Local Night
Local Night refers to the period of time between the end of evening civil twilight and the beginning of morning civil twilight at a specific location. During this time, the sun is below the horizon and the sky is dark. In aviation, local night is an important concept as it affects the visibility and lighting conditions for pilots. The Federal aviation administration (FAA) defines night as the period of time between the end of evening civil twilight and the beginning of morning civil twilight, or the time between sunset and sunrise. Pilots must have specific training and certification to fly during local night, and aircraft must be equipped with appropriate lighting and navigation systems.
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