🌐한국어EnglishDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTürkçeРусскийالعربيةفارسیไทย한국어中文日本語EntityQ907246· pop 28· linked from 683 articles유시계 비행방식Also known as VFRset of regulations under which a pilot operates an aircraft in clear weather conditionsAvailable in 27 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةCatalanConnectionscontrolled airspaceEntityair traffic controlEntityCategoriesAir traffic controlAviation meteorologyLow flyingVisual flight rules