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What type of airspace is Class B known as?

Class B Airspace Class B, or Bravo, airspace surrounds the nation's busiest and largest airports. The main airport that a Class B area has been designated for is considered the primary airport. There can also be other smaller airports within Class B, which are designated as secondary airports.



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Class Bravo airspace (Class B) is that airspace surrounding the nation's busiest airports. Class B airspace supports both Instrument Flight Rules (IFR) and Visual Flight Rules (VFR) operations within.

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Class B is a class of airspace in the United States which follows International Civil Aviation Organization (ICAO) airspace designation. Class B airspace areas are designed to improve aviation safety by reducing the risk of midair collisions in the airspace surrounding airports with high-density air traffic operations.

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The top number represents the ceiling of Class B airspace in hundreds of feet MSL. For example, if the top number is 120, it means the ceiling of Class B for that section is 12,000 feet MSL. The altitudes are inclusive, so if you're flying in that section at 12,000 feet MSL, you're in Class B.

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You must receive official clearance. Also, pilots must hold a minimum of a private pilot certification to enter Class B airspace. Sport pilots, recreational pilots, and student pilots are not authorized to operate in Class B airspace.

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A Class B Airspace VFR Transition Route is defined as a specific flight course depicted on a TAC for transiting a specific Class B airspace. These routes include specific ATC-assigned altitudes, and pilots must obtain an ATC clearance prior to entering Class B airspace on the route.

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B - Economy/Coach – Usually an upgradable fare to Business. C - Business Class. D - Business Class Discounted. E - Shuttle Service (no reservation allowed) or Economy/Coach Discounted. F - First Class.

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Class B airspace — Unrestricted at or above 10,000 feet msl, 250 kias below 10,000 feet msl. Beneath Class B or in VFR corridor through Class B — 200 kias. Procedure turn — 200 kias.

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Class B Airspace, indicated by a solid blue line. Class B airspace is shown with a solid blue line around major airports in circles radiating outward.

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Automatic Dependent Surveillance–Broadcast (ADS–B) is an advanced surveillance technology that combines an aircraft's positioning source, aircraft avionics, and a ground infrastructure to create an accurate surveillance interface between aircraft and ATC.

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Radio Procedures for Class B Airspace Unlike Class C airspace, a simple acknowledgement by ATC is not sufficient for you to enter Class B airspace. You must also receive clearance and a unique transponder squawk code to enter.

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You must receive official clearance. Also, pilots must hold a minimum of a private pilot certification to enter Class B airspace. Sport pilots, recreational pilots, and student pilots are not authorized to operate in Class B airspace.

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Operating Rules and Pilot/Equipment Requirements. Regardless of weather conditions, an ATC clearance is required prior to operating within Class B airspace. Pilots should not request a clearance to operate within Class B airspace unless the requirements of 14 CFR Sections 91.131, 91.215, and 91.225 are met.

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