What is the thickness of the cloud layer if the field elevation is 3,500 feet MSL and the tops of the overcast are at 7,500 feet MSL?

To determine the thickness of the cloud layer, you need to subtract the elevation of the cloud base (field elevation) from the elevation of the cloud tops. In this scenario, the field elevation is 3,500 feet MSL (Mean Sea Level) and the tops of the overcast are at 7,500 feet MSL.

Calculating the thickness of the cloud layer involves the following formula:

Cloud Thickness = Cloud Tops - Cloud Base

Cloud Thickness = 7,500 feet MSL - 3,500 feet MSL

Cloud Thickness = 4,000 feet

The correct answer is actually 4,000 feet, which is the difference between the cloud tops and the field elevation. The provided answer of 3,500 feet does not accurately reflect this calculation and indicates a misunderstanding of how to determine the thickness of the cloud layer based on the given elevations.

This means that the original answer provided is incorrect, and it is crucial to always ensure that the arithmetic used in such calculations is accurate, as it directly affects operational decisions in aviation.