T1, T01, T.1 or T-1 may refer to:

Biology

* The first of the

thoracic vertebrae In vertebrates, thoracic vertebrae compose the middle segment of the vertebral column, between the cervical vertebrae and the lumbar vertebrae. In humans, there are twelve thoracic vertebra (anatomy), vertebrae of intermediate size between the ce ...

in the vertebral column *

Thoracic spinal nerve 1 The thoracic spinal nerve 1 (T1) is a spinal nerve A spinal nerve is a mixed nerve, which carries Motor neuron, motor, Sensory neuron, sensory, and Autonomic nervous system, autonomic signals between the spinal cord and the body. In the human bod ...

, a nerve emerging from the vertebrae * Cyclin T1, a human gene * GalNAc-T1, a human gene * Ribonuclease T₁, a fungal endonuclease *

TNM staging system The TNM Classification of Malignant Tumors (TNM) is a globally recognised standard for classifying the anatomical extent of the spread of malignant tumours (cancer). It has gained wide international acceptance for many solid tumor cancers, but is ...

, classification for a small cancer tumor * T1, longitudinal relaxation time, in

magnetic resonance imaging Magnetic resonance imaging (MRI) is a medical imaging technique used in radiology to generate pictures of the anatomy and the physiological processes inside the body. MRI scanners use strong magnetic fields, magnetic field gradients, and ...

(MRI), a measure of the time taken for spinning protons to realign with the external magnetic field

Computing

* Apple T1, a system on a chip used by Apple * T1 font, or cork encoding, a character encoding * T1, a component of the

T-carrier The T-carrier is a member of the series of carrier systems developed by AT&T Bell Laboratories for digital transmission of multiplexed telephone calls. The first version, the Transmission System 1 (T1), was introduced in 1962 in the Bell Syst ...

system for telecommunication * UltraSPARC T1, a microprocessor * AYYA T1, a smartphone developed by Rostec as part of the Ayya (smartphone) line

Transportation

Aircraft

* Raytheon T-1 Jayhawk, a jet aircraft used by the US Air Force for advanced pilot training * Lockheed T2V SeaStar, a.k.a. T1 Seastar, a carrier-capable jet trainer in the US Navy * Fuji T-1, Japan's first jet-powered trainer aircraft * Perry Beadle T.1, a 1913 British biplane fighter * Sopwith Cuckoo, a British biplane torpedo bomber of 1918

Automobiles

Bentley T-series The Bentley T-series is a luxury automobile produced by Bentley Motors Limited in the United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwe ...

, Bentley Motors model in the UK * Caparo T1, a 2006 British sports car * CWS T-1, first serially-built car manufactured in Poland * Ford T1 platform, a large SUV automobile platform *

Mercedes-Benz T1 In 1977 Daimler-Benz introduced a new van/truck (a.k.a. transporter), called Mercedes-Benz T1 internally. Other designations were series TN ("Transporter Neu") and Bremer Transporter, since the vehicle was built in the Transporter-Plant in Brem ...

, a 1977 van/truck also called a transporter *

Volkswagen Type 2 (T1) The Volkswagen Transporter, initially the Type 2, is a range of light commercial vehicles, built as vans, pickups, and cab-and-chassis variants, introduced in 1950 by the German automotive industry, automaker Volkswagen as their second mass ...

, the first generation of Volkswagen transporter

Rail

T series (Toronto subway) The T series, also known as the T-1, is the fourth series of rapid transit rolling stock used in the subway system of Toronto, Ontario, Canada. They were ordered by the Toronto Transit Commission (TTC) in 1992 and built in one production set b ...

, a subway car in Toronto, Canada *

North Shore & Western Line The North Shore & Western Line (numbered T1, coloured orange) is a commuter rail service operated by Sydney Trains, serving the North Shore, parts of the Inner West and Western Suburbs of Sydney Sydney is the capital city of the State ...

, a commuter rail line in Sydney, Australia *

Île-de-France tramway Line 1 Île-de-France tramway Line 1 (usually called simply T1) is part of the modern tram network of the Île-de-France region of France. Line T1 connects Noisy-le-Sec station and Asnières-sur-Seine with a suburban alignment running in parallel to ...

, a.k.a. T1, a tramway near Paris, France *

LSWR T1 class The London and South Western Railway T1 class was a class of fifty 0-4-4T steam tank locomotives designed for suburban passenger work by William Adams and built between 1888 and 1896. History The class were numbered 1–20, 61–80 and 358– ...

