What is the minimum MSL altitude required to reach an outlying field that is 10 miles away with an elevation of 100 feet?

To determine the minimum Mean Sea Level (MSL) altitude required to safely reach an outlying field situated 10 miles away with an elevation of 100 feet, you need to consider the obstacle clearance criteria mandated by aviation regulations. One crucial aspect is the need to maintain a certain altitude over the terrain or obstacles along the route.

In this case, the minimum altitude above ground level (AGL) that is typically required is often 500 feet, but for calculations, we often consider a safe margin for any potential obstructions between the departure point and the destination. Therefore, the calculation involves combining the elevation of the field with the required minimum altitude plus any additional factors depending on the situation.

Given that the outlying field is at 100 feet elevation and maintaining a safe altitude above that level, you would determine the altitude as follows:

1. Start with the elevation of the field: 100 feet.

2. Add the required safety margin (which can vary, but let's use 500 feet as a common reference).

3. Therefore, you would calculate: 100 feet + 500 feet = 600 feet AGL.

4. To convert this to MSL, we must account for the elevation of the departure area, which, for this