F2, F.II or similar may refer to:

Science and mathematics

* F₂, the chemical formula for

fluorine Fluorine is a chemical element with the symbol F and atomic number 9. It is the lightest halogen and exists at standard conditions as a highly toxic, pale yellow diatomic gas. As the most electronegative reactive element, it is extremely reacti ...

\mathbb F_2

GF(2) (also denoted \mathbb F_2, or \mathbb Z/2\mathbb Z) is the finite field of two elements (GF is the initialism of ''Galois field'', another name for finite fields). Notations and \mathbb Z_2 may be encountered although they can be confused with ...

, in mathematics, the Galois field of two elements * F2, a category in the Fujita scale of tornado intensity *

F2 hybrid An F1 hybrid (also known as filial 1 hybrid) is the first filial generation of offspring of distinctly different parental types. F1 hybrids are used in genetics, and in selective breeding, where the term F1 crossbreed may be used. The term is somet ...

, a type of crossing in classical genetics * F2 layer, a stratum of the Earth's ionosphere * F-2 mycotoxin or zearalenone, a chemical produced by fungi * NIST-F2, an atomic clock

Medicine

* F2 or Foundation Year 2, part of the UK Foundation Programme for postgraduate medical practitioners *

F-2 (drug) F-2, or 6-(2-aminopropyl)-5-methoxy-2-methyl-2,3-dihydrobenzofuran, is a lesser-known psychedelic drug. F-2 was first synthesized by Alexander Shulgin. In his book '' PiHKAL'', the minimum dosage is listed as 15 mg, and the duration unknown. ...

, a psychedelic drug * F2-isoprostane, a compound formed ''in vivo'' from fatty acids *

F2 gene Thrombin (, ''fibrinogenase'', ''thrombase'', ''thrombofort'', ''topical'', ''thrombin-C'', ''tropostasin'', ''activated blood-coagulation factor II'', ''blood-coagulation factor IIa'', ''factor IIa'', ''E thrombin'', ''beta-thrombin'', ''gamma- ...

, present on human chromosome 11, encodes for thrombin

Films

*'' F2: Fun and Frustration'', a 2019 Indian Telugu language film starring Venkatesh and Varun Tej

Technology

* , a function key on a computer keyboard * F2 or

flat twin engine A flat-twin engine is a two-cylinder internal combustion engine with the cylinders on opposite sides of the crankshaft. The most common type of flat-twin engine is the boxer-twin engine, where both pistons move inwards and outwards at the same ti ...

, a type of two-cylinder internal combustion engine *

Anik F2 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 geostationary communications satellite *

Nikon F2 The Nikon F2 is a professional-level, interchangeable lens, 35mm format, 35 mm film, single-lens reflex (SLR) camera. It was manufactured by the Japanese optics company Nippon Kogaku K. K. (Nikon Corporation since 1988) in Japan from September 1 ...

, a professional SLR camera

Transportation

Aviation

Fly Air Fly Air ( tr, Fly Havayolu Taşımacılık A.Ş.) was a private airline based in Istanbul, Turkey. Originally a charter airline, it also operated scheduled services. The airline ceased operations in January 2007.Flight International 3 April 20 ...

, IATA designator F2, a Turkish private airline *

Fieseler F2 Tiger The Fieseler F2 Tiger was a German single-seat aerobatic biplane which was flown to victory in the 1934 World Aerobatics Competition (WAC) by its designer/builder Gerhard Fieseler. Design and development Gerhard Fieseler started his own com ...

, a German single-seat aerobatic biplane * Flanders F.2, a 1911 British experimental single-seat monoplane aircraft *

Fokker F.II The Fokker F.II was the first of a long series of commercial aircraft from the Fokker Aircraft Company, flying in 1919. In a biplane age, it presented a distinct clean, high-wing monoplane style that sold successfully across Europe and North Amer ...

, a 1919 German early airliner *

Metropolitan-Vickers F.2 The Metropolitan-Vickers F.2 is an early turbojet engine and the first British design to be based on an axial-flow compressor. It was an extremely advanced design for the era, using a nine-stage axial compressor, annular combustor, and a two- ...

, a 1941 British early turbojet engine

Rail

EMD F2 The EMD F2 was a freight-hauling diesel locomotive built by General Motors Electro-Motive Division between July 1946 and November 1946. It succeeded the FT model in GM-EMD's F-unit sequence, and was replaced in turn by the F3. The F2 was in m ...

, a class of GM diesel freight locomotive built in 1946 * H&BR Class F2, a class of 0-6-2T steam locomotives of the Hull and Barnsley Railway * PRR F2, a classification of Mogul steam locomotive on the

Pennsylvania Railroad The Pennsylvania Railroad (reporting mark PRR), legal name The Pennsylvania Railroad Company also known as the "Pennsy", was an American Class I railroad that was established in 1846 and headquartered in Philadelphia, Pennsylvania. It was named ...

