Question

Some Class E airspace begins at an MSL altitude depicted on the charts, instead of an?

a) AGL altitude
b) IFR altitude
c) VFR altitude
d) Above sea level altitude

Answer 1

Some Class E airspace begins at an MSL altitude rather than an AGL altitude, as depicted on the charts. Class E airspace is controlled and its altitude start points affect flight regulations. It often starts at 700 or 1,200 feet AGL, or at specific MSL altitudes as charted.

Step-by-step explanation:

You asked about some Class E airspace that begins at an MSL altitude depicted on the charts. The correct answer to your question is that some Class E airspace begins at an MSL (Mean Sea Level) altitude, not an AGL (Above Ground Level) altitude. Class E airspace can extend in various layers throughout the National Airspace System, often starting either at 700 or 1,200 feet AGL or at specified MSL altitudes as charted for different regions.

Class E airspace is a type of controlled airspace which extends from either the surface or a designated altitude up to the overlying or adjacent controlled airspace. Whenever Class E airspace begins at a specified MSL altitude, it is charted with a number and 'MSL' after it, such as '5000 MSL', indicating that the airspace begins at 5,000 feet Mean Sea Level. Pilots must be aware of the altitude at which Class E airspace begins as it determines the flight regulations that apply.