What is the ceiling of the Class C airspace surrounding San Jose International Airport?

The ceiling of the Class C airspace surrounding San Jose International Airport is indeed 4,000 feet MSL (Mean Sea Level). Class C airspace generally extends from the surface up to a specified altitude, which is typically not above 4,000 feet MSL in many busy airport areas. This structure is designed to manage the high volume of traffic that may operate in and around the airport while providing controlled airspace for both arriving and departing aircraft.

In the context of Class C airspace, the layered structure provides an effective way to safeguard both the commercial and general aviation operations in busy urban environments while maintaining the necessary separation between aircraft. Understanding the specifics of these altitudes is crucial for pilots in order to navigate and communicate effectively, ensuring a safe and efficient flight experience in proximity to major airports such as San Jose International.