In aviation, visual meteorological conditions (or VMC) is an aviation flight category in which visual flight rules (VFR) flight is permitted—that is, conditions in which pilots have sufficient visibility to fly the aircraft maintaining visual separation from terrain and other aircraft. They are the opposite of instrument meteorological conditions (IMC). The boundary criteria between IMC and VMC are known as the VMC minima and are defined by: visibility, cloud ceilings (for takeoffs and landings), and cloud clearances.

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  • In aviation, visual meteorological conditions (or VMC) is an aviation flight category in which visual flight rules (VFR) flight is permitted—that is, conditions in which pilots have sufficient visibility to fly the aircraft maintaining visual separation from terrain and other aircraft. They are the opposite of instrument meteorological conditions (IMC). The boundary criteria between IMC and VMC are known as the VMC minima and are defined by: visibility, cloud ceilings (for takeoffs and landings), and cloud clearances. The exact requirements vary by type of airspace, whether it is day or night (for countries that permit night VFR), and from country to country. Typical visibility requirements vary from one statute mile to five statute miles (many countries define these in metric units as 1,500 m to 8 km). Typical cloud clearance requirements vary from merely remaining clear of clouds to remaining at least one mile away (1,500 m in some countries) from clouds horizontally and 1,000 feet away from clouds vertically. For instance, in Australia, VMC minima outside controlled airspace are clear of cloud with 5,000 m visibility below 3,000 ft AMSL or 1,000 ft AGL (whichever is higher), and 1,000 ft vertical/1,500 m horizontal separation from cloud above these altitudes or in controlled airspace. Above 10,000 ft, 8,000 m visibility is required to maintain VMC. Air traffic control may also issue a "special VFR" clearance to VFR aircraft, to allow departure from a control zone in less than VMC – this reduces the visibility minimum to 1,600 m. Generally, VMC requires greater visibility and cloud clearance in controlled airspace than in uncontrolled airspace. In uncontrolled airspace there is less risk of a VFR aircraft colliding with an instrument flight rules (IFR) aircraft emerging from a cloud, so aircraft are permitted to fly closer to clouds. An exception to this rule is class B airspace, in which ATC separates VFR traffic from all other traffic (VFR or IFR), which is why in class B airspace lower cloud clearance is permitted. (en)
  • Die Begriffe Visual Meteorological Conditions (VMC) und Sichtflugwetterbedingungen sind synonym und bezeichnen die minimalen Wetterbedingungen, die erfüllt sein müssen, um Flüge nach Sichtflugregeln durchzuführen. Die Mindestbedingungen sind abhängig vom jeweiligen Luftraum und setzen sich aus der Flugsicht und Mindestabständen zu Wolken zusammen. In manchen Lufträumen werden noch eine mindest-Bodensicht, Mindesthöhe der Hauptwolkenuntergrenze oder Erdsicht gefordert. Werden diese Mindestbedingungen nicht erreicht, herrschen Instrument Meteorological Conditions. Es können jedoch Sonder-VFR-Freigaben erteilt werden. (de)
  • In aeronautica, le Visual Meteorological Conditions (VMC), traducibile come "Condizioni meteo per il volo a vista" sono quelle condizioni meteorologiche in cui il volo a vista (VFR) è permesso, quindi quelle condizioni in cui il pilota ha visibilità sufficiente per pilotare l'aeromobile mantenendo una separazione a vista dal terreno ed altri aeromobili. Queste sono il contrario delle Instrumental Meteorological Conditions (IMC) . IMC e VMC sono naturalmente mutuamente esclusive. Il limite fra VMC e IMC è conosciuto come "minime VMC" . Tali condizioni sono definiti tramite un limite di visibilità e una distanza minima dalle nubi e variano in base allo spazio aereo nella quale l'aeromobile si trova. In Italia, tali minime sono pubblicate in AIP Italia, ENR 1-2 ed ENR 1-4.Tali minime sono suddivise per tipo di spazio aereo (A-G), per regole di volo (IFR - VFR), tipo di aeromobile (elicotteri - ala fissa), giorno o notte. (it)
