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

or GF(2), 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 Zearalenone (ZEN), also known as RAL and F-2 mycotoxin, is a potent estrogenic metabolite produced by some ''Fusarium'' and ''Gibberella'' species. Specifically, the ''Gibberella zeae ,'' the fungal species where zearalenone was initially detected, ...

or zearalenone, a chemical produced by fungi * NIST-F2, an atomic clock

Medicine

* F2 or

Foundation Year 2 A foundation doctor is a grade of medical practitioner in the United Kingdom undertaking the Foundation Programme, a two-year, general postgraduate medical training programme which forms the bridge between medical school and specialist/general pr ...

, 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 __NOTOC__ The Flanders F.2 was a 1910s British experimental single-seat monoplane aircraft designed and built by Richard Leonard Howard-Flanders and later converted to a two-seater as the Flanders F.3. Development Howard Flanders had been a ...

, 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 The H&BR Class F2 (LNER Class N12) was a class of 0-6-2T steam locomotives of the Hull and Barnsley Railway. It was designed by Matthew Stirling and nine locomotives were built by Kitson & Co. in 1901. Equipment The locomotives had domeless ...

, a class of 0-6-2T steam locomotives of the Hull and Barnsley Railway

Road

* Alta F2, a 1952 British racing car * DKW F2, a 1930s German small car *

Marussia F2 The Marussia F2 is a full-size luxury SUV designed and made by Marussia Motors and Valmet Automotive according to Marussia, it can be used as a mobile command center, as a military vehicle or as an emergency vehicle. The concept car was shown on ...

, 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 The Blackburn F.2 Lincock was a British single-seat lightweight fighter produced by Blackburn Aircraft Limited. Design and development In 1928 Blackburn designed and built a private venture lightweight biplane fighter powered by an Armstrong S ...

, 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 The following is a list of variants of the Hawker Hunter The Hawker Hunter is a transonic British jet-powered fighter aircraft that was developed by Hawker Aircraft for the Royal Air Force (RAF) during the late 1940s and early 1950s. I ...

, 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 The McDonnell F2H Banshee (company designation McDonnell Model 24) is an American single-seat carrier-based jet fighter aircraft deployed by the United States Navy and United States Marine Corps from 1948 to 1961. A development of the FH Phan ...

, 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 The L16 81mm mortar is a British standard mortar used by the Canadian Army, British Army, and many other armed forces. It originated as a joint design by the UK and Canada. The version produced and used by Australia is named the F2 81mm Mortar, w ...

, 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 The KMW F2 is a family of modular wheeled armoured vehicles, manufactured by KMW. The F2 is designed as a supplement to the Fennek and is intended to provide a maximum of mobility, protection and growth potential. The vehicle will be available in ...

, a German modular wheeled armoured vehicle

Other uses

* F2 (classification), a wheelchair sport classification *

F-2 visa In the United States, the F visas are a type of non-immigrant student visa that allows foreigners to pursue education (academic studies and/or language training programs) in the United States. F-1 students must maintain a full course of study. F-1 ...

, 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, Filipino logistics company ** F2 Logistics Cargo Movers, volleyball team owned by the logistics company of the same name * Formula Two, a type of open-wheel racing * F2, the second formant