ANN's Daily Aero-Term (11.10.26): Class E Airspace

From the Source

Class E Airspace Generally, if the airspace is not Class A, Class B, Class C, or Class D, and it is controlled airspace, it is Class E airspace. Class E airspace extends upward from either the surface or a designated altitude to the overlying or adjacent controlled airspace. When designated as a surface area, the airspace will be configured to contain all instrument procedures.

Originally published at aero-news.net.