![](https://cos-cdn.shuashuati.com/pipixue-web/2020-1231-2005-12/ti_inject-812ce.png)
()The tail assembly or empennage consists of two sets of surfaces, usually one horizontal and one vertical. The vertical element has a fixed part called the vertical stabilizer and a movable part called the rudder. The rudder is controlled by the pedals on the cockpit floor.