usable ceiling

См. также в других словарях:

• usable ceiling — The highest altitude for multiengine aircraft at which the rate of climb is 50 ft/min with one engine throttled back fully. Also called an emergency ceiling …   Aviation dictionary

• Ceiling (aeronautics) — In aeronautics, a ceiling is the maximum density altitude an aircraft can reach under a set of conditions.ervice ceilingThe service ceiling attempts to capture the maximum usable altitude of an aircraft. Specifically, it is the density altitude… …   Wikipedia

• emergency ceiling — The highest altitude for multi engine aircraft at which the rate of climb is 50 ft/min with one engine throttled back fully. Also called a usable ceiling …   Aviation dictionary

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