  • Les conditions météorologiques de vol à vue ou conditions VMC sont détaillées dans les Règles de l'Air et sont celles qui permettent le vol VFR. En d'autres termes, ce sont les conditions pour lesquelles le pilote a assez de visibilité pour voler sans instruments. Les critères qui séparent VMC de son opposé, IMC (conditions météorologiques de vol aux instruments), sont dictées par des minima de visibilité, plafond nuageux et distance des nuages comme indiqué dans le tableau ci-dessous : (fr)
  • VMC (ang. Visual Meteorological Conditions) – określenie stosowane w lotnictwie, które oznacza minima pogodowe, które muszą być spełnione do wykonywania lotów VFR. (pl)
  • Em aviação, o VMC é uma sigla que se refere às condições meteorológicas visuais (Visual Meteorological Conditions, em inglês), utilizada para informar que as as operações aéreas podem acontecer através das regras visuais ou VFR. Em oposição ao VMC há o IMC. Deve-se lembrar que só existe VMC com METAR indicando valor maior que 015 (1500 pés de altura) para OVC (encoberto) ou BKN (nublado). Ex: OVC020 ou BKN030. (pt)
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  • Les conditions météorologiques de vol à vue ou conditions VMC sont détaillées dans les Règles de l'Air et sont celles qui permettent le vol VFR. En d'autres termes, ce sont les conditions pour lesquelles le pilote a assez de visibilité pour voler sans instruments. Les critères qui séparent VMC de son opposé, IMC (conditions météorologiques de vol aux instruments), sont dictées par des minima de visibilité, plafond nuageux et distance des nuages comme indiqué dans le tableau ci-dessous : (fr)
  • VMC (ang. Visual Meteorological Conditions) – określenie stosowane w lotnictwie, które oznacza minima pogodowe, które muszą być spełnione do wykonywania lotów VFR. (pl)
  • Em aviação, o VMC é uma sigla que se refere às condições meteorológicas visuais (Visual Meteorological Conditions, em inglês), utilizada para informar que as as operações aéreas podem acontecer através das regras visuais ou VFR. Em oposição ao VMC há o IMC. Deve-se lembrar que só existe VMC com METAR indicando valor maior que 015 (1500 pés de altura) para OVC (encoberto) ou BKN (nublado). Ex: OVC020 ou BKN030. (pt)
  • In aviation, visual meteorological conditions (or VMC) is an aviation flight category in which visual flight rules (VFR) flight is permitted—that is, conditions in which pilots have sufficient visibility to fly the aircraft maintaining visual separation from terrain and other aircraft. They are the opposite of instrument meteorological conditions (IMC). The boundary criteria between IMC and VMC are known as the VMC minima and are defined by: visibility, cloud ceilings (for takeoffs and landings), and cloud clearances. (en)
  • Die Begriffe Visual Meteorological Conditions (VMC) und Sichtflugwetterbedingungen sind synonym und bezeichnen die minimalen Wetterbedingungen, die erfüllt sein müssen, um Flüge nach Sichtflugregeln durchzuführen. (de)
  • In aeronautica, le Visual Meteorological Conditions (VMC), traducibile come "Condizioni meteo per il volo a vista" sono quelle condizioni meteorologiche in cui il volo a vista (VFR) è permesso, quindi quelle condizioni in cui il pilota ha visibilità sufficiente per pilotare l'aeromobile mantenendo una separazione a vista dal terreno ed altri aeromobili. Queste sono il contrario delle Instrumental Meteorological Conditions (IMC) . IMC e VMC sono naturalmente mutuamente esclusive. Il limite fra VMC e IMC è conosciuto come "minime VMC" . (it)
rdfs:label
  • Visual meteorological conditions (en)
  • Visual Meteorological Conditions (de)
  • Visual Meteorological Conditions (it)
  • Visual Meteorological Conditions (fr)
  • Visual Meteorological Conditions (pl)
  • VMC (aviação) (pt)
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