Mach Number A non-dimensional parameter equal to the velocity divided by the local speed of sound. Dynamic Pressure Pressure quantity equal to the product of one-half the density and the square of the velocity. Airspeed is typically measured using a pressure differential device called a pitot tube, and therefore is susceptible to variation at different altitudes. Calibrated Airspeed gradually deviates from True Airspeed as altitude increases. Calibrated Airspeed Airspeed adjusted for pressure-altitude effect. Parameter Definitions Altitude The height above mean sea level (MSL).
Compared to the standard atmosphere, the Vandenberg temperatures are warmer through most of the troposphere, become colder in the lower stratosphere, and then become warmer again in the rest of the stratosphere. 1971 Vandenberg AFB This is a model that is directly applicable to Vandenberg Air Force Base. Compared to the standard atmosphere, the Cape Kennedy temperatures are warmer in the troposphere and colder in the stratosphere. Standard models to be directly representative of Cape Kennedy, Florida.
1963 Patrick AFB This is a model that is adjusted from the U.S. They are generally considered representative of mean conditions at 45° N latitude, and therefore are not the most accurate models possible for other locations. Standard Atmosphere At the altitudes covered by this calculator, the 19 U.S. Our unique products and services are valued by government agencies, commercial companies, academic institutions, and private individuals around the world.Ītmospheric Models 1962/1976 U.S.
Speed of sound calculator software#
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