Determine the pressure altitude at an airport that is 1,386 feet MSL with an altimeter setting of 29.97.

To determine the pressure altitude, you need to adjust the actual elevation of the airport for the current altimeter setting. Pressure altitude is defined as the height above standard datum plane (29.92 inches of mercury, or inHg). The formula to calculate pressure altitude is:

Pressure Altitude = (Standard Pressure - Altimeter Setting) x 1,000 + Field Elevation

Given the airport elevation of 1,386 feet MSL and an altimeter setting of 29.97 inHg, follow these steps:

1. The standard pressure at sea level is 29.92 inHg.

2. Subtract the altimeter setting from the standard pressure:

29.92 - 29.97 = -0.05 inHg.

3. Convert this difference into feet by multiplying by 1,000:

-0.05 x 1,000 = -50 feet.

4. Finally, add this value to the airport elevation:

1,386 feet + (-50 feet) = 1,336 feet.

However, for practical purposes in aviation, we typically round to the nearest available value in the given choices. The closest correct calculation of pressure altitude adjusts the airport elevation based on the