The upper limit of Class B airspace within 30 miles of the primary airport described is what?

The upper limit of Class B airspace within 30 miles of the primary airport described is what?

• A. 12,000 feet MSL
• B. 10,000 feet MSL
• C. 8,000 feet MSL
• D. 14,500 feet MSL

Answer: (B)

Class B airspace is organized in shelves with a fixed ceiling in most areas. The ceiling for these shelves, even out to about 30 miles from the primary airport, is typically 10,000 feet above mean sea level. This means the airspace designated as Class B ends at 10,000 feet MSL, and anything above that level around the airport falls into the next airspace class (Class E, and eventually Class A higher up). So the upper limit you memorize for Class B within that radius is 10,000 feet MSL.

Class B airspace is organized in shelves with a fixed ceiling in most areas. The ceiling for these shelves, even out to about 30 miles from the primary airport, is typically 10,000 feet above mean sea level. This means the airspace designated as Class B ends at 10,000 feet MSL, and anything above that level around the airport falls into the next airspace class (Class E, and eventually Class A higher up). So the upper limit you memorize for Class B within that radius is 10,000 feet MSL.