Which of the following is a requirement for entering Class C airspace?

Entering Class C airspace requires obtaining ATC clearance, which is a fundamental safety measure designed to manage and coordinate the high volume of air traffic that typically operates in these controlled areas. Class C airspace usually encompasses busy airports where a significant amount of air traffic is present, including both VFR (Visual Flight Rules) and IFR (Instrument Flight Rules) operations.

The requirement for ATC clearance ensures that pilots are aware of the air traffic conditions and can operate their aircraft safely without conflicts with other aircraft. It allows controllers to provide essential traffic information and sequencing for arrivals and departures.

While there are other types of airspace where pilots might not need to establish communication with ATC, Class C is specifically designated as requiring this to maintain an orderly flow of traffic and minimize the risk of accidents. This regulation is crucial for ensuring effective management of air traffic around busy airports and contributes to overall aviation safety.