← All explained questions · Airspace and Operating Requirements
Which equipment/communication combination is required to operate in Class C airspace?
Choices
✓ Two-way radio, Mode C transponder, and ADS-B Outcorrect
Class C requires establishing two-way comms plus transponder and ADS-B Out.
Two-way radio only
That is sufficient for Class D but not Class C.
An ATC clearance to enter
An explicit clearance is a Class B requirement, not Class C.
No equipment is required
Class C has specific equipment requirements.
Why
Class C requires two-way communication established before entry, a Mode C transponder, and ADS-B Out.
FAA source: AIM 3-2-4 / 14 CFR 91.13014 CFR 91.215 / 91.225browse the reference library →
This is taught in Busy Airports: Class B, C and D — study the lessons free, then practice with grading and mastery tracking.
Original study question written for this course — representative of FAA knowledge-test topics, not an actual current FAA exam question.