International Standard Atmosphere (IAS)
The International Standard Atmosphere (IAS) is a theoretical model used to predict and compare the performance of aircraft and missiles in different atmospheric conditions. It is a globally agreed standard for reference atmospheric conditions, which is used as a basis for a wide range of scientific and engineering calculations. The IAS defines standard values for atmospheric pressure, air temperature, density, and other parameters at different altitudes. These values serve as a basis for designing and testing aircraft, as well as simulating atmospheric conditions in various scenarios. In essence, the IAS provides a standardized framework for understanding the behavior of the atmosphere, which is essential for the development of aviation and other aerospace technologies.
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