https://www.engineeringtoolbox.com/standard-atmosphere-d_604.htmlU.S. Standard Atmosphere
Properties of US standard atmosphere* ranging -5000 to 250000 ft altitude
The “standard atmosphere” is just a set of assumptions, it’s useful for keeping airplanes from hitting each other. It doesn’t mean that the pressure is constant from -5000 to 25000 ft.GRA said:For the curious:https://www.engineeringtoolbox.com/standard-atmosphere-d_604.htmlU.S. Standard Atmosphere
Properties of US standard atmosphere* ranging -5000 to 250000 ft altitude
*US Standard Atmosphere is the same as International Standard Atmosphere (ISA) up to 32km. Temp and humidity will cause variations from "standard", which is never actually experienced in the real world.
Kev994 said:The “standard atmosphere” is just a set of assumptions, it’s useful for keeping airplanes from hitting each other. It doesn’t mean that the pressure is constant from -5000 to 25000 ft.GRA said:For the curious:https://www.engineeringtoolbox.com/standard-atmosphere-d_604.htmlU.S. Standard Atmosphere
Properties of US standard atmosphere* ranging -5000 to 250000 ft altitude
*US Standard Atmosphere is the same as International Standard Atmosphere (ISA) up to 32km. Temp and humidity will cause variations from "standard", which is never actually experienced in the real world.
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