What Does PA Stand For?
PA stands for Pressure Altitude
Pressure Altitude (PA) refers to the altitude in the atmosphere determined by a standard reference pressure, typically 29.92 inches of mercury (Hg) at sea level. It is a critical parameter in aviation, meteorology, and engineering, as it provides a consistent measurement of altitude adjusted for atmospheric pressure variations. PA is used for aircraft performance calculations, altitude determination in flight operations, and for understanding weather patterns.
Added on 14th April 2008 | Last edited on 17th June 2025 | Edit Acronym