Title: Interpret airspace classes.
Course: Aircraft Pilot Training I (20053-I) > Section: Understanding Airport Operations

Interpretation should include the following:

- The airspace system in the United States is categorized by letter classifications from A through G, with the omission of F (which does not exist in the U.S.).
- These classes of airspace are logically arranged with regard to the conditions each pilot must meet to legally operate an aircraft in each airspace class.
- These requirements increase gradationally, with Class G airspace being the least restrictive, to Class A airspace, the most restrictive airspace.

PLT040