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Pressure altitude, the Glossary

Index Pressure altitude

Given an atmospheric pressure measurement, the pressure altitude is the imputed altitude that the International Standard Atmosphere (ISA) model predicts to have the same pressure as the observed value.[1]

Table of Contents

  1. 23 relations: Aeronautical Code signals, Altimeter, Altitude, Atmospheric pressure, Aviation, Aviation transponder interrogation modes, Bar (unit), Barometric formula, Cabin pressurization, Commercial pilot licence, Density altitude, Exponential function, Flight level, Foot (unit), Inch of mercury, International Standard Atmosphere, National Oceanic and Atmospheric Administration, Pascal (unit), Private pilot licence, Q code, Sea level, Standard temperature and pressure, Taylor series.

  2. Altitudes in aviation

Aeronautical Code signals

The Aeronautical Code signals are radio signal codes.

See Pressure altitude and Aeronautical Code signals

Altimeter

An altimeter or an altitude meter is an instrument used to measure the altitude of an object above a fixed level.

See Pressure altitude and Altimeter

Altitude

Altitude is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object.

See Pressure altitude and Altitude

Atmospheric pressure

Atmospheric pressure, also known as air pressure or barometric pressure (after the barometer), is the pressure within the atmosphere of Earth.

See Pressure altitude and Atmospheric pressure

Aviation

Aviation includes the activities surrounding mechanical flight and the aircraft industry.

See Pressure altitude and Aviation

Aviation transponder interrogation modes

The aviation transponder interrogation modes are the standard formats of pulsed sequences from an interrogating Secondary Surveillance Radar (SSR) or similar Automatic Dependent Surveillance-Broadcast (ADS-B) system.

See Pressure altitude and Aviation transponder interrogation modes

Bar (unit)

The bar is a metric unit of pressure defined as 100,000 Pa (100 kPa), though not part of the International System of Units (SI).

See Pressure altitude and Bar (unit)

Barometric formula

The barometric formula is a formula used to model how the pressure (or density) of the air changes with altitude.

See Pressure altitude and Barometric formula

Cabin pressurization

Cabin pressurization is a process in which conditioned air is pumped into the cabin of an aircraft or spacecraft in order to create a safe and comfortable environment for humans flying at high altitudes.

See Pressure altitude and Cabin pressurization

Commercial pilot licence

A commercial pilot licence (CPL) is a type of pilot licence that permits the holder to act as a pilot of an aircraft and be paid for their work.

See Pressure altitude and Commercial pilot licence

Density altitude

The density altitude is the altitude relative to standard atmospheric conditions at which the air density would be equal to the indicated air density at the place of observation. Pressure altitude and density altitude are altitudes in aviation.

See Pressure altitude and Density altitude

Exponential function

The exponential function is a mathematical function denoted by f(x).

See Pressure altitude and Exponential function

Flight level

In aviation, a flight level (FL) is an aircraft's altitude using the International Standard Atmosphere, expressed in hundreds of feet or metres. Pressure altitude and flight level are altitudes in aviation.

See Pressure altitude and Flight level

The foot (standard symbol: ft) is a unit of length in the British imperial and United States customary systems of measurement.

See Pressure altitude and Foot (unit)

Inch of mercury

Inch of mercury (inHg and ″Hg) is a non-SI unit of measurement for pressure.

See Pressure altitude and Inch of mercury

International Standard Atmosphere

The International Standard Atmosphere (ISA) is a static atmospheric model of how the pressure, temperature, density, and viscosity of the Earth's atmosphere change over a wide range of altitudes or elevations.

See Pressure altitude and International Standard Atmosphere

National Oceanic and Atmospheric Administration

The National Oceanic and Atmospheric Administration (abbreviated as NOAA) is a US scientific and regulatory agency charged with forecasting weather, monitoring oceanic and atmospheric conditions, charting the seas, conducting deep-sea exploration, and managing fishing and protection of marine mammals and endangered species in the US exclusive economic zone.

See Pressure altitude and National Oceanic and Atmospheric Administration

Pascal (unit)

The pascal (symbol: Pa) is the unit of pressure in the International System of Units (SI).

See Pressure altitude and Pascal (unit)

Private pilot licence

A private pilot licence (PPL) or private pilot certificate is a type of pilot licence that allows the holder to act as pilot in command of an aircraft privately (not for remuneration).

See Pressure altitude and Private pilot licence

Q code

This is one of a set of articles on telegraphy. The Q-code is a standardised collection of three-letter codes that each start with the letter "Q".

See Pressure altitude and Q code

Sea level

Mean sea level (MSL, often shortened to sea level) is an average surface level of one or more among Earth's coastal bodies of water from which heights such as elevation may be measured.

See Pressure altitude and Sea level

Standard temperature and pressure

Standard temperature and pressure (STP) or Standard conditions for temperature and pressure are various standard sets of conditions for experimental measurements used to allow comparisons to be made between different sets of data.

See Pressure altitude and Standard temperature and pressure

Taylor series

In mathematics, the Taylor series or Taylor expansion of a function is an infinite sum of terms that are expressed in terms of the function's derivatives at a single point.

See Pressure altitude and Taylor series

See also

Altitudes in aviation

References

[1] https://en.wikipedia.org/wiki/Pressure_altitude

Also known as QNE.