Special Flight Rules Area
Encyclopedia
In United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 aviation
Aviation
Aviation is the design, development, production, operation, and use of aircraft, especially heavier-than-air aircraft. Aviation is derived from avis, the Latin word for bird.-History:...

, a Special Flight Rules Area (SFRA) is a region in which the normal regulations of flight do not apply in whole or in part, especially regulations concerning airspace
Airspace
Airspace means the portion of the atmosphere controlled by a country above its territory, including its territorial waters or, more generally, any specific three-dimensional portion of the atmosphere....

 classification, altitude, course, and speed restrictions, and the like.

Examples of SFRAs include those surrounding the Grand Canyon
Grand Canyon
The Grand Canyon is a steep-sided canyon carved by the Colorado River in the United States in the state of Arizona. It is largely contained within the Grand Canyon National Park, the 15th national park in the United States...

, Ketchikan, Alaska
Ketchikan, Alaska
Ketchikan is a city in Ketchikan Gateway Borough, Alaska, United States, the southeasternmost sizable city in that state. With an estimated population of 7,368 in 2010 within the city limits, it is the fifth most populous city in the state....

, Valparaiso, Florida
Valparaiso, Florida
Valparaiso is a city in Okaloosa County, Florida, in the United States, and it is named after the Chilean city of Valparaiso. As of the 2000 census, the city population was 6,408. According to the U.S. Census Bureau's 2004 estimates, the city had a population of 6,336...

 and the Washington, D.C.
Washington, D.C.
Washington, D.C., formally the District of Columbia and commonly referred to as Washington, "the District", or simply D.C., is the capital of the United States. On July 16, 1790, the United States Congress approved the creation of a permanent national capital as permitted by the U.S. Constitution....

 metropolitan area. There are also SFRA's within the Class B airspace of Los Angeles International Airport
Los Angeles International Airport
Los Angeles International Airport is the primary airport serving the Greater Los Angeles Area, the second-most populated metropolitan area in the United States. It is most often referred to by its IATA airport code LAX, with the letters pronounced individually...

 and the Class C airspace of Anchorage International Airport and Elmendorf AFB. An SFRA is currently proposed for Luke AFB in Arizona
Arizona
Arizona ; is a state located in the southwestern region of the United States. It is also part of the western United States and the mountain west. The capital and largest city is Phoenix...

 but it has not been finalized yet.

On Nov 19, 2009 the FAA effected an SFRA in the New York City Class B airspace, motivated largely by the mid-air collision of a private general avaiation aircraft and a sightseeing helicopter ride along the Hudson River VFR corridor in the summer of 2009.
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