uncontrolled airspace

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• Uncontrolled airspace — is an aviation term to describe airspace where an Air Traffic Control (ATC) service is not deemed necessary or cannot be provided for practical reasons. According to the airspace classes set by ICAO both class F and class G airspace are… …   Wikipedia

• uncontrolled airspace — That portion of the airspace that has not been designated as a control area, control zone, terminal control area, or transition area and within which ATC (air traffic control) has neither the authority nor the responsibility for exercising… …   Aviation dictionary

• 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. Controlled airspace exists where it is deemed… …   Wikipedia

• airspace Class F — Airspace in which both IFR (instrument flight rules) and VFR (visual flight rules) flights are permitted. All participating IFR flights receive an air traffic advisory service, and all flights receive flight information service if requested. This …   Aviation dictionary

• Airspace class — The world s navigable airspace is divided into three dimensional segments, each of which is assigned to a specific class. Most nations adhere to the classification specified by the International Civil Aviation Organization (ICAO) and described… …   Wikipedia

• airspace classification — All airspace is classified into two broad categories controlled and uncontrolled. Controlled airspace has defined dimensions within which air traffic control service is provided to IFR (instrument flight rules) and VFR (visual flight rules)… …   Aviation dictionary

• airspace Class G — In this airspace, both IFR (instrument flight rules) and VFR (visual flight rules) flights are permitted and receive flight information service if requested. This is uncontrolled airspace, and no clearances are required to operate in this… …   Aviation dictionary

• Uncontrolled decompression — refers to an unplanned drop in the pressure of a sealed system, such as an aircraft cabin and typically results from human error, material fatigue, engineering failure or impact causing a pressure vessel to vent into its lower pressure… …   Wikipedia

• National Airspace System — The National Airspace System (NAS) of the United States is one of the most complex aviation systems in the world consisting of thousands of people, procedures, facilities, and pieces of equipment that enables safe and expeditious air travel in… …   Wikipedia

• Controlled airspace — is an aviation term used to describe airspace in which ATC has the authority to control air traffic, the level of which varies with the different classes of airspace. Controlled airspace is established mainly for three different reasons: high… …   Wikipedia

• Canadian airspace — is the region of navigable airspace above the surface of the Earth that falls within a region roughly defined by the Canadian land mass, the Canadian arctic, the Canadian archipelago, and areas of the high seas.[1] Airspace is managed by… …   Wikipedia