Pressure altitude is the altitude above the standard datum plane, which is determined by the atmospheric pressure. It is crucial for flight planning and performance calculations.
The formula to calculate pressure altitude is:
\[ \text{Pressure Altitude} = (\text{Standard Pressure} - \text{Current Pressure}) \times 1000 + \text{Field Elevation} \]
Consider the following details:
Using the formula:
\[ \text{Pressure Altitude} = (29.92 - 29.10) \times 1000 + 500 = 1320 \text{ feet} \]