restricted area

restricted area

[ri′strik·təd ′er·ē·ə]

(navigation)

An airspace of defined dimensions identified by an area on the surface of the earth within which the flight of aircraft is subject to restrictions.

An area within which vessels may be navigated subject to prohibitions with respect to anchoring, trawling, fishing, and so on.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

restricted area

An airspace of defined dimensions, above the land areas or territorial waters of a State, within which the flight of aircraft is restricted in accordance with certain specified conditions (ICAO). The flights in these areas are not wholly prohibited but are subject to specified restrictions. Activities within these areas must be confined because of their nature or the limitations imposed upon aircraft operations that are not a part of those activities, or both. Restricted areas denote the existence of unusual, often invisible, hazards to aircraft, such as artillery firing, aerial gunnery, or guided missiles. Penetration of restricted areas without authorization from the using or controlling agency may be extremely hazardous to the aircraft and its occupants. Aircraft may not fly in a restricted area, the particulars of which have duly published, except in accordance with the conditions of the restrictions or by permission of the state over whose territory the areas are established. Restricted airspace is depicted on the en route charts as shown in the illustration.

An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved