| 单词 | servo tab |
| 释义 | > as lemmasservo tab servo tab n. Aeronautics (a) (originally) a hinged flap on the trailing edge of a control surface of an aeroplane, designed to automatically move in the direction opposite that of the moving control surface; = balance tab n. at balance n.1 Additions; (b) (in later use also) a flap attached to the trailing edge of a helicopter's rotor blade, where it performs a function similar to that performed by the elevators in an aeroplane. ΚΠ 1937 Jrnl. Aeronaut. Sci. 4 388/1 Balanced and unbalanced control surfaces, each equipped with the same servo tab. 1952 Flying May 31 Has improved servo tabs, longer rotor blades, twin fins. 2013 W. Johnson Rotorcraft Aeromech. i. 19 Servo tabs on the blades produced cyclic and collective pitch changes. 2016 Pilot's Handbk. Aeronaut. Knowl. (Federal Aviation Administration) (rev. ed.) vi. 11/2 Servo tabs are sometimes referred to as flight tabs and are used primarily on large aircraft. < as lemmas |
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