Class A may refer to:
Communications technology
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Class-A amplifier
In electronics, power amplifier classes are letter symbols applied to different power amplifier types. The class gives a broad indication of an amplifier's characteristics and performance. The classes are related to the time period that the active ...
, a category of electronic amplifier
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Class A network, in Internet technology, a type of large network
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Class A television service
The class A television service is a system for regulating some low-power television (LPTV) stations in the United States. Class A stations are denoted by the broadcast callsign suffix "-CA" (analog) or "-CD" (digital), although very many analog -C ...
, a system for regulating low power stations in the United States
Sports
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Class A (baseball)
Class A, also known as Single-A and sometimes as Low-A, is the fourth-highest level of play in Minor League Baseball in the United States, below Triple-A, Double-A, and High-A. There are 30 teams classified at the Single-A level, one for each ...
, a level of American Minor League Baseball
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Class A (classification), a Paralympic wheelchair fencing classification
Transportation
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Class A airfield
Class A airfields were World War II military installations constructed to specifications laid down by the British Air Ministry Directorate-General of Works (AMDGW). Intended for use by heavy bombers and transports, they were the standard air ba ...
, a type of World War II British military installation
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Class A surface
In automotive design, a class A surface is any of a set of freeform surfaces of high efficiency and quality. Although, strictly, it is nothing more than saying the surfaces have curvature and tangency alignment – to ideal aesthetical reflection ...
, in automotive design
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Milwaukee Road class A
The Milwaukee Road Class "A" was a class of high-speed, streamlined 4-4-2 "Atlantic" type steam locomotives built by the American Locomotive Company (ALCO) from 1935 to 1937 to haul the Milwaukee Road's ''Hiawatha'' express passenger trains. Num ...
, a class of steam locomotives
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Norfolk and Western Railway class A
The Norfolk and Western A was a class of 43 2-6-6-4 steam locomotives built by the railroad's own Roanoke Shops between 1936 and 1950 and operated until the late 1950s. The locomotives hauled fast and heavy freight trains for the railroad and only ...
, a class of steam locomotives
* Class A, a type of commercial
driver's license in the United States
In the United States, driver's licenses are issued by each individual state, territory, and the District of Columbia rather than by the federal government due to federalism. Drivers are normally required to obtain a license from their state of r ...
* Class A, an ICAO
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 bel ...
* Class A, a type of
motorhome
A motorhome (or motor coach) is a type of self-propelled recreational vehicle (RV) which offers mobile living accommodation.
Features
Motorhomes usually have sleeping spaces for two to eight people. Each sleeping space is either fixed or conv ...
Other uses
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''Class A'' (novel), a 2004 ''CHERUB'' novel by Robert Muchamore
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Class A drug
These drugs are known in the UK as ''controlled drugs'', because this is the term by which the act itself refers to them. In more general terms, however, many of these drugs are also controlled by the Medicines Act 1968, there are many other dru ...
, a classification of drugs controlled by the UK Misuse of Drugs Act
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Class A office space
An office is a space where an organization's employees perform administrative work in order to support and realize objects and goals of the organization. The word "office" may also denote a position within an organization with specific dut ...
, a Building Owners and Managers Association category
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Library of Congress Classification:Class A -- General Works
* Class A, a
stellar classification
In astronomy, stellar classification is the classification of stars based on their stellar spectrum, spectral characteristics. Electromagnetic radiation from the star is analyzed by splitting it with a Prism (optics), prism or diffraction grati ...
* Class A, a retired type of United States
Army Service Uniform
The Army Service Uniform (ASU) is a military uniform worn by United States Army personnel in situations where formal dress is called for. It can be worn at most public and official functions. Over history, a number of different non-combat service ...
* Class A foams, a type of
foam used in firefighting
See also
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A class (disambiguation)
A class or A-class may refer to:
Locomotives
* CIÉ A class or CIE 001 Class, a 1955 class of Co-Co diesel locomotives used by Córas Iompair Éireann (The Irish Transport Company)
* NZR A class (1873), a class of steam tank locomotives operate ...
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Class B (disambiguation) Class B may refer to:
* Class B (baseball), a defunct class in minor league baseball in North America
* Class B (classification), a Paralympic wheelchair fencing classification
* Class B drug, in British law
* Class B share, a “class” of comm ...
{{disambiguation