Which airspace is typically represented by solid cranberry colored rings on aeronautical charts?

Which airspace is typically represented by solid cranberry colored rings on aeronautical charts?

• A. Class B
• B. Class D
• C. Class C
• D. Class E

Answer: (C)

On aeronautical charts, the color and line style used for airspace boundaries shows what class of airspace you’re in. The solid cranberry (magenta) rings indicate Class C airspace. This usually surrounds a busy airport with an operating control tower and an approach control facility. You’ll see two rings: a tighter inner core from the surface up to about 4,000 feet above the airport, and an outer shelf that starts higher (around 1,200 feet AGL) and extends out to about 10 nautical miles. Entry requires establishing two-way radio communication with ATC before you enter, and a functioning transponder with altitude reporting (Mode C) is required within Class C. This differs from other classes, such as Class B shown by solid blue lines and generally surrounding the busiest airports with different entry controls, or Class D shown by dashed blue lines, while Class E around airports may be depicted by shading rather than solid rings.

On aeronautical charts, the color and line style used for airspace boundaries shows what class of airspace you’re in. The solid cranberry (magenta) rings indicate Class C airspace. This usually surrounds a busy airport with an operating control tower and an approach control facility. You’ll see two rings: a tighter inner core from the surface up to about 4,000 feet above the airport, and an outer shelf that starts higher (around 1,200 feet AGL) and extends out to about 10 nautical miles. Entry requires establishing two-way radio communication with ATC before you enter, and a functioning transponder with altitude reporting (Mode C) is required within Class C. This differs from other classes, such as Class B shown by solid blue lines and generally surrounding the busiest airports with different entry controls, or Class D shown by dashed blue lines, while Class E around airports may be depicted by shading rather than solid rings.