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The physical dimensions of Class A, B, C, D, E and G airspace

What are the vertical dimensions for class A airspace?

From FL180 to FL600

How far from the coastline of the United States does class A airspace extend?

12 NM

Generally, to what altitude does class B airspace extend upward to?

10,000 feet MSL

What altitudes are included in a Mode C veil?

Surface to 10,000 feet MSL

Generally, what is the ceiling of class C airspace?

4,000 feet above airport elevation

Generally, what is the radius of the inner core of class C airspace?

5SM

Generally, what is the radius of the shelf area of class C airspace?

10SM

Generally, at what altitudes is the shelf area of class C airspace located?

1,200 feet up to 4,000 feet above airport elevation

Generally, what is the radius of the uncharted outer area of class C airspace?

20SM

Generally, what is the ceiling of class D airspace?

2,500 feet above airport elevation

If not charted otherwise, at what altitude does class E airspace begin?

14,500 feet MSL

At what altitude does class E airspace denoted on a chart as being inside the soft edge of a blue band begin?

1,200 AGL

At what altitude does class E airspace denoted on a chart as being inside the soft edge of a pink band begin?

700 AGL

Above what altitude is a transponder with Mode C capability required?

10,000 feet MSL

Discuss the requirements for a transponder with Mode C capability in class B airspace.

A transponder with Mode C capability is required inside the Mode C veil of class B airspace up to 10,000 feet, above which a Mode C transponder is always required.

Discuss the requirements for a transponder with Mode C capability in class C airspace.

A transponder with Mode C capability is required inside and above class C airspace.

When terrain exists above 10,000 feet MSL, above what altitude is a transponder with Mode C capability required?

2,500 feet AGL

What are the lower and upper altitude limits of Victor airways?

Lower: 1,200 feet AGL
Upper: Up to, but not including 18,000 feet MSL

How far on either side of centerline does a Victor airway extend?

4NM on each side

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