Pressure altitude

Definitions

• The altitude indicated when the altimeter setting window (barometric scale) is adjusted to 29.92. This is the altitude above the standard datum plane, which is a theoretical plane where air pressure (corrected to 15 oC) equals 29.92 "Hg. Pressure alt
• The height above the standard pressure level of 29.92 "Hg. It is obtained by setting 29.92 in the barometric pressure window and reading the altimeter.
• Altitude above the standard 29.92" Hg plane.
• The altitude indicated when the altimeter setting window (barometric scale) is adjusted to 29.92. This is the altitude above the standard datum plane, which is a theoretical plane where air pressure (corrected to 15 oC) equals 29.92 "Hg. Pressure altitude is used to compute density altitude, true altitude, true airspeed, and other performance data.
• The height above the standard pressure level of 29.92 in. Hg. It is obtained by setting 29.92 in the barometric pressure window and reading the altimeter.
• The altitude indicated when the altimeter setting window (barometric scale) is adjusted to 29.92. This is the altitude above the standard datum plane, which is a theoretical plane where air pressure (corrected to 15oC) equals 29.92 in. Hg. Pressure altitude is used to compute density altitude, true altitude, true airspeed, and other performance data.

References

• Airplane Flying Handbook, Federal Aviation Administration, 2021
• Helicopter Flying Handbook, Federal Aviation Administration, 2019
• Instrument Flying Handbook, Federal Aviation Administration, 2014
• Powered Parachute Flying Handbook, Federal Aviation Administration, 2007
• Rotorcraft Flying Handbook, Federal Aviation Administration, 2000
• Weight-Shift Control Aircraft Flying Handbook, Federal Aviation Administration, 2008