A1, A-1, A01 or A.1. may refer to:

Education

* A1, the Basic Language Certificate of the

Common European Framework of Reference for Languages The Common European Framework of Reference for Languages: Learning, Teaching, Assessment, abbreviated in English as CEFR or CEF or CEFRL, is a guideline used to describe achievements of learners of foreign languages across Europe and, increasing ...

* Language A1, the former name for "Language A: literature", one of the

IB Group 1 subjects The Group 1: Studies in language and literature (previously First Language) subjects of the IB Diploma Programme refer to the student's first language ( native language or otherwise best language). Three courses are available: ''Language A: lit ...

* A1, a secondary school subdivision in the Congolese education system * A1, a

baccalauréat The ''baccalauréat'' (; ), often known in France colloquially as the ''bac'', is a French national academic qualification that students can obtain at the completion of their secondary education (at the end of the ''lycée'') by meeting certain ...

series in the education system of some parts of France * A1, a baccalaureate in the Gabonese education system, see

Education in Gabon Education in Gabon is largely based on the French educational system. On the federal level, it is regulated by two Ministries: the Ministry of Education, which is in charge of Pre-school through to High School, and the Ministry of Higher Education ...

* A1, the highest category of Qualified Flying Instructor in the Central Flying School of the UK Royal Air Force

Grades

* A1, a grade for the

Leaving Certificate A secondary school leaving qualification is a document signifying that the holder has fulfilled any secondary education requirements of their locality, often including the passage of a final qualification examination. For each leaving certifica ...

, a qualification in the education system of Ireland * A1, the highest obtainable grade for the

Sijil Pelajaran Malaysia The Sijil Pelajaran Malaysia (SPM), or the Malaysian Certificate of Education, is a national examination taken by all fifth-form secondary school students in Malaysia. It is the equivalent of the General Certificate of Secondary Education (G ...

examination in Malaysia * A1, a grade for the Senior Secondary Certificate Examination in Nigeria, see

Education in Nigeria Education in Nigeria is overseen by the Federal Ministry of Education. The local authorities take responsibility for implementing state-controlled policy regarding public education and state schools. The education system is divided into Kinder ...

* A1, a grade for the Singaporean GCE 'O' Level, an examination in the education system of Singapore * A-1, an

Academic grading in Pakistan Academic grading in Pakistan is based on a percentage system. Lower secondary education Lower secondary education contains the Grade 6 to Grade 10 classes. Grading Formula 45 Grading of Division WES – World Education Services Upper seconda ...

commonly used in the education system of Pakistan

Entertainment

* sound operator, a member of a theatre crew commonly designated A1

Broadcasting

A-One (TV channel) A-One Hip-Hop Music Channel was a Russian music television channel broadcasting hip hop music. The channel was broadcast on the satellite ABS-2 (FTA), on the "Tricolor TV" platform, and in 850 cable packages. History After briefly being known ...

, a Russian music channel * A1 TV channel (Macedonia) *

A1 Report A1 News Channel (formerly TV Ballkan, A1 TV, A1 Report, and since closed) was an all news private television station in Tirana, Albania Albania ( ; sq, Shqipëri or ), or , also or . officially the Republic of Albania ( sq, Republika e S ...

, a television station in Albania * America One, an American television network * A 1, see

List of radio stations in Austria and Liechtenstein This is a list of radio stations operating in Austria. The Austrian regulatory agency (''Kommunikationsbehörde Austria'') acts as frequency assignment authority. Austria Public broadcasting * ORF (''Österreichischer Rundfunk'') ** Österreich 1 ...

* A1, a promotional name for CHIN (AM) radio in Canada * A1, a Slovenian radio network owned by Radiotelevizija Slovenija * A-1 Detective Agency, a fictional detective agency in the radio series ''

I Love a Mystery ''I Love a Mystery'' is an American radio drama series that aired 1939–44, about three friends who ran a detective agency and traveled the world in search of adventure. Written by Carlton E. Morse, the program was the polar opposite of Morse's ...

