如果超过一个临界攻角，飞机就会失速。

This particular aircraft has a new, something new, as far as how the autopilot responds when the angle of attack.

这款飞机采用了新技术，即自动驾驶仪如何应对迎角。

You can see the kind of little bone that sticks out the front called the pteroid and that is used to move that front bit of wing up and down, which helps like the angle of attack.

你可以看到前面伸出来的一种小骨头叫做翼骨，它用来下移动翅膀前面的部分，这有助于形成攻角。

Consulting with Boeing's guru of wing design, W. T. Hamilton, Sutter realized that to  correct this problem would have meant a complete redesign of the wing, decreasing  the angle of attack on the outside edge.

在咨询波音机翼设计大师 W. T. Hamilton 后，Sutter 意识到要解决这个问题就意味着要彻底重新设计机翼， 减少外缘的攻角。