Short 360 — British twin-engined commuter turboprop Short 360 A compact encyclopedia entry on the Short 360, a British twin-engined turboprop commuter airliner built by Short Brothers in Belfast and used widely for regional and utility roles.
Shrewsbury railway station Principal railway station serving Shrewsbury, Shropshire. Opened in 1848 and Grade II listed. A regional hub managed by Transport for Wales with services to Wales, the Midlands and…
Sidewinding: a specialized snake locomotion for loose and slippery substrates Sidewinding Sidewinding is a distinctive form of snake locomotion used on sand, mudflats and other unstable surfaces; it minimizes slipping by using static contact points and produces characte…
Siemens C651 — second-generation EMU for Singapore's MRT Siemens C651 The Siemens C651 is the second-generation electric multiple unit used on Singapore's North South and East West MRT lines, introduced in the mid-1990s and built by Siemens in Austri…
Sikorsky S-76: Medium Twin-Engine Utility Helicopter Sikorsky S-76 A medium-sized twin-engine helicopter by Sikorsky, introduced in the late 1970s for corporate, offshore, emergency and military transport duties; produced in several variants and w…
Silver Street railway station, Edmonton (North London) Silver Street railway station Suburban railway station in Edmonton, North London. Location, layout, history, services and local significance, with connections towards Liverpool Street and neighbouring stations.
Simei MRT station (EW3) — East West Line station in Singapore Simei MRT station Simei MRT (EW3) is an elevated East West Line station serving the Simei residential estate in Tampines, Singapore. It connects local buses, schools, shops and forms part of the cit…
Single-track railway Single track (rail) A single-track railway is a line where trains in both directions share one track. This article covers design, signalling and operational methods, safety arrangements, capacity effe…
SJ T21: Swedish diesel-hydraulic locomotive (originally T2) SJ T21 The T21 (originally T2) is a mid-20th century Swedish diesel-hydraulic locomotive type used by Statens Järnvägar and private lines for branch-line duties; built by MaK and Swedish…
Skateboard: Design, History, Styles, and Cultural Impact Skateboard A skateboard is a small, wheeled platform used for transportation and sport. This article explains its parts, history, major styles, cultural role, competitions, and safety conside…
Ski lift: types, operation, history and uses Ski lift A ski lift is a powered transport system that moves people up and down slopes. This article explains common types, how they work, their history, safety considerations, and broader…
Škoda Fabia — compact family car from Škoda Auto Škoda Fabia The Škoda Fabia is a B-segment supermini produced by Škoda Auto since 1999. Compact, practical and available in several body styles, it has evolved through three generations and re…
Škoda Octavia: long-running compact family car from Škoda Auto Škoda Octavia The Škoda Octavia is a compact family car produced since 1996. Known for spacious interior, practical estate body, multiple generations, performance and hybrid variants, it is cent…
Škoda Roomster — Compact MPV (2006–2015) Škoda Roomster A compact multi-purpose vehicle by Škoda Auto produced 2006–2015. Known for versatile interior layout and a panel-van Praktik variant; production ended as buyers shifted to SUVs li…
Škoda Superb: overview, generations, variants and significance Škoda Superb Large family and executive car by Czech manufacturer Škoda Auto since 2001, offered as liftback or estate (Combi) with petrol/diesel options, spacious interior and versions includi…
Škoda Yeti: compact crossover SUV by Škoda Auto (2009–2017) Škoda Yeti Compact crossover introduced in 2009 by Škoda Auto, noted for its practical interior and distinctive boxy styling; facelifted in 2013 and succeeded by the Karoq in 2017.
Slave ship (transatlantic transport of enslaved people) Slave ship Cargo vessels adapted to carry enslaved people across the Atlantic, known for cramped, deadly conditions during the 'Middle Passage' and central to the transatlantic slave trade.
Sled (sledge, sleigh): design, history and uses Sled A sled is a simple vehicle for travel over ice and snow. This article outlines common forms, parts, historical development, recreational and practical uses, and distinctions among…
Sleeping car (railway sleeper) Sleeping car A sleeping car, or sleeper, is a railway carriage fitted with beds or berths to allow comfortable overnight travel. Types range from basic couchettes to private suites and modern e…
Smuggling Smuggling is the illegal movement of goods, people, information or substances across borders to evade laws, taxes, or prohibitions. It affects economies, public health and security…
SNCF Class BB 22200 electric locomotives SNCF Class BB 22200 Dual-voltage Bo-Bo electric locomotives built by Alsthom for SNCF (1976–1986). Polycurrent design allowed operation on 1.5 kV DC and 25 kV AC lines for mixed passenger and freight…
SNCF Class BB 61000 (Vossloh G1206) diesel locomotives SNCF Class BB 61000 A class of 23 four‑axle diesel locomotives built 2002–2005 by Vossloh to the G1206 design for SNCF freight operations, numbered 61001–61023 and operated as 461001–461023.
SNCF Class BB 7200 electric locomotives SNCF Class BB 7200 A class of 1.5 kV DC Bo′Bo′ electric locomotives built for SNCF in the late 20th century, part of the 'Nez Cassé' family and used for both passenger and freight service across Fran…
Snodland railway station Local railway station in Snodland, Kent, on the Medway Valley Line. Serves the town and riverside communities with regular local services and modest passenger facilities.
