Certified Flight Instructor (CFI) Practice Exam

What defines Class E airspace?

1. Airspace between Class A and Class B

2. Controlled airspace that is not Class A, B, C, or D

3. Uncontrolled airspace above Class G

4. Special use airspace only

The correct answer is: Controlled airspace that is not Class A, B, C, or D

Class E airspace is defined as controlled airspace that is not classified as Class A, B, C, or D. This category primarily serves to provide a controlled environment for aircraft operations that aren't within the specified classifications of other airspace types, ensuring a level of regulatory oversight while allowing for various flight activities. This type of airspace can extend from either the surface or a specified altitude up to the base of Class A airspace, and it also includes airspace needed for transitioning between other controlled airspace classes. Importantly, within Class E airspace, visual flight rules (VFR) operations can occur alongside instrument flight rules (IFR) operations, often allowing for more flexibility in air navigation. The other options misrepresent the characteristics of Class E airspace. For example, it is not limited to being between Class A and Class B, nor does it exclusively apply to uncontrolled airspace above Class G. Additionally, while special use airspace has its own regulations and purposes, it does not encompass the general definition of Class E airspace. Thus, option B accurately captures the essence of Class E airspace within the broader context of airspace classification.