, an 1888 0-4-4T steam tank locomotives class *

Pennsylvania Railroad class T1 The Pennsylvania Railroad (PRR) class T1 duplex-drive 4-4-4-4 steam locomotives, introduced in 1942 with two prototypes and later in 1945-1946 with 50 production examples, were the last steam locomotives built for the PRR and arguably its mo ...

, a 1942 4-4-4-4 steam locomotive class *

Reading T-1 The Reading T-1 was a class of 4-8-4 "Northern" type steam locomotives owned by the Reading Company. They were rebuilt from thirty "I-10sa" class 2-8-0 "Consolidation" type locomotives between 1945 and 1947. Out of the thirty rebuilt, four survive ...

, a 1945 4-8-4 steam locomotive class *

LNER Class T1 The NER Class X (LNER Class T1) was a class of 4-8-0T tank locomotive designed by Wilson Worsdell for the North Eastern Railway. They were intended for use as powerful shunting engines to arrange and move coal wagons for loading into ships. ...

, a class of British steam locomotives *

Tatra T1 The T1 was one of the first tramcars based on the American '' Presidents' Conference Committee'' concept, produced by Czechoslovak company ČKD Tatra. 287 multiple T1 units were built between 1952 and 1958. Most of them were used in Czechoslovak ...

, a 1951 Czechoslovak tramcar * T1 (Istanbul Tram), a tram line in Istanbul, Turkey * T1 (Tram İzmir), a tram line in İzmir, Turkey * Nakano Station (Tokyo), station number T-01 in Tokyo Metro Tozai Line

Roads

* T1 road (Zambia), a road in Zambia * T1 road (Tanzania), a road in Tanzania

Racing

* Ferrari 412 T1, a 1994 Formula One car

Ships

* USS ''T-1'', several United States Navy ships * HMNZS ''Matai'' (T01), a Royal New Zealand Navy lighthouse tender of 1941 * MV ''Transpacific'' (T-1), a 1992 US oil tanker * Yugoslav torpedo boat ''T1'', a torpedo boat in the Yugoslav Navy, 1921–1941 * T1 tanker a mass-produced tanker used during and after World War II

Buses

* T1 Bristol–Thornbury, a bus route in England

Tanks and weapons

* T1 Light Tank, a U.S. prototype tank * EE-T1 ''Osório'', a 1985 Brazilian main battle tank * AC NM AE T1 mine, a Brazilian anti-tank blast mine * AP NM AE T1 mine, a Brazilian anti-personnel mine * G7a torpedo, a WWII German torpedo

Mathematics, physics and chemistry

* T1 Aquarii, a star * T1 Carinae, a star * Soyuz T-1, a 1979 space mission * T₁ space, a topological space satisfying the T₁ separation axiom *

\mathbb^1

, the 1-

torus In geometry, a torus (: tori or toruses) is a surface of revolution generated by revolving a circle in three-dimensional space one full revolution about an axis that is coplanarity, coplanar with the circle. The main types of toruses inclu ...

* Spin–lattice relaxation time in nuclear magnetic resonance and magnetic resonance imaging

Other uses

* ''

The Terminator ''The Terminator'' is a 1984 American science fiction action film directed by James Cameron, written by Cameron and Gale Anne Hurd and produced by Hurd. It stars Arnold Schwarzenegger as the Terminator, a cybernetic assassin sent back in t ...

'', the first film in the ''Terminator'' franchise * ''T1'' (album), 2018 album by Tatianna * T1 (classification), a para-cycling classification *

T1 (esports) T1 (previously known as SK Telecom T1 or SKT T1) is a South Korean esports organization operated by T1 Entertainment & Sports, a joint venture between SK Telecom and Comcast Spectacor. The team that would become SKT T1 was originally founded in ...

, a South Korean esports team * T1 General, a tax form used in Canada * T-1 visa, allowing victims of human trafficking to remain in the United States * Tour T1, an office skyscraper in La Défense, Paris, France * T1 Mall of Tallinn, shopping and entertainment centre in Tallinn, Estonia * Estonian national road 1, officially T1, connecting Tallinn and Narva * Target One, a Mesoamerican archaeological site in Honduras * T1, a tornado intensity rating on the TORRO scale * T+1, "trade date plus one day" in financial markets *

Tekken is a Japanese media franchise centered on a series of fighting games developed and published by Bandai Namco Entertainment (formerly Namco). The franchise also includes film and print adaptations. The main games in the series follow the events ...

, a 1994 fighting game * Tyler1, an American internet personality and streamer on Twitch * T1 League, a Taiwanese men's professional basketball league * vivo T1 series, the 5 smartphones manufactured by Vivo Communication Technology Co.