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...

categories of airspace that may overlap with classes of airspace. Classes of airspace are mutually exclusive. Thus, airspace can be "class E" and "restricted"...

the airspace classification. Controlled airspace consists of: Class A Class B Class C Class D Class E Class A airspace is generally the airspace from...

Canadian airspace is the region of airspace above the surface of the Earth within which Canada has jurisdiction. It falls within a region roughly defined...

the airspace classes set by the International Civil Aviation Organization (ICAO), the uncontrolled classes of airspace are class F and G. Class F (uncontrolled)...

with different classes of airspace. Controlled airspace usually imposes higher weather minimums than are applicable in uncontrolled airspace. It is the opposite...

this rule is class B airspace, in which ATC separates VFR traffic from all other traffic (VFR or IFR), which is why in class B airspace lower cloud clearance...

address Class E, twisted pair structured cabling system in the ISO/IEC 11801 standard Class E, an airspace class as defined by the ICAO Class E, a driver's...

a classful network Class D, an airspace class as defined by the ICAO Class D, a type of Driver's license in the United States Class D, a North American...

of Drugs Act 1971 Class C network, a type of IP address on a Classful network Class C, an airspace class as defined by the ICAO Class C, a type of driver's...

classes of airspace administered by the Federal Aviation Administration (FAA), and different flight rules apply to each class. Depending on the class...

is active, and at other times, the airspace is subject to normal VFR/IFR operation for the applicable airspace class. A few zones are activated by NOTAM;...

locomotive LNWR Class B, a British steam locomotive Class B office space, a step below Class A office space An Army Service Uniform An airspace class defined...

operation in Canadian airspace have been announced as August 10, 2023, for Class A Airspace, May 16, 2024, for Class B Airspace and Class C, D and E no sooner...

locomotives Class A, a type of commercial driver's license in the United States Class A, an ICAO airspace class Class A, a type of motorhome Class A (novel)...

Class B is a class of airspace in the United States which follows International Civil Aviation Organization (ICAO) airspace designation. Class B airspace...

controlled airspace (otherwise they would be flying VFR in IMC which is illegal).[citation needed] VFR flight is not allowed in airspace known as class A, regardless...

contact while in class D airspace. This implies that an aircraft must be equipped with at least a portable radio to fly in Class D airspace. In the UK, control...

flight rules is also required when flying in "Class A" airspace regardless of weather conditions. Class A airspace extends from 18,000 feet above mean sea level...

Class C is a class of airspace in the United States which follows International Civil Aviation Organization (ICAO) air space designation. Class C airspace...

Class D is a class of airspace in the United States which follows International Civil Aviation Organization (ICAO) air space designation. Class D airspace...

class of airspace in various airspace classification systems G-class blimp, a type of blimp built in America from 1935 Class G, a spectral class for stars...

Airport security Airspace class Area control center Brace position Civil aviation authority Control area Control zone Controlled airspace Evacuation slide...

sometimes referred to as F-P as well, for F-Production Class F, an airspace class defined by the ICAO Class F, a designation for model aircraft defined by the...

when flying in airspace where flight under VFR is not permitted; for example, in the United States, flight under VFR in class A airspaces is prohibited...

codes from countries performing air control such as NZ for New Zealand. Airspace class Geocode IATA airport code ICAO airline designators – a list of codes...

Girls, and the Politics of Appearance". International Labor and Working Class History. 69 (1): 123–142. doi:10.1017/S014754790600007X. S2CID 145145762...

In aviation, a flight information region (FIR) is a specified region of airspace in which a flight information service and an alerting service (ALRS) are...

Several high-altitude airspace security events were reported in February 2023, initially over North America, then over Latin America, China, and Eastern...

Special use airspace (SUA) is a type of special airspaces in the United States designated for operations of a nature such that limitations may be imposed...