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What is the normal vertical limit of Class C airspace above the primary airport?

  1. 2,000 feet

  2. 3,000 feet

  3. 4,000 feet

  4. 5,000 feet

The correct answer is: 4,000 feet

Class C airspace generally extends from the surface up to a defined altitude, typically 4,000 feet above the airport elevation. This structure allows for the necessary separation of aircraft during takeoff and landing while accommodating the traffic expected in the vicinity of a primary airport. The dimensions of Class C airspace are designed to ensure that arriving and departing aircraft have sufficient vertical separation from other aircraft, thus promoting safety in busy airspace. Typically, within the vicinity of a major airport, vertical limits are standardized, and the top of the Class C airspace is set at 4,000 feet above the airport’s elevation. Understanding the layout and vertical limits of Class C airspace is essential for pilots operating in or near busy air traffic environments, as it aids in maintaining situational awareness and compliance with air traffic control directives.