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instrument meteorological conditions
Definição1
The symbol used to designate instrument meteorological conditions. Meteorological conditions are expressed in terms of visibility, distance from clouds, and ceiling, less than the minimums specified for visual flight conditions.
Fonte1
CRANE, Dale (ed.). Dictionary of aeronautical terms. 2nd ed. Renton: ASA, 1991.
Definição2
Meteorological conditions expressed in terms of visibility, distance from clouds, and ceiling less than the minimums specified for visual meteorological conditions, requiring operations to be conducted under IFR.
Fonte2
FEDERAL AVIATION ADMINISTRATION. Pilot's handbook of aeronautical knowledge. [s.l.], 2008. Disponível em http:// www.faa.gov/regulations_policies/handbooks_manuals /aviation/pilot_handbook/media/PHAK %20-%20Cover-Preface.pdf. Acesso em: 20.fev.2015.
Definição3
Meteorological conditions expressed in terms of visibility, the distance from clouds, and the ceiling, less than the minimums specified for visual meteorological conditions. In a control zone, a VFR (visual flight rules) flight may proceed under instrument meteorological conditions if and as authorized by air traffic control.
Fonte3
KUMAR, Bharat (ed.). An illustrated dictionary of aviation. New York: McGraw-Hill, c2005. 752 p.
Fonte4
EMBRAER. Technical dictionary english-portuguese. [São José dos Campos], 2001.
Nota Adicional1
Acronym in English: IMC.
Contexto
However, for operations at night or in instrument meteorological conditions, a width of 75 m on either side of the centre line is recommended.
On flights in which it is intended to land in instrument meteorological conditions, an aeroplane shall be provided with radio equipment capable of receiving signals providing guidance to a point from which a visual landing can be effected.
Français
conditions météorologiques de vol aux instruments