visual flight rule

Japanese: visual flight rule(英語表記)visualflightrule
visual flight rule

... Aviation weather observations are conducted precisely because each airport has minimum weather conditions for safe takeoff and landing, and flight procedures are restricted by weather conditions even when the weather is better than the minimum conditions.
[Flight method]
There are two flight rules: visual flight rules (VFR) and instrument flight rules (IFR). If the ground visibility at an airport is 5km or more and the cloud height is 300m or more (450m at some airports), the weather conditions are called visual meteorological conditions (VFR meteorological conditions (VMC)), and aircraft can fly according to VFR.

From [Visual Flight Rules]

…In weather conditions where sufficient visibility is always maintained, pilots can fly freely at their own discretion, receiving only instructions from air traffic control at and around the airport. This is called visual flight rules, or VFR for short. With this system, pilots can fly simply by submitting a flight plan to the nearest airport office, and can freely choose their course as long as they are within the altitude limits of VFR. …

*Some of the terminology that refers to "visual flight rules" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

… 航空気象観測がきめ細かく行われるのは,航空機を安全に離着陸させるための最低気象条件が各飛行場で決められており,気象状態が最低気象条件より良い場合でも,飛行方式を気象状態によって制限するためである。
[飛行方式]
 飛行方式には有視界方式visual flight rule(VFR)と計器飛行方式instrument flight rule(IFR)がある。いま飛行場の地上視程が5km以上,雲高が300m(一部の飛行場は450m)以上あれば,その気象状態を有視界気象状態VFR meteorological condition(VMC)と呼び,航空機はVFRに従って飛行できる。…

【有視界飛行方式】より

…十分な視界がつねに確保されるような気象状態では,パイロットは空港および空港周辺で航空交通管制の指示を受けるだけで,あとは独自の判断で自由に飛行できる。これを有視界飛行方式visual flight rulesといい,略してVFRとも呼ばれる。この方式による場合,飛行計画を最寄りの空港事務所に提出するだけで飛行でき,VFRに規定された高度であれば,自由にコースを選ぶことができる。…

※「visual flight rule」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

<<:  visual purple

>>:  visual display terminal

Recommend

Zimbalist, E. (English spelling) ZimbalistE

… [Japanese Violin] The introduction of the violi...

Founder - Hokkinin

A promoter is a person who signs the articles of ...

Superior limit

If there is a sequence of real numbers { ai | i = ...

Intervertebral Disc Herniation

◎ It tends to occur in the lower lumbar vertebrae ...

Sensuke Suga

Date of birth and death unknown. Author of Joruri...

Euglena (green worm) - Euglena

Euglena is a green, single-celled algae that grows...

Prince Arisugawa Takehito

1862-1913 The fourth son of Prince Arisugawa Taka...

Han Yi - Kanaku

A Chinese poet of the late Tang dynasty. His pen ...

Superplasticity

…Under certain conditions, a material can undergo...

Angelus Silesius

1624‐77 A mystical religious poet of the German Ba...

Fujiwara no Michitoshi - Michitoshi Fujiwara

A poet of the late Heian period. Son of Tsunehira...

Good Faction - Zenpa

A school of Buddhist sculptors who were active in ...

Kawamozuku - Kawamozuku

A freshwater red alga of the family Bacillaceae th...

FDA - US Food and Drug Administration

A government agency in the United States. It is t...

Military exercises

Since maneuvers are the only way to conduct practi...