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Stall protection system
A stall protection system is an aircraft installation that warns of an approaching aerodynamic stall with a stick shaker and, if unheeded, prevents it with a nose-down stick pusher.
Stall warning system
A stall warning system is an aircraft installation alerting the crew as angle of attack nears the stall, ranging from simple horns to stick shakers and pushers.
Stand guidance system
A stand guidance system guides pilots taxiing onto an airport parking stand, most commonly the visual docking guidance system showing azimuth alignment and the precise stop position.
Standard instrument departure
A standard instrument departure (SID) is a preplanned IFR departure route, published in graphic form, linking a runway with the en route structure; it requires ATC clearance.
Standard terminal arrival route
A standard terminal arrival route (STAR) is a preplanned IFR air traffic control arrival procedure guiding aircraft from the en route structure to an approach fix.
StandardAero
StandardAero is an independent provider of aerospace engine maintenance, repair, and overhaul services, headquartered in Scottsdale, Arizona, and tracing its origins to a 1911 Winnipeg machine shop.
Stanley Hiller
Stanley Hiller Jr. was an American helicopter designer who at 18 built and flew the XH-44, the first successful coaxial-rotor helicopter in the United States, and founded Hiller Aircraft.
Stapleton International Airport
Stapleton International Airport, also called Stapleton Airport, served Denver, Colorado as its main airport from 1929 until it closed in 1995, replaced by Denver International Airport.
Star Alliance
Star Alliance is the world's first and largest global airline alliance, launched in 1997 by five airlines led by United and Lufthansa, with 26 member airlines and over 1,150 destinations.
Starlux Airlines
Starlux Airlines (星宇航空) is a Taiwanese full-service international airline founded in 2018 by K.W. Chang and flying commercially since January 2020, rated a Skytrax 5-Star Airline.
Starter (engine)
A starter, also known as a starter motor, is a mechanism that cranks an engine until it reaches self-sustaining speed, ranging from electric motors to air turbines.
State Airports Authority (Turkey)
The State Airports Authority (Devlet Hava Meydanları İşletmesi, DHMI) is Türkiye's state-owned enterprise that operates 50 state airports and provides all civil air traffic services.
State Aviation Service of Ukraine
The State Aviation Service of Ukraine, also known as the State Aviation Administration of Ukraine, is the country's civil aviation authority, created in 2010 and still overseeing aviation safety despite the wartime airspace closure.
State Supervisory Commission for Flight Safety
The State Supervisory Commission for Flight Safety (Gosavianadzor) was the Soviet Union's independent aviation safety and accident investigation agency, established in 1987 under the Council of Ministers.
STC Orlan-10
The Orlan-10 is a Russian tactical reconnaissance UAV produced by the Special Technology Centre of St Petersburg and used to locate targets for artillery in Syria and Ukraine.
Stealth (film)
Stealth (2005) is a Rob Cohen science fiction action film starring Josh Lucas, Jessica Biel, and Jamie Foxx as Navy pilots chasing a rogue AI drone, EDI. It grossed $76 million worldwide on a $135-138 million budget and scored 13% on Rotten Tomatoes.
Stealth aircraft
A stealth aircraft is a military airplane shaped and coated to reduce its radar, infrared, and other signatures, shrinking the range at which enemy radars can detect it.
Stealth helicopter
A stealth helicopter is a rotorcraft modified to reduce its radar, acoustic, and infrared signatures, revealed when one crashed during the 2011 raid that killed Osama bin Laden.
Step climb
A step climb is a series of altitude gains during a jet flight's cruise phase, keeping the aircraft near its most efficient altitude as fuel burn lightens it.
Sterile flight deck rule
The sterile flight deck rule, also called the sterile cockpit rule, is a US aviation regulation barring crew distractions during taxi, takeoff, landing, and flight below 10,000 feet.
Steve Fossett
Steve Fossett, also known as James Stephen Fossett, was an American businessman and adventurer who set the first solo balloon and unrefueled airplane circumnavigations before disappearing in Nevada in 2007.
Steven F. Udvar-Hazy Center
The Steven F. Udvar-Hazy Center is the National Air and Space Museum's companion facility in Chantilly, Virginia, near Dulles Airport. Opened December 15, 2003, funded largely by Steven F. Udvar-Hazy's $65 million gift, it displays over 3,000 artifacts including the SR-71 and Space Shuttle Discovery.
Stewart International Airport
Stewart International Airport (SWF), also known as Newburgh Airport, is a public and military airport in Orange County, New York, about 55 miles north of Manhattan, operated by the Port Authority.
Sting (drone)
Sting (STING) is a Ukrainian FPV interceptor drone made by Wild Hornets, designed to ram and destroy Russian Shahed attack drones, with over 3,000 downed since June 2025.
Stinson Reliant
The Stinson Reliant, also built for military use as the AT-19 Reliant, was an American cabin monoplane produced from 1933 to 1941 and known for its distinctive gull wing.
Stockholm Arlanda Airport
Stockholm Arlanda Airport, also known as Arlanda Airport, is Sweden's largest airport and primary international gateway, located about 40 kilometers north of Stockholm and