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Simulator qualification (FAA)
Simulator qualification is the FAA's process of certifying flight simulators under 14 CFR Part 60 so pilots can earn training credit in a device rather than an aircraft.
Singapore Airlines
Singapore Airlines (SIA) is the flag carrier of Singapore, incorporated in 1972 when Malaysia-Singapore Airlines split, and named world's best airline at the 2026 Skytrax awards.
Singapore Airlines fleet
The Singapore Airlines fleet is the set of passenger and freighter aircraft flown by Singapore's flag carrier, with 145 passenger aircraft and one of the youngest fleets among major full-service carriers.
Singapore Airlines Flight 006
Singapore Airlines Flight 006 was a scheduled flight from Singapore to Los Angeles via Taipei whose Boeing 747 crashed on takeoff in a typhoon on October 31, 2000, killing 83 of 179 aboard.
Singapore Airshow
The Singapore Airshow is a biennial aerospace and defense exhibition at the Changi Exhibition Centre in Singapore, first held in 2008. It is regarded as Asia's largest air show.
Single European Sky
The Single European Sky (SES) is a European Union initiative, launched in 2004, to replace fragmented national airspaces with a harmonized, performance-driven air traffic management system.
Single European Sky ATM Research
Single European Sky ATM Research (SESAR) is the European Union's program for modernizing air traffic management, launched as the technological pillar of the Single European Sky.
Single-engine pusher aircraft
A single-engine pusher aircraft has its engine and propeller at the rear, pushing rather than pulling, a layout common in early aircraft and today's ultralights and UAVs.
Sir Seewoosagur Ramgoolam International Airport
Sir Seewoosagur Ramgoolam International Airport, also known as Plaisance Airport, is the sole international airport of Mauritius, located at Plaine Magnien in the island's southeast.
Situation awareness
Situation awareness (SA) is a person's perception of their environment, comprehension of its meaning, and projection of its near-future status, defined by Mica Endsley in 1995.
Situational awareness
Situational awareness is the perception and understanding of factors and conditions affecting safety in an operation, together with projecting how the situation will develop, a core aviation human-factors concept.
Six Days, Seven Nights
Six Days, Seven Nights is a 1998 American romantic adventure-comedy directed by Ivan Reitman, in which a magazine editor and a charter pilot are stranded on a deserted island, starring Harrison Ford and Anne Heche.
Sixth-generation fighter
A sixth-generation fighter is a combat aircraft intended to follow fifth-generation fighters such as the F-22 and F-35, expected to offer deeper stealth, better sensors, and crewed-uncrewed teaming.
Sknyliv air show disaster
The Sknyliv air show disaster (Скнилівська трагедія) was a 2002 crash in which a Ukrainian Su-27 fighter hit spectators at Lviv, killing 77 people, the deadliest air show accident ever.
Sky Above Clouds
Sky Above Clouds is a series of seven oil paintings made by Georgia O'Keeffe between 1960 and 1965, depicting clouds as seen from an airplane window.
Sky King
Sky King is an American radio and television adventure series about an Arizona rancher-pilot who flew his Cessna, the Songbird, to catch criminals, airing from 1946.
Sky marshal
A sky marshal, also known as a flight marshal or in-flight security officer, is an armed officer who travels covertly on commercial flights to protect against hijacking and terrorism.
SkyDrive (company)
SkyDrive Inc. is a Japanese eVTOL aircraft manufacturer in Toyota City, founded by Tomohiro Fukuzawa in 2018 and known for Japan's first crewed eVTOL flight in 2019.
Skyguide
Skyguide is the Swiss air navigation service provider, almost entirely owned by the Swiss Confederation, managing civil and military air traffic over Switzerland from control centers in Geneva and Zurich.
Skyleader
Skyleader is a Czech brand of two-seat ultralight and light-sport aircraft, also known as Jihlavan Airplanes, built in Jihlava, Czech Republic, with over 400 sold worldwide.
Skyliner
The Skyliner (スカイライナー) is Keisei Electric Railway's reserved-seat express train between Narita International Airport and central Tokyo, running since 1978 and reaching 160 km/h, the fastest in Japan outside the Shinkansen.
SkyMiles
SkyMiles is the frequent-flyer loyalty program of Delta Air Lines, launched in 1981 and renamed SkyMiles in 1995. Membership is free and miles do not expire.
Skyports (company)
Skyports Infrastructure is a London-based company, founded in 2018, that designs and operates vertiports for eVTOL air taxis, including a Dubai network with Joby Aviation.
SkyTeam
SkyTeam, also known as SkyTeam Alliance, is one of the three major global airline alliances, founded in 2000 by Aeromexico, Air France, Delta, and Korean Air.
Skytrax
Skytrax, formerly Inflight Research Services, is a British air transport research organization founded in London in 1989 that rates airlines and airports from 1 to 5 stars.
SkyWest Airlines
SkyWest Airlines is an American regional airline headquartered in St. George, Utah. Founded in 1972, it is the largest in the United States, flying for United, Delta, American, and Alaska.
Sleeve valve
A sleeve valve is an engine valve mechanism using a ported sliding sleeve instead of poppet valves, most used in British aero engines of the 1930s and 1940s.
Slingsby Aviation
Slingsby Aviation, originally Slingsby Sailplanes, was a British aircraft manufacturer at Kirkbymoorside, North Yorkshire, best known for wooden training gliders from the 1930s and the T.67 Firefly military trainer.
Slingsby Hengist
The Slingsby Hengist was a British wooden troop-carrying military glider of the Second World War, of which eighteen were built, fourteen serving with the Royal Air Force.
Slingsby T.21
The Slingsby T.21, known in RAF service as the Sedbergh TX Mk.1, is a British two-seat, open-cockpit training glider first flown in 1944 that trained Air Training Corps cadets until the mid-1980s.