V2EX calibrated airspeed

Calibrated Airspeed

定义 Definition

Calibrated airspeed(校正空速,缩写 CAS):指将指示空速(IAS)按飞机皮托-静压系统与仪表的已知误差(如安装位置误差、仪表误差)进行修正后的空速。CAS 更接近飞机在当前条件下的“真实测得”气流速度读数基础值,常用于性能计算与速度限制对照。(相关概念还有 TAS 真空速EAS 等效空速 等。)

发音 Pronunciation

/klbretd erspid/

例句 Examples

The pilot checked calibrated airspeed during the climb.
飞行员在爬升过程中查看了校正空速。

Because of instrument and position errors, the calibrated airspeed can differ from indicated airspeed, especially in certain flap configurations.
由于仪表误差和位置误差,校正空速可能与指示空速不同,尤其在某些襟翼构型下更明显。

词源 Etymology

calibrated 来自动词 calibrate,意为“校准、标定”,源于“通过标准进行刻度/调整”的含义;airspeedair(空气)+ speed(速度) 的复合词。航空领域中,“校正空速”这一术语用于强调:速度读数并非直接真实”,而是需要根据系统误差进行修正后才更适合用于性能与限制的对照。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Pilot’s Handbook of Aeronautical Knowledge(FAA《航空知识飞行员手册》)
  • Airplane Flying Handbook(FAA《飞机飞行手册》)
  • Aerodynamics for Naval Aviators(《海军飞行员空气动力学》)
  • Flight Training Manual(多版本飞行训练手册,如 RAF/民航训练体系教材中常见速度分类章节)
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