V2EX groundspeed

Groundspped

释义 Definition

groundspeed(更常写作 groundspeed / ground speed)地速,指飞行器相对于地面的实际移动速度;通常等于空速与风速影响后的结果(顺风更快、逆风更慢)。在航空导航、飞行计划与到达时间估算中很常用。

发音 Pronunciation (IPA)

/randspid/

例句 Examples

The groundspeed is 120 knots.
地速是120节。

Although the aircraft maintained the same airspeed, a strong headwind reduced its groundspeed and delayed the arrival.
尽管飞机保持相同的空速,强逆风降低了地速,导致到达时间延后。

词源 Etymology

ground(地面)+ speed(速度) 组合而成,是航空与航海语境中的技术复合词,用来强调“相对于地面”的速度概念,以区别于 airspeed(空速) 等术语。

相关词 Related Words

文学作品与著名文本 Literary Works

在通用文学作品中并不常见(更偏技术术语),但常见于航空教材、飞行员手册与训练材料,例如:

  • Pilot’s Handbook of Aeronautical Knowledge(FAA)
  • Airplane Flying Handbook(FAA)
  • Jeppesen 飞行训练/导航教材系列
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