Road

Alta F2 The Alta Car and Engineering Company was a British sports and racing car manufacturer, commonly known simply as Alta. Their cars contested five FIA World Championship races between 1950 and 1952, as well as Grand Prix events prior to this. They ...

, a 1952 British racing car * DKW F2, a 1930s German small car * Marussia F2, a Russian large luxury car

Boat

* F2, the Sydney Ferries' services to Taronga Zoo

Military

Air

Beechcraft F-2 Expeditor The Beechcraft Model 18 (or "Twin Beech", as it is also known) is a 6- to 11-seat, twin-engined, low-wing, tailwheel light aircraft manufactured by the Beech Aircraft Corporation of Wichita, Kansas. Continuously produced from 1937 to November ...

, an American twin engine reconnaissance aircraft * Blackburn F.2 Lincock, a 1928 British single-seat lightweight fighter *

Bristol F.2 Fighter The Bristol F.2 Fighter is a British First World War two-seat biplane fighter and reconnaissance aircraft developed by Frank Barnwell at the Bristol Aeroplane Company. It is often simply called the Bristol Fighter, ''"Brisfit"'' or ''"Biff"'' ...

, a 1916 British two-seat biplane fighter and reconnaissance aircraft * Dassault Mirage F2, a 1960s French prototype two-seat attack fighter *

Fairey F.2 __NOTOC__ The Fairey F.2 was a British fighter prototype in the late 1910s. It was the first aircraft designed entirely by the Fairey Aviation Company. Development The F.2 was ordered by the Admiralty in 1916 as a massive, three-seat long-ra ...

, a 1917 British fighter prototype *

Felixstowe F.2 The Felixstowe F.2 was a 1917 British flying boat class designed and developed by Lieutenant Commander John Cyril Porte RN at the naval air station, Felixstowe during the First World War adapting a larger version of his superior Felixstowe F. ...

, a 1917 British First World War flying boat * Hunter F 2, a 1953 Hawker Hunter fighter aircraft variant *

Lübeck-Travemünde F.2 The Lübeck-Travemünde F.2 was a 1910s German reconnaissance floatplane. The F.2 was an improved version of the company's earlier Lübeck-Travemünde F.1, F.1 floatplane and was the first armed aircraft built by Flugzeugwerft Lübeck-Travemünd ...

, early German reconnaissance floatplane * McDonnell F-2 Banshee, a carrier-based jet fighter aircraft of the 1950s *

Mitsubishi F-2 The Mitsubishi F-2 is a multirole fighter derived from the General Dynamics F-16 Fighting Falcon, and manufactured by Mitsubishi Heavy Industries and Lockheed Martin for the Japan Air Self-Defense Force, with a 60/40 split in manufacturing betw ...

, a Japanese fighter aircraft, based on the F-16 Fighting Falcon * RAF Tornado F2, a long-range, twin-engine swing-wing interceptor *

F 2 Hägernäs Roslagen Air Corps ( sv, Roslagens flygkår), also F 2 Hägernäs, or simply F 2, is a former Swedish Air Force air corps with the main base located on the east coast of Sweden just north of the capital Stockholm. History From 1919 the area was us ...

, a former Swedish Air Force wing

Sea

* , an F class First World War submarine of the Royal Navy * , a 1910s F-class submarine of the United States Navy *

20 mm modèle F2 gun The 20 mm modèle F2 gun is a naval defence weapon used by the French Navy. It was developed from the GIAT M693, itself derived from Hispano-Suiza HS.820. It fires the same 20×139 mm round. History The need for a newer 20 mm def ...

, a French naval gun

Land

* F2 81mm Mortar, an Australian weapon *

FR F2 sniper rifle The FR F2 (french: Fusil à Répétition modèle F2; en, Repeating Rifle, F2 model) has been the standard sniper rifle of the French military since 1986. It is designed for shooting at point targets at distances up to 800 metres. History In Augu ...

, the standard sniper rifle of the French military * KMW F2, a German modular wheeled armoured vehicle

Other uses

* F2 (classification), a wheelchair sport classification * F-2 visa, a U.S. visa type for dependents of students *

F2Freestylers The F2Freestylers, also known as The F2, are a British freestyle football duo comprising former amateur footballers Billy Wingrove and Jeremy Lynch. They are best known for their YouTube channel which has over 13 million subscribers. Early c ...

, British freestyle football duo also known as The F2 *

F2 Logistics F2 Logistics Philippines, Inc. is a Philippine logistics company based in Parañaque. It was established by Efren Uy in 2006. Services Among the services provided by F2 Logistics include warehousing, cold chain distribution, ISO tank solutions, ...

, Filipino logistics company **

F2 Logistics Cargo Movers The F2 Logistics Cargo Movers is a professional women's volleyball club in the Premier Volleyball League (PVL). The team is owned by Efren E. Uy (Chairman, President, and CEO) of F2 Logistics Philippines, Inc. Background The F2 Logistics Cargo M ...

, volleyball team owned by the logistics company of the same name * Formula Two, a type of open-wheel racing