Film

* '' A-1 Headline'', a 2004 Hong Kong film * ''A 001, operazione Giamaica'' ('' Our Man in Jamaica''), a 1965 Italian adventure film directed by Ernst R. von Theumer * ''A1'', a 1999 Syrian film, see List of Syrian films * ''A1'' (2019 film), Indian Tamil film ;Companies * A1 Film Company, a Burmese cinema company * A-1 Pictures, a Japanese animation studio

Games

* A1 Games, an American video game publisher for the PlayStation; see List of PlayStation games (A–L) * ''A1 – Slave Pits of the Undercity'', a component of '' Scourge of the Slave Lords'', and adventure module for the ''Dungeons & Dragons'' role-playing game * Larsen's Opening, a chess move, A01 in ECO code * A1, a square on a

chessboard A chessboard is a used to play chess. It consists of 64 squares, 8 rows by 8 columns, on which the chess pieces are placed. It is square in shape and uses two colours of squares, one light and one dark, in a chequered pattern. During play, the bo ...

Music and dance

* Aone Beats or Aone, music producer * A1, a part in

contra dance choreography :''This article supplements the main Contra dance article.'' Contra dance choreography specifies the dance formation, the figures, and the sequence of those figures in a contra dance. The figures repeat, ideally, in a graceful flowing pattern, a ...

* A-1 Sound Studios, a recording studio owned by

Herb Abramson Herbert C. Abramson (November 16, 1916 – November 9, 1999) was an American record executive, record producer, and co-founder of Atlantic Records. Life and career Abramson was born in 1916 to a Jewish family in Brooklyn. He studied to be a dent ...

* A-1, an American rap group behind the album Mash Confusion *

A-One (band) A-One is a mandopop group created in 2008 under the label Hong Kong Kiss-star entertainment Beijing company (香港Kiss Star娱乐北京有限公司). Names A number of names have been used for this group. * A-One (昆虫一族) * A-One (昆虫 ...

, a Mandopop group * A1 (band), a British-Norwegian boy band * Floyd "A1" Bentley, record producer and reality TV star (from Love & Hip Hop: Hollywood) *

A1 x J1 A1 x J1 (real names Phineas Waweru and Joshua Somerkun) are a British hip hop duo. They released their debut single " Latest Trends" in February 2021, which charted at number 2 in the UK and was remixed by Aitch and A Boogie wit da Hoodie. ...

, a British hip hop duo

Albums

* ''A1'', an album by

Ertuğ Ergin Ertuğ Ergin (May 18, 1970 in Adapazarı – December 14, 2012 in Adapazarı) was a Turkish alternative pop-rock singer-songwriter. Discography * 2005 : ''Hayatım'' (İstanbul Plak İstanbul Plak is a music publishing company of Turkey, establi ...

* ''A1'', an album by Tony Cetinski * ''

A One ''A One'' is the sixteenth full-length studio album recorded by Japanese singer Ayumi Hamasaki. It was released on April 8, 2015 (exactly 17 years after her debut) by Avex Trax. It reached #4 on the Oricon charts. Background and promotion On ...

'', an album by Ayumi Hamasaki * ''A1'' (album), a 2002 album by Norwegian band A1

Publications

* ''A1'' (comics), a comics anthology * ''

A-1 Comics ''A-1 Comics'' is a Golden Age of Comic Books, Golden Age comics publication that began in 1944 and ended in 1955, lasting 139 issues. Only the first 17 issues carried the title "A-1" on the cover. Issues #18 and up used the feature as the book tit ...

'', a 1944–1955 Golden Age comics publication * ''A1—The Great North Road'', a book by

Paul Graham (photographer) Paul Graham (born 1956) is a British fine-art and documentary photographer. He has published three survey monographs, along with 17 other publications. His work has been exhibited in the Italian Pavilion of the 49th Venice Biennale (2001), ...

