Class C AirspaceClass C is labeled on a VFR sectional chart using solid magenta lines. IFR/VFR: Both. To operate VFR inside Class C, visibility must be greater than 3 statute miles and a pilot cannot fly any closer to the clouds than 500 feet below, 1,000 feet above, and 2,000 feet horizontally.
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Class C airspace areas are designed to improve aviation safety by reducing the risk of mid-air collisions in the terminal area and enhance the management of air traffic operations therein. Aircraft operating in these airspace areas are subject to certain operating rules and equipment requirements.
Class C airspace is generally airspace from the surface to 4,000 feet above the airport elevation (charted in MSL) surrounding those airports that have an operational control tower, are serviced by a radar approach control, and have a certain number of IFR operations or passenger enplanements.
Most Class C airports are home to flight schools and small aircraft hangars as well as scheduled service by airlines. While still busy, Class C airports have less traffic than Class B, so ATC doesn't need as much space to keep them organized. Like Class B, approach control services are provided.
Class C service requires pilots to establish two-way radio communications before entering Class C airspace. If the controller responds to a radio call with, “(a/c call sign) standby,” radio communications have been established and the pilot can enter Class C airspace.
Class C airspace is designed to establish and maintain safe separation of mixed general aviation and airline traffic. It is usually upside-down wedding cake shaped and depicted on charts with two bold magenta rings along with numbers indicating the airspace floor and ceiling within each ring.
Class Charlie or Class C airspace is a busy category of controlled airspace found near mid-size airports that service both general aviation and airline traffic. The primary airport in a Class C airspace has both an operational Air Traffic Control Tower (ATCT) as well as Terminal Radar Approach Controls (TRACON).
Class C Airspace (Mandatory Radar)A shelf area with an outer radius of 10 nautical miles surrounds the core area. It extends from 1200 feet AGL to 4000 feet AGL. The airspace is depicted on charts as 2 concentric magenta circles. For example, an airport with a surface altitude of 500 feet MSL is depicted above.
Class C ArrivalIf you are not receiving flight following, around 20NM from the airport and prior to entering Class C airspace contact approach control on the frequency listed on your VFR chart. On initial contact you should provide your callsign, location, altitude, request, and the ATIS code.
Unless otherwise authorized or required by ATC, no person may operate an aircraft at or below 2,500 feet above the surface within 4 nautical miles of the primary airport of a Class C airspace area at an indicated airspeed of more than 200 knots (230 mph).
The purpose of Class C airspace is to enhance aviation safety in the terminal area and to decrease the risk of midair collisions by providing traffic separation service.
Class C Airspace OverviewClass C Airspace shows up on the map around larger airports as a solid Magenta line. They have a layer similar to class B airspace, but on a smaller scale and typically with only one other shelf.
Class Delta (also referred to as Class D) Airspace areas established around airports that have an Air Traffic Control Tower but do not provide radar services. Containing an Air Traffic Control Tower, Class D airspace areas provide services to pilots.
Aircraft not complying with the requirements may be denied access to this airspace. As described in 14 CFR 91.225, ADS-B Out performance is required to operate in:Class A, B, and C airspace.
The airspace around the busiest US airports is classified as ICAO Class B, and the primary airport (one or more) for which this airspace is designated is called Class B airport. As of January 2023, there are 37 Class B airports in the United States.