What are the entry requirements for Class D airspace?

What are the entry requirements for Class D airspace?

• A. Establish two-way radio communications with the tower.
• B. Obtain ATC clearance before entry.
• C. No communications required; open to VFR.
• D. Must file an IFR flight plan.

Answer: (A)

Two-way radio communication with the control tower before you enter Class D and maintaining that contact while inside is the requirement that matters. The tower provides the sequencing and, if needed, instructions for traffic in this airspace, so you must be able to talk with them and hear their instructions as you enter and operate there. For VFR operations, you don't need to file an IFR flight plan or obtain an explicit clearance to enter Class D; simply establishing radio contact is the trigger that allows entry. IFR operations do require ATC clearance to operate in Class D, but the initial entry condition shown here is the two-way communication. That’s why establishing and maintaining two-way radio communications is the correct, best answer.

Two-way radio communication with the control tower before you enter Class D and maintaining that contact while inside is the requirement that matters. The tower provides the sequencing and, if needed, instructions for traffic in this airspace, so you must be able to talk with them and hear their instructions as you enter and operate there.

For VFR operations, you don't need to file an IFR flight plan or obtain an explicit clearance to enter Class D; simply establishing radio contact is the trigger that allows entry. IFR operations do require ATC clearance to operate in Class D, but the initial entry condition shown here is the two-way communication. That’s why establishing and maintaining two-way radio communications is the correct, best answer.