Finance

* A1 or A-1, two

investment grade In investment, the bond credit rating represents the credit worthiness of corporate or government bonds. It is not the same as an individual's credit score. The ratings are published by credit rating agencies and used by investment professional ...

s for bonds * A1, a country risk rating assigned by Compagnie Francaise D’assurance Pour Le Commerce Exterieur (Coface)

Food

* A.1. Sauce * A1, a colour grade used in

shrimp marketing Shrimp are marketed and commercialised with several issues in mind. Most shrimp are sold frozen and marketed based on their categorisation of presentation, grading, colour, and uniformity. Presentation The main forms of presentation are ''hea ...

Military

A-1 Skyraider The Douglas A-1 Skyraider (formerly known as the AD Skyraider) is an American single-seat attack aircraft in service from 1946 to the early 1980s. The Skyraider had an unusually long career, remaining in front-line service well into the Jet Ag ...

, a United States military attack aircraft * A-1 flying jacket, the predecessor of the A-2 flying jacket * Company A-1, an outfit in the Texas A&M Corps of Cadets * Svea Artillery Regiment, a Swedish Army regiment * A-1 (code) was the designation for a code used by the United States Navy during World War I * A1, a designation of military staff in the

continental staff system A military staff or general staff (also referred to as army staff, navy staff, or air staff within the individual services) is a group of officers, enlisted and civilian staff who serve the commander of a division or other large military ...

* A-1, a grade of Republic of China List of orders, decorations and medals of the Republic of China#General Armed Forces medals * Forces A1, a naval force in the Battle of Crete, see Crete order of battle * A-1, Brazilian Air Forces designation for the AMX International AMX aircraft * Kampfgeschwader 53, from its historic ''Geschwaderkennung'' code with the Luftwaffe in World War II

Politics and government

Americas

* A-1 visa, a non-immigrant United States visa for governmental officials * A1, an electoral alliance in Suriname, see List of political parties in Suriname

Asia

* A1, a class of South Korean visa * A-1, a classification in the

status of Indian cities The ''classification of Indian cities'' is a ranking system used by the Government of India to allocate House Rent Allowance (HRA) to public servants employed in cities in India. HRA is also used by the Indian Revenue Service (IRS) to provide inc ...

Europe

* A1, a rank in the European Civil Service * A1, a town planning use class in England and Wales * A1, a racial classification by law enforcement in England and Wales

Places

* A1 Mine Settlement, Victoria, Australia *

Red Bull Ring The Red Bull Ring is a motorsport race track in Spielberg, Styria, Austria. The race circuit was founded as Österreichring (translation: Austrian Circuit) and hosted the Austrian Grand Prix for 18 consecutive years, from to . It was later s ...

(formerly ''A1''), a motorsport circuit in Spielberg, Austria * List of A1 roads * Zone A1, a zone in the Greek Alonissos Marine Park in the North Aegean Sea

Science and mathematics

Astronomy

* A1, a class of star, see

stellar classification In astronomy, stellar classification is the classification of stars based on their spectral characteristics. Electromagnetic radiation from the star is analyzed by splitting it with a prism or diffraction grating into a spectrum exhibiting the ...

* "A1" subobject designations, including: ** NGC 3603-A1

Biology

* A1 broth, a substance used to detect fecal coliforms * ATC code A01 ''Stomatological preparations'', a subgroup of the Anatomical Therapeutic Chemical Classification System * Combretastatin A1, a potent cytotoxic agent *

HLA-A1 HLA-A1 (A1) is a human leukocyte antigen serotype within HLA-A "A" serotype group. The serotype is determined by the antibody recognition of α1 subset of HLA-A α-chains. For A1, the alpha "A" chain are encoded by the HLA-A allele group an ...

, a human leukocyte antigen serotype * Proanthocyanidin A1, an A type proanthocyanidin *

Primary auditory cortex The auditory cortex is the part of the temporal lobe that processes auditory information in humans and many other vertebrates. It is a part of the auditory system, performing basic and higher functions in hearing, such as possible relations ...

