Question

When building the GPS tactical approach, what type of altitude does the GPS use for the approach, AGL or MSL?

Answer 1

The GPS tactical approach uses MSL (Mean Sea Level) altitude for the approach.

Step-by-step explanation:

The GPS tactical approach uses MSL (Mean Sea Level) altitude for the approach.

The GPS provides altitude information relative to MSL, which is a standard reference plane for measuring altitude. This means that the altitude provided by GPS is based on the distance above or below sea level.

For example, if a GPS indicates an altitude of 1000 feet, it means that the aircraft is 1000 feet above sea level.