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ADIZ boundaries for the United States and Canada as of 2018. ADIZ boundaries for Alaska. The Air Defense Identification Zone of North America is an air defense identification zone (ADIZ) that covers the airspace surrounding the United States and Canada – in which the ready identification, location, and control of civil aircraft over land or water is required in the interest of national ...
In addition to Nellis AFB, areas outside of the current NTTR land area are used for related activities, e.g., about 1,107 sq mi (2,870 km 2) of the former military range land (relinquished 1942, e.g. ranges 46–56, [10] and c. 1953) is under the Nellis "Area A" airspace that is a Military Operations Area (MOA). [11]
An air defense identification zone (ADIZ) is a region of airspace in which a country tries to identify, locate, and control aircraft in the interest of national security. [1] It is declared unilaterally [2] and may extend beyond a country's territory to give the country more time to respond to possibly hostile aircraft. [3]
UTTR is currently the largest contiguous block of over-land supersonic-authorized restricted airspace in the contiguous United States. The range, which has a footprint of 2,675 square miles (6,930 km 2 ) of ground space and over 19,000 square miles (49,000 km 2 ) of air space — about four-fifths the area of West Virginia —is divided into ...
Its mission is to provide a flexible and realistic "battle space" to support training, testing, and tactics development, for which it controls the airspace over 12,000 square nautical miles, 7,000 of which are shared with civilian aircraft. [4]
Pilots must also receive clearance to enter the Class B airspace but Visual Flight Rules may be used, unlike in Class A airspace. Class B airspace corresponds to the area formerly known as a Terminal Control Area or TCA. [6] Class C airspace reaches from the surface to 4,000 ft. AGL above the airport which it surrounds.
Class D airspace is generally cylindrical in form and normally extends from the surface to 2,500 feet (760 m) above the ground. Airspace within the given radius, but in surrounding class C or class B airspace, is excluded. Class D airspace reverts to class E or G during hours when the tower is closed, or under other special conditions. [9]
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. Unless otherwise authorized ...