, the region of the cerebral cortex where sound is processed * Vitamin A1, the animal form of vitamin A * A1, a segment of the

anterior cerebral artery The anterior cerebral artery (ACA) is one of a pair of cerebral arteries that supplies oxygenated blood to most midline portions of the frontal lobes and superior medial parietal lobes of the brain. The two anterior cerebral arteries arise from ...

* The first

anal vein Anal may refer to: Related to the anus *Related to the anus of animals: ** Anal fin, in fish anatomy ** Anal vein, in insect anatomy ** Anal scale, in reptile anatomy *Related to the human anus: ** Anal sex, a type of sexual activity involving ...

in the Comstock-Needham system of insect wing vein naming *

Noradrenergic cell group A1 Noradrenergic cell group A1 is a group of cells in the vicinity of the lateral reticular nucleus of the medullary reticular formation that label for norepinephrine in primates and rodents. They are found in the ventrolateral medulla in conjun ...

* A1, a mating type of ''

Phytophthora infestans ''Phytophthora infestans'' is an oomycete or water mold, a fungus-like microorganism that causes the serious potato and tomato disease known as late blight or potato blight. Early blight, caused by ''Alternaria solani'', is also often called "po ...

'', the cause of potato blight

Earth sciences

* A1, a landslide classification factor * A-1, a class in the AASHTO Soil Classification System

Mathematics

* A¹ homotopy theory, a concept related to algebraic topology * A1, an 1844 paper by mathematician Hermann Grassmann * A₁, the alternating group on a set with one only element

Sports

Leagues or divisions

* A1 Ring, the former name for the

, a motorsport circuit in Spielberg, Austria * A1, a

climbing grade In rock climbing, mountaineering, and other climbing disciplines, climbers give a grade to a climbing route or boulder problem, intended to describe concisely the difficulty and danger of climbing it. Different types of climbing (such as spo ...

* A1, a ranking in Keirin track cycling * Class A1 (baseball), a defunct classification within Minor League Baseball

Competition

* A1 (classification), an amputee sport classification *

A1 Grand Prix A1 Grand Prix (A1GP) was a "single-make" open-wheel auto racing series that ran from 2005 until 2009. It was unique in its field in that competitors solely represented their nation as opposed to themselves or a team, the usual format in most f ...

, a motorsport racing series *

A-1 Liga The Hrvatski Telekom Premijer liga ( en, Hrvatski Telekom Premier League, ), also known as HT Premijer liga or simply Premijer liga, is the first tier level men's professional basketball league in Croatia. It began in 1991, following the breakup ...

, the top basketball league in Croatia * HEBA A1, the top basketball league in Greece * Phase A1, a phase in a combined driving equestrian competition

Individuals

* A-1 (born 1977), Canadian professional wrestler

Technology

A1 paper size ISO 216 is an international standard for paper sizes, used around the world except in North America and parts of Latin America. The standard defines the "A", "B" and "C" series of paper sizes, including A4, the most commonly available paper size ...

(59.4×84.1 centimetres or 23.4×33.1 inches) * A-1, the first series of Disney's Audio-Animatronics figures * A-1, an alternative name for

KS 150 KS 150 is a Gas Cooled Reactor using Heavy Water as a moderator (GCHWR) nuclear reactor design. A single example, A-1, was constructed at the Bohunice Nuclear Power Plant in Jaslovské Bohunice, Czechoslovakia. The power plant suffered a series ...

