# F2

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{{Self reference|For the Wikipedia F2 criterion for speedy deletion, see {{slink|Wikipedia:Criteria for speedy deletion#F2}}.}}
{{wiktionary|F2}}
'''F2''', '''F.II''' or similar may refer to:
{{tocright}}

==Science and mathematics==
* F<sub>2</sub>, the chemical formula for [fluorine](/source/fluorine)
* <math>\mathbb F_2</math> or [GF(2)](/source/GF(2)), in mathematics, the Galois field of two elements
* F2, a category in the [Fujita scale](/source/Fujita_scale) of tornado intensity
* [F2 hybrid](/source/F2_hybrid), a type of crossing in classical genetics
* [F2 layer](/source/F2_layer), a stratum of the Earth's ionosphere
* [F-2 mycotoxin](/source/F-2_mycotoxin) or zearalenone, a chemical produced by fungi
* [NIST-F2](/source/NIST-F2), an atomic clock

==Motorsports==
*[Formula Two](/source/Formula_Two), a type of open-wheel formula racing category first codified in 1948.
*[FIA Formula 2 Championship](/source/FIA_Formula_Two_Championship_(2009%E2%80%932012)), a second-tier [single-seater](/source/single-seater) championship held from 2009 to 2012.
*[FIA Formula 2 Championship](/source/FIA_Formula_2_Championship), a second-tier [single-seater](/source/single-seater) championship held since 2017.

==Medicine==
* F2 or [Foundation Year 2](/source/Foundation_Year_2), part of the UK Foundation Programme for postgraduate medical practitioners
* [F-2 (drug)](/source/F-2_(drug)), a psychedelic drug
* [F2-isoprostane](/source/F2-isoprostane), a compound formed ''in vivo'' from fatty acids
* [F2 gene](/source/F2_gene), present on human chromosome 11, encodes for thrombin

==Films==
*''[F2: Fun and Frustration](/source/F2%3A_Fun_and_Frustration)'', a 2019 Indian Telugu language film starring Venkatesh and Varun Tej

==Technology==
* {{keypress|F2}}, a [function key](/source/function_key) on a computer keyboard
* F2 or [flat twin engine](/source/flat_twin_engine), a type of two-cylinder internal combustion engine
* [Anik F2](/source/Anik_F2), a Canadian geostationary communications satellite
* [Nikon F2](/source/Nikon_F2), a professional SLR camera

==Transportation==
===Aviation===
* [Fly Air](/source/Fly_Air), IATA designator F2, a Turkish private airline
* [Fieseler F2 Tiger](/source/Fieseler_F2_Tiger), a German single-seat aerobatic biplane
* [Flanders F.2](/source/Flanders_F.2), a 1911 British experimental single-seat monoplane aircraft
* [Fokker F.II](/source/Fokker_F.II), a 1919 German early airliner
* [Metropolitan-Vickers F.2](/source/Metropolitan-Vickers_F.2), a 1941 British early turbojet engine
* Boeing Customer Code of [Turkish Airlines](/source/Turkish_Airlines)

===Rail===
* [EMD F2](/source/EMD_F2), a class of GM diesel freight locomotive built in 1946
* [H&BR Class F2](/source/H%26BR_Class_F2), a class of 0-6-2T steam locomotives of the Hull and Barnsley Railway

===Road===
* [Alta F2](/source/Alta_F2), a 1952 British racing car
* [DKW F2](/source/DKW_F2), a 1930s German small car
* [Marussia F2](/source/Marussia_F2), a Russian large luxury car

=== Boat ===

* F2, the [Sydney Ferries' services to Taronga Zoo](/source/Taronga_Zoo_ferry_services)

==Military==
===Air===
* [Beechcraft F-2 Expeditor](/source/Beechcraft_F-2_Expeditor), an American twin engine reconnaissance aircraft
* [Blackburn F.2 Lincock](/source/Blackburn_F.2_Lincock), a 1928 British single-seat lightweight fighter
* [Bristol F.2 Fighter](/source/Bristol_F.2_Fighter), a 1916 British two-seat biplane fighter and reconnaissance aircraft
* [Dassault Mirage F2](/source/Dassault_Mirage_F2), a 1960s French prototype two-seat attack fighter
* [Fairey F.2](/source/Fairey_F.2), a 1917 British fighter prototype
* [Felixstowe F.2](/source/Felixstowe_F.2), a 1917 British First World War flying boat
* [Hunter F 2](/source/Hunter_F_2), a 1953 Hawker Hunter fighter aircraft variant
* [Lübeck-Travemünde F.2](/source/L%C3%BCbeck-Travem%C3%BCnde_F.2), early German reconnaissance floatplane
* [McDonnell F-2 Banshee](/source/McDonnell_F-2_Banshee), a carrier-based jet fighter aircraft of the 1950s
* [Mitsubishi F-2](/source/Mitsubishi_F-2), a Japanese fighter aircraft, based on the F-16 Fighting Falcon
* [RAF Tornado F2](/source/RAF_Tornado_F2), a long-range, twin-engine swing-wing interceptor
* [F 2 Hägernäs](/source/F_2_H%C3%A4gern%C3%A4s), a former Swedish Air Force wing

===Sea===
* {{HMS|F2}}, an F class First World War submarine of the Royal Navy
* {{USS|F-2|SS-21}}, a 1910s F-class submarine of the United States Navy
* [20 mm modèle F2 gun](/source/20_mm_mod%C3%A8le_F2_gun), a French naval gun

===Land===
* [F2 81mm Mortar](/source/F2_81mm_Mortar), an Australian weapon
* [FR F2 sniper rifle](/source/FR_F2_sniper_rifle), the standard sniper rifle of the French military
* [KMW F2](/source/KMW_F2), a German modular wheeled armoured vehicle

==Other uses==
* [F2 (classification)](/source/F2_(classification)), a wheelchair sport classification
* [F-2 visa](/source/F-2_visa), a U.S. visa type for dependents of students
* [F2Freestylers](/source/F2Freestylers), British freestyle football duo also known as The F2
* [F2 Logistics](/source/F2_Logistics), Filipino logistics company
** [F2 Logistics Cargo Movers](/source/F2_Logistics_Cargo_Movers), volleyball team owned by the logistics company of the same name
* [Formula Two](/source/Formula_Two), a type of open-wheel racing
* F2, the second [formant](/source/formant)

==See also==
* [2F (disambiguation)](/source/2F_(disambiguation))
* [FII (disambiguation)](/source/FII_(disambiguation)) <!-- because [F.II](/source/F.II) redirects here for the Fokker -->
* [F3 (disambiguation)](/source/F3_(disambiguation))
* [Fun and Frustration (disambiguation)](/source/Fun_and_Frustration_(disambiguation)), Indian film series, abbreviated F2

{{Letter-Number Combination Disambiguation}}

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Adapted from the Wikipedia article [F2](https://en.wikipedia.org/wiki/F2) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/F2?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.