Certified Flight Instructor (CFI) Practice Exam

Which of the following airspace types does not have entry requirements?

1. Class C

2. Class B

3. Class E

4. Class G

The correct answer is: Class G

Class G airspace is considered uncontrolled airspace. This type of airspace does not have specific entry requirements for pilots, meaning that any aircraft, regardless of whether it is operated under visual flight rules (VFR) or instrument flight rules (IFR), can enter without needing air traffic control (ATC) clearance or communication. In contrast, Class B and Class C airspace have defined entry requirements that typically involve obtaining clearance from ATC and establishing two-way communication. Class E airspace, while it can be entered under certain conditions, often has specific requirements if it is associated with a controlled airport or if an IFR operation is intended. Therefore, Class G's unrestricted nature is what distinguishes it from the other airspace classes listed in the question.