IFR has various meanings in the Scientific & Educational category. Discover the full forms, definitions, and usage contexts of IFR in Scientific & Educational.
Plural, Regulations which must be followed when weather conditions do not meet the minima for visual flight.
Scientific & EducationalElectromagnetic radiation of wavelengths between 7500 A, the limit of the visible light spectrum at the red end, and centimetric radio waves.
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