, a nuclear reactor in Czechoslovakia, decommissioned in 1979 * A.1 scale, the first formalised atomic time scale in the International Atomic Time standard

Computing

* A-1, a programming language that was a successor to the A-0 System written by Grace Hopper in the 1950s * A1, codename for Windows Live OneCare * A1, a class of computer security specified in the Trusted Computer System Evaluation Criteria *

Acer Aspire One Acer Aspire One is a line of netbooks first released in July 2008 by Acer Inc. Many characteristics of a particular model of Acer Aspire One are dictated by the CPU platform chosen. Initial models were based on the Intel Atoms. Later, model ...

netbook computer

Commercial brands and companies

* A1 Superlink, an Australian Internet service provider merged in 2000 into the

Froggy (ISP) Froggy was an Australian business, that primarily operated an ISP amongst other things, established and owned by entrepreneur Karl Suleman. At the time of its collapse the company had around 30,000 customers. Froggy was originally two separate IS ...

* A-1 Supply, a former name of American gaming machine manufacturer

International Game Technology International Game Technology PLC (IGT), formerly Gtech S.p.A. and Lottomatica S.p.A., is a multinational gambling company that produces slot machines and other gambling technology. The company is headquartered in London, with major offices in ...

* A1 Telekom Austria, an Austrian mobile network operator, and its subsidiaries **

A1 Slovenija A1 Slovenija is a telecommunications company operating the second largest mobile network in Slovenia. Prior to April 2017, the company was known as Si.mobil. History The company was established in December 1997 and began operating in March 1999 a ...

, the second largest telecommunications company in Slovenia ** A1 Bulgaria, mobile network operator in Bulgaria ** A1 Hrvatska, mobile network operator in Croatia ** A1 Belarus, mobile network operator in Belarus **

A1 Srbija A1 Srbija d.o.o. (formerly ''Vip mobile'') is a Serbian mobile network operator owned by A1 Telekom Austria Group. As of 2020, it is the third largest mobile telephony operator with market share of 25.67%. History On 1 December 2006, the mobilk ...

, mobile network operator in Serbia **

A1 Macedonia A1 Macedonia DOO Skopje is a telecommunications company in North Macedonia owned by A1 Telekom Austria Group. A1 offers broadband internet, cable and terrestrial television, mobile telephony and landline. History A1 Macedonia (then known as on ...

, mobile network operator in North Macedonia

Electronic products

* Canon A-1, a 35 mm SLR camera manufactured from 1978 to 1985 *

Canon XH-A1 This is a list of camcorders manufactured under the Canon brand. Canon Cinema EOS digital camcorders * Canon EOS-1D C * Canon EOS C70 * Canon EOS C100 * Canon EOS C100 Mark II * Canon EOS C200/C200B * Canon EOS C300 * Canon EOS C300 Mark II * Ca ...

, a handheld prosumer HDV camcorder released in 2007 * Minolta Dimage A1, a digital camera produced in 2003 * Sony HVR-A1, the prosumer version of the

Sony HDR-HC1 The Sony HDR-HC1, introduced in mid-2005 (MSRP US$1999), is the first consumer HDV camcorder to support 1080i. The CMOS sensor has resolution of 1920x1440 for digital still pictures and captures video at 1440x1080 interlaced, which is the resoluti ...

camcorder, which was introduced in 2005 * AVM A1-Card, an ISDN card produced by German company

AVM GmbH AVM is a consumer electronics company founded in 1986 in Berlin, Germany. The company produces communications, networking devices such as DSL, ISDN, Wireless and VoIP products. It had sales of €580 million in 2020 with 840 employees. It is w ...

* A1 VSTi, a 2002 synthesizer software program produced by Waldorf Music * Xiaomi Mi A1, a smartphone released in 2017, part of series Mi and Android One * Samsung Galaxy A01, a smartphone released in 2020

Vehicles and transport

Aircraft

A-1 (airship) The E class of US Navy blimps comprised a single airship, built during World War I by Goodyear as one of a group of three small blimps offered to the US government. Two were purchased for the US Navy and one for the US Army. The Navy blimps were ...

* Albastar A1, glider * Model 3 A-1, an Aeronautical Products rotorcraft, see

List of rotorcraft This is a list of rotorcraft, including helicopters, autogyros, rotor kites and convertiplanes. A A-B Helicopters * A-B Helicopters A/W 95 American Aircraft International * AAI Penetrator Aero *Aero HC-2 Heli Baby Aero-Astr ...

