Class B Airspace

Class B Airspace

Class B airspace is the most complex type of controlled airspace.  The purpose of Class B airspace to create a safe area for busy airports, that is free of most VFR general aviation traffic. a. Definition. Generally, that airspace from the surface to 10,000 feet MSL...
Class A Airspace

Class A Airspace

3−2−2. Class A Airspace a. Definition. Generally, that airspace from 18,000 feet MSL up to and including FL 600, including the airspace overlying the waters within 12 nautical miles off the coast of the 48 contiguous States and Alaska; and designated international...
What is Controlled Airspace?  (AIM 3-2-1)

What is Controlled Airspace? (AIM 3-2-1)

What is controlled airspace?  After all, a lot of “controlled” airspace is actually not under direct control at all, right? Well let’s start with the definition right out of the Aeronautical Information Manual (AIM): 3−2−1. General a. Controlled...