A flight ceiling is the upper altitudinal limit at which any aircraft may fly given its mechanical abilities. Altitude is the Elevation of a point or object from a known level or datum (plural data For aviation purposes, ceiling is defined as the height (AGL) of the lowest broken or overcast layer aloft or vertical visibility into an obscuration. Refer to Aviation Weather Manual AC 00-6A.
The term service ceiling refers to the height at which an aircraft's rate of climb, under standard atmospheric conditions, is 100 ft or 30 metres per minute. In Aerodynamics, the rate of climb RoC is the speed at which an Aircraft increases its Altitude.
The ceiling also refers to the height of the lowest cloud layer above the ground, below which Visual meteorological conditions exist, permitting flight by visual flight rules. In Aviation, visual meteorological conditions (or VMC) are those in which Visual flight rules (VFR Flight is permitted—that is conditions For example, a layer of overcast or broken clouds having a base of 3,000 ft. Overcast or overcast weather is the meteorological condition in which Clouds obscure 95% or more of the sky above the ground would constitute a ceiling of 3,000 ft. The absence of any overcast or broken cloud layers is referred to as an "unlimited" ceiling.
See also
Dictionary
flight ceiling
-noun
- The highest altitude at which an aircraft may fly due to physical factors, such as low air density.
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