Cars

* A1, a tyre code * A1 Grand Prix car *

Anadol A1 Anadol was Turkey's first domestic mass-production passenger vehicle company. Its first model, Anadol A1 (1966–1975) was the second Turkish car after the ill-fated Devrim sedan of 1961. Anadol cars and pick-ups were manufactured by Otosan Oto ...

, a 1966 Turkish car * Arrows A1, a 1978 British racing car *

Audi A1 The Audi A1 (internally designated ''Typ 8X'') is a supermini car launched by Audi at the 2010 Geneva Motor Show. Sales of the initial three-door A1 model started in Germany in August 2010, with the United Kingdom following in November 2010. A f ...

, a supermini automobile produced from 2010 * Audi Quattro A1, a 1983 rally car * Chery A1 * Scania A1, a 1901 car *

Toyota A1 The A1 was the first prototype passenger car built by the company that became Toyota. It was redesigned and put into production as Toyota's first production cars, the AA sedan and the AB cabriolet. These were succeeded by the similar AE, AC and B ...

, a 1935 car prototype *

A1 registration plate In 1903, the Motor Car Act, which mandated the registration of motor vehicles, became law. It took effect on 1 January 1904, though the first number plates were issued in late 1903. The A1 registration plate was issued by London county council ...

, a UK vehicle registration plate * A1, a Volkswagen Group A platform * A-1, a 1939

Buick Roadmaster The Buick Roadmaster is an automobile that was built by Buick from 1936 until 1942, from 1946 until 1958, and then again from 1991 until 1996. Roadmasters produced between 1936 and 1958 were built on Buick's longest non-limousine wheelbase and sh ...

Series 81C used by Norwegian royalty

Maritime

* A1 (shipping), a symbol indicating shipbuilding quality * Sea Area A1, a designation in the Global Maritime Distress Safety System

Surface vessels

* A-1 lifeboat * , the name of multiple US Navy ships * , an Argentine Navy auxiliary ship

Submarines

* , a British A-class submarine of the Royal Navy * A1 type submarine, a type of Japanese Navy submarine * , a Royal Norwegian Navy submarine

Motorcycles

* A1, a

Haden (motorcycle) A.H. Haden Motorcycles was a British motorcycle marque from Birmingham. Haden was originally a bicycle-making business in Hockley, Birmingham, begun in the late 1880s, after the safety bicycle was introduced. The business passed from George J ...

frame * A1, a

Motosacoche Motosacoche was founded in 1899, by Henri and Armand Dufaux, in Geneva, Switzerland. Motosacoche was once the biggest Swiss motorcycle manufacturer, known also for its MAG (Motosacoche Acacias Genève) engines, used by other European motorcycle ...

motorcycle * A-1, a 1976 Alligator (motorcycle) * Automatic A1, a Tomos motorcycle * A1 Samurai, see List of Kawasaki motorcycles

Roads

* Highways designated ''A1'' in several countries; see List of A1 roads

Spacecraft

Satellites

A-001 A-001 was the second abort test of the Apollo spacecraft. Objectives Mission A-001 was the second in the series of tests conducted to demonstrate that the launch escape system could safely remove the command module under critical abort condition ...

, the second abort test of the Apollo spacecraft *

Anik A1 Anik may refer to: * Anik (satellite), satellites launched by Canadian telecommunications company Telesat * Anik, Iran, a village in South Khorasan Province, Iran * Anik Mountain * Anik Bissonnette, a Canadian ballet dancer * Anik Jean (born 1977) ...

, a Canadian satellite * Aussat (Optus) A1, a 1985 Australian telecommunications satellite * Orbcomm A1, a 1997 American low Earth orbit communications satellite * Palapa A1, the first 1976 Indonesian Palapa satellite * Superbird A1, a satellite put into orbit by an Ariane 4 launch on 1 December 1992 * A1, a designation for the French satellite

Astérix (satellite) ''Astérix'' or A-1 (initially conceptualized as FR.2 or FR-2) is the first French satellite. It was launched on 26 November 1965 by a Diamant A rocket from the CIEES launch site at Hammaguir, Algeria. With ''Astérix'', France became the sixth ...