Snowmobile A motorized vehicle for traveling on snow and ice, characterized by a continuous track and front skis; used for recreation, work, transport, and search and rescue in snowy environm…
SOCATA TB-30 Epsilon The SOCATA TB-30 Epsilon is a French two-seat military primary trainer aircraft. Built in Tarbes, it serves several air forces and is valued for simple, economical basic flight ins…
Solar car A vehicle that uses onboard photovoltaic cells to convert sunlight into electricity to power an electric motor. Primarily experimental and educational, used in competitions and res…
Solar Impulse — Swiss Solar‑Powered Long‑Endurance Aircraft Solar Impulse Solar Impulse is a Swiss research and demonstration program that built solar‑powered aircraft to show long‑endurance, zero‑fuel flight and achieved the first solar circumnavigation…
Somerset MRT Station (NS23) — Orchard Road transit hub Somerset MRT station Underground North–South Line station serving central Orchard Road in Singapore. Key access point for shopping malls, pedestrians and city commuters; notable for its short link to D…
Sonoma County Transit Public bus network serving Sonoma County, California, connecting communities such as Santa Rosa and Petaluma and providing inter-county service to San Rafael in Marin County.
South Eastern and Chatham Railway (SECR): history, routes and legacy South Eastern and Chatham Railway Overview of the South Eastern and Chatham Railway (SECR), a working union of two companies that managed mainline, suburban and cross-Channel services in Kent from 1899 until the 19…
South Eastern Trains Publicly operated British train company that ran the South Eastern Passenger Rail Franchise from November 2003 until April 2006, succeeding Connex and preceding the privately run S…
South London line Inner-London rail route on the London Overground providing through services between Clapham Junction and Highbury & Islington, mostly on a high viaduct and located in Travelcard Zo…
South Quay DLR station (Isle of Dogs, London) South Quay DLR station Docklands Light Railway station on the southern shore of the South Dock, Isle of Dogs. Elevated platforms over a dock channel, step-free access, frequent services to Canary Wharf a…
South Western Railway (train operating company) South Western Railway is a UK train operator serving London Waterloo and a large network across the south-west of England, owned by FirstGroup and MTR and including the Island Line…
Southampton Central railway station Principal railway station for Southampton city centre: layout, services, history, connections and key destinations including London, Portsmouth and cross‑country routes.
Southampton Corporation Tramways No. 45 (Southampton 45) Southampton Corporation Tramways 45 Open‑top tram built in 1903 by Hurst Nelson. Served Southampton 1903–1949; purchased for preservation and now operates at Crich Tramway Village. Important early example of British…
Southbury railway station, Enfield (North London) Southbury railway station Suburban London Overground station in the Borough of Enfield (Travelcard Zone 5), serving the Seven Sisters branch of the Lea Valley lines and located near Middlesex University's E…
Southeastern (train company) Southeastern (SE Trains Limited) is the UK government-owned operator for commuter and regional rail services in southeast London, most of Kent and parts of East Sussex since Octobe…
Southern Cross Station — Melbourne rail hub and redeveloped transport terminal Southern Cross Station Major inner-city railway terminus in Melbourne, Australia, serving regional V/Line services and local connections; redeveloped in the early 2000s and renamed from Spencer Street St…
Southern Railway Name applied to several unrelated railways and operators worldwide, notably in Great Britain, the United States and India; may denote historic companies, present-day operators, or…
Southern Railway (UK): 1923–1948 British railway company Southern Railway (UK) One of Britain’s 'Big Four' (1923–1948). The Southern Railway linked London with Channel ports, Kent and the south-west, notable for suburban electrification, boat trains and engin…
Southgate tube station Southgate is a Piccadilly line station in north London, noted for its 1930s circular design by Charles Holden. It lies between Arnos Grove and Oakwood in Travelcard Zone 4 and is a…
Southwest Chief: Amtrak’s Chicago–Los Angeles Long-Distance Passenger Train Southwest Chief The Southwest Chief is Amtrak’s long-distance passenger service between Chicago and Los Angeles, traversing plains, mountains and desert across ten states on a roughly 2,265-mile r…
Space Launch System (SLS) — NASA's super heavy‑lift launch vehicle Space Launch System Overview of NASA's Space Launch System: design, key components, development history, missions in the Artemis program, and how SLS differs from commercial launchers.
Space Shuttle (NASA reusable spacecraft) Space Shuttle The Space Shuttle was NASA's reusable crewed spacecraft system (1981–2011) that carried astronauts, satellites, and station modules to low Earth orbit and returned a winged orbiter…
Space Shuttle Atlantis (OV-104) Space Shuttle Atlantis NASA's Space Shuttle Atlantis (OV-104) is the fourth operational orbiter, a reusable spacecraft used for satellite deployment, space station assembly, and crewed missions; now reti…
Space Shuttle Buran (OK-1K1) Space Shuttle Buran Buran (OK-1K1) was the Soviet Union's reusable orbiter developed in the 1970s–80s. It completed one automated orbital flight in 1988, the program was later cancelled, and the flown…
