V2EX stall speed

Stall Speed

定义 Definition

(航空)失速速度:飞机在给定重量、构型与飞行条件下,机翼还能产生足够升力维持可控飞行的最低速度;低于此速度更容易发生失速(气流分离、升力骤减)。不同襟翼/起落架构型、载重、重心、转弯载荷因子等都会改变失速速度。

发音 Pronunciation

/stl spid/

例句 Examples

The pilot reduced speed carefully to stay above stall speed.
飞行员小心降低速度,确保仍高于失速速度。

In a steep turn, the stall speed increases because the wing must produce more lift.
在陡转弯中,由于机翼需要产生更大的升力,失速速度会增加。

词源 Etymology

stall 在航空语境中指“(飞机)失速”,源自更早的英语用法,含“使停住、使停止进展”的意思;后来借用来描述机翼因迎角过大导致气流分离、升力“停摆”的状态。speed 为“速度”。合起来 stall speed 即“发生失速的临界速度”。

相关词 Related Words

文学与经典作品 Literary Works

  • Stick and Rudder(Wolfgang Langewiesche)以通俗方式解释失速、迎角与相关速度概念。
  • Pilot’s Handbook of Aeronautical Knowledge(FAA,官方航空知识手册)系统讲解失速与失速速度(含 Vs/Vso 等)。
  • Airplane Flying Handbook(FAA)在训练科目(如失速练习、转弯)中反复使用“stall speed”等术语。
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