Rockets

* A1, a model of German Aggregate Series Rocket from World War II * Hermes A-1, a rocket in the

Hermes project Project Hermes was a missile research program run by the Ordnance Corps of the United States Army from November 15, 1944, to December 31, 1954, in response to Germany's rocket attacks in Europe during World War II. The program was to determin ...

Saturn A-1 Saturn A-1, studied in 1959, was projected to be the first version of Saturn I and was to be used if necessary before the S-IV liquid hydrogen second stage became available. The first stage, proposed for the Juno V rocket, but finally used fo ...

, a 1959 American rocket *

Scout A-1 The Scout family of rockets were American launch vehicles designed to place small satellites into orbit around the Earth. The Scout multistage rocket was the first orbital launch vehicle to be entirely composed of solid fuel stages. It was also t ...

, a 1965 American rocket

Fictional spacecraft

* Alpha-One spacecraft, a fictional spacecraft in the film '' Buzz Lightyear of Star Command: The Adventure Begins''

Trains and public transit

* A1 Steam Locomotive Trust, a charitable trust *

Ayrshire Bus Owners (A1 Service) Ayrshire Bus Owners (A1 Service) Ltd was a prominent independent co-operative bus operator in Ayrshire, Scotland. Based in Ardrossan, it provided local bus services around the towns of Ardrossan, Saltcoats, Stevenston, Kilwinning, Irvine and ...

, a bus operator in Scotland * Bavarian A I, an 1844 German steam locomotive model *

LB&SCR A1 class The London, Brighton and South Coast Railway (LB&SCR) A1 class is a class of British steam locomotive. Designed by William Stroudley, 50 members of the class were built in 1872 and between 1874 and 1880, all at Brighton Works. The class has re ...

, a class of locomotives designed by Stroudley and known as the ''Terriers'' * LNER Gresley Classes A1 and A3, a locomotive class designed by Sir Nigel Gresley, including the ''Flying Scotsman'' *

LNER Thompson Class A1/1 The LNER Class A1/1 consisted of a single 4-6-2 "Pacific" express passenger locomotive rebuilt in 1945 from an A1 class locomotive, by Edward Thompson. It was intended as the prototype of a new design of pacific locomotives improving the A4 d ...

, the rebuild of 4470 ''Great Northern'' by Edward Thompson *

LNER Peppercorn Class A1 The London and North Eastern Railway (LNER) Peppercorn Class A1 is a type of express passenger steam locomotive. Forty-nine original Peppercorn Class A1s were built to the design of Arthur Peppercorn (who was the last Chief Mechanical Eng ...

, a Pacific locomotive designed by Arthur Peppercorn * NCC Class A1, a 1901 Irish 4-4-0 passenger steam locomotives * Nishi-magome Station, a Japanese subway station * PRR A1, an American PRR steam locomotive *

Prussian A 1 This list gives an overview of the locomotives and railcars that were in the Prussian state railways. Also included are the locomotives of the Grand Duchy of Hesse State Railways (''Grossherzoglich Hessischen Staatseisenbahnen'') and the Prussia ...

, a 1907 German Prussian railbus * RER A1, a rapid transit line in France * SP&S Class A1, a 1907 steam locomotives class * Tel Aviv–Jerusalem railway, built on the “A1 Route” * Type A1 or ''California combination'', an Electric tram type *

0-2-2 An 0-2-2, in the Whyte notation for the classification of steam locomotives by wheel arrangement, is one that has two coupled driving wheels followed by two trailing wheels, with no leading wheels. The configuration was briefly built by Robert S ...

, the UIC classification for the Whyte notation of locomotive wheel arrangements