老杰.特

Thrust reversal, also called reverse thrust, is the temporary diversion of an aircraft engine's exhaust so that it is directed forward, rather than backwards. Reverse thrust acts against the forward travel of the aircraft, providing deceleration. Thrust reverser systems are featured on many jet aircraft to help slow down just after touch-down, reducing wear on the brakes and enabling shorter landing distances. Such devices affect the aircraft significantly and are considered important for safe operations by airlines.

反推是发动机排出气体的方向，由向后临时改为向前。反推阻碍航空器向前运动，使之减速。很多喷气式航空器具备反推系统，帮助接地后减速，减少刹车装置磨损，缩短落地滑跑距离。反推装置对航空器有显著影响，有助于运行安全。

经常听管制员将反推称为“反喷”，所以不太习惯“反推”这个说法。

【背景】747-400落地时，发动机反推。

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