V2EX vmc

VMC

释义 Definition

VMC 通常指 Visual Meteorological Conditions,即“目视气象条件”:在航空领域中,天气与能见度等条件满足规定标准,飞行员可以主要依靠外部目视参照进行飞行(与 IMC“仪表气象条件”相对)。
(注:VMC 在其他领域也可能是不同缩写,但航空用法最常见。)

发音 Pronunciation (IPA)

/vi em si/

例句 Examples

The flight continued under VMC.
该航班在目视气象条件(VMC)下继续飞行。

Although the forecast suggested marginal VMC, the crew prepared for a possible transition to instrument procedures.
尽管预报显示可能接近最低目视气象条件,机组仍为可能转入仪表程序做了准备。

词源 Etymology

VMC 为英语短语 Visual Meteorological Conditions 的首字母缩写(initialism)。该术语用于航空法规与飞行运行中,用来区分“可以按目视规则安全飞行”的气象环境,与 IMC(Instrument Meteorological Conditions)形成对照。

相关词 Related Words

文学与著名作品 Literary & Notable Works

  • FAA《Aeronautical Information Manual (AIM)》(美国《航空信息手册》)中在目视/仪表飞行与气象章节频繁出现 VMC
  • ICAO《Annex 2 Rules of the Air》(国际民航组织《附件2:空中规则》)中用于界定目视气象条件与相关运行要求
  • EASA/CAA 飞行训练教材与考试大纲(欧洲航空安全局/英国民航局等)中常以 VMC 讨论“最低目视条件”“边缘VMC(marginal VMC)”等概念
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