Contents
What are the different types of airspaces?
The two categories of airspace are: regulatory and nonregulatory. Within these two categories, there are four types: controlled, uncontrolled, special use, and other airspace.
What are the different classes of airspace and what are the differences?
There are five different classes of controlled airspace: A, B, C, D, and E airspace. A pilot requires clearance from ATC prior to entering Class A and B airspace, and two-way ATC communications are required before flying into Class C or D airspace.
What is one difference between Class A and Class B airspace?
All operations in US Class A airspace must be conducted under IFR. SVFR flight in Class A airspace is prohibited. Class B airspace is used to control the flow of traffic around major airports. The airspace is charted on a VFR sectional chart with a series of blue lines.
How do airspace classes work?
Airspace classes are divided into three main categories, Controlled, “Uncontrolled” and Special Use/Other. The uncontrolled airspace does not mean that anything goes, only that an air traffic controller is not monitoring and actively routing planes through those areas. Controlled space is the opposite.
What are the classes of uncontrolled airspace?
Class G airspace is uncontrolled airspace that has not been designated as Class A, B, C, D, or E. It extends from the surface to the base of the overlying Class E airspace. Typically, Class G airspace includes all of the airspace below 14,500 ft. that is not otherwise designated Class B, C, or D airspace.
What’s the difference between Class A and Class E airspace?
From 18,000 to 60,000 feet MSL, all airspace is Class A . Like Class E, it is not noted on charts because of the usual lack of terrain above 14,500 feet mean sea level (MSL.)
What do you need to know about Class B airspace?
Pilots operating under VFR in Class B airspace must have 3 SM visibility, be clear of clouds, and have a ceiling of at least 1,000ft.
What’s the difference between Class D and G airspace?
Class D is small because the controllers in the tower are using only visual means to identify and separate aircraft. At airports without a 24-hour control tower, Class D airspace usually reverts to E when the tower is closed. East of the Mississippi River, Class G airspace extends up to 1,200 feet AGL (above ground level), unless otherwise charted.