![]() The configuration of each Class B airspace area is tailored for each airport and consists of a surface area and two or more layers. Vertically, the airspace is usually from the surface of the airport up to 10,000ft MSL, with some exceptions. Lateral distances of bravo airspace will vary with the local area, but will typically maintain a shape of an upside-down wedding cake. Class B Airspace surrounds those airports that have at least an operational Air Traffic Control Tower (ATCT) and Terminal Radar Approach Controls (TRACON). Class B airspace surrounds the nation’s busiest and largest airports. Since Class A airspace exends over the entire 48 contiguous states (and Alaska), there wouldn’t be anything to depict.Ĭlass B airspace is also known as Class Bravo airspace. The lateral boundaries are usually the parts that are depicted via outlines on a chart. Chart DepictionĬlass A will not be depicted on any charts. You can get more in-depth information by clicking VFR Weather Minimums. There are no specific weather requirements in Class A airspace due to all aircraft being required to be on an IFR Flight Plan. The only speed limit in Class A Airspace is to remain slower than the speed of sound, which is Mach 1. When you are operating in Class A airspace (Above 18,000ft), make sure you change your altimeter setting to standard atmospheric pressure, which is 29.92. Also, keep in mind, after Jan1st, 2020, ADS-B will be required. If you are navigating with the use of VORs, DME will be required above 24,000ft MSL. This airspace is controlled by an ARTCC (Air Route Traffic Control Center) AKA “Center”. You will need a clearance from ATC before you are permitted to enter Class A airspace. There is NO VFR flying allowed. Within Class A airspace, the aircraft must be equipped with a two-way radio (and you must remain two-way communication with ATC) and an altitude reporting transponder (Mode C). So what does that mean? In very simple terms, that means that both the pilot and aircraft will need to be instrument rated and be on an IFR flight plan. Operating Rules and Pilot/Equipment RequirementsĭME measuring Equipped Airplane (Above FL240) - could be GPSĪll person, unless otherwise authorized, must operate their aircraft IFR in Class A. This extends over the 48 contiguous states (and Alaska) and within 12nm off the coast, as well as designated international airspace beyond 12nm within areas of domestic radio navigation signal or ATC radar coverage. DimensionsĬlass A airspace generally begins at 18,000ft MSL and extends up to and including FL600, but does not include the airspace less than 1,500ft AGL. Most aircraft that fly in Class A airspace are Commercial Airlines, Corporate Airplanes, and Military Jets. Class A is airspace that is above where small aircraft fly. The easiest way to remember Class A airspace is by thinking “A for Above”. ![]() Some of the requirements can include pilot qualification requirements, weather requirements, speed requirements, aircraft equipment requirements, and others.Ĭlass A airspace is also known as Class Alpha airspace. Each type of airspace will have specific requirements that must be met in order to operate in that specific airspace. You can use various different charts to determine which airspace you are flying through. These altitudes can be labeled in one of 3 ways: Above Ground Level (AGL), Mean Sea Level (MSL), or Flight Level (FL). The vertical boundaries describe the upper and lower altitude limits. It can be as easy as just a circle around an airport but can get complex with many shapes and sizes. The lateral boundaries can be thought of are the airspace’s footprint along the ground. Each unique sector of airspace is defined by its lateral and vertical boundaries. These 4 types are Controlled, Uncontrolled, Special Use, and Other airspace. Within those 2 categories, there are 4 types of airspace. This will include Military Operations Areas (MOAs), Warning Areas, Alert Areas, and Controlled Firing Areas. Non-regulatory airspace is just used to advise or warn pilots of the operations that are conducted within the airspace. This will include Class A, B, C, D, E, G, Restricted Areas, and Prohibited Areas. Regulatory airspace has a set of specific regulations that govern that area. Airspace is divided into Regulatory or Non-Regulatory airspace. Below you will find the different airspace divided into different categories and types. The National Airspace System (NAS) is a collection of United States airspace, air navigation facilities, services, airports, aeronautical charts, services, rules and regulations, procedures and technical information as well as manpower and material.
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