Where does US airspace begin and end?


Where does US airspace begin and end? Class A airspace is generally the airspace from 18,000 feet (~3.4 miles, 5.5 km) mean sea level (MSL) up to and including flight level (FL) 600 (~11.4 miles, 18.3 km), including the airspace overlying the waters within 12 nautical miles (NM) (~13.8 miles, 22.2 km) of the coast of the 48 contiguous states and Alaska.


At what altitude does airspace start?

Figure 15-1. Airspace profile. Class A airspace is generally the airspace from 18,000 feet mean sea level (MSL) up to and including flight level (FL) 600, including the airspace overlying the waters within 12 nautical miles (NM) of the coast of the 48 contiguous states and Alaska.


What are the four types of airspace used in the United States?

Within these two categories, there are four types:
  • Controlled.
  • Uncontrolled.
  • Special use.
  • Other airspace.


Where does US airspace end?

Class A airspace is generally the airspace from 18,000 feet (~3.4 miles, 5.5 km) mean sea level (MSL) up to and including flight level (FL) 600 (~11.4 miles, 18.3 km), including the airspace overlying the waters within 12 nautical miles (NM) (~13.8 miles, 22.2 km) of the coast of the 48 contiguous states and Alaska.


What is the most restricted airspace in the US?

It houses the president of the United States and his administration along with highly protected national intelligence. In fact, ever since the 9/11 terrorist attacks, the entire DC area is considered National Defense Airspace (NDA) and is the most restricted airspace in the country.


What is the ceiling of US airspace?

In most areas of the United States, class E airspace extends from 1,200 feet (370 m) above ground level (AGL) up to but not including 18,000 feet (5,500 m) MSL, the lower limit of class A airspace.


Do US planes fly over Russian airspace?

WASHINGTON — Unable to fly through Russian airspace because of the war in Ukraine, U.S. airlines are stepping up a lobbying campaign on Capitol Hill and at the White House to address what they say is a growing problem: They are losing business to foreign competitors who can take passengers between the United States and ...


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