Which class airspace requires pilots to establish two-way radio communications with ATC prior to entry?

Which class airspace requires pilots to establish two-way radio communications with ATC prior to entry?

• A. Class B
• B. Class C
• C. Class D
• D. Class E

Answer: (B)

In Class C airspace, pilots must establish two-way radio communications with ATC before entering to ensure ATC can safely sequence and separate traffic. This means you contact the appropriate ATC frequency, establish a live two-way conversation, and in most cases you’ll be assigned a discrete transponder code and any needed entry instructions before you enter the airspace. You must remain in communication while operating inside Class C. This requirement is specific to Class C’s radar-controlled environment around busy airports with approach control, which is why it’s the best answer here.

In Class C airspace, pilots must establish two-way radio communications with ATC before entering to ensure ATC can safely sequence and separate traffic. This means you contact the appropriate ATC frequency, establish a live two-way conversation, and in most cases you’ll be assigned a discrete transponder code and any needed entry instructions before you enter the airspace. You must remain in communication while operating inside Class C. This requirement is specific to Class C’s radar-controlled environment around busy airports with approach control, which is why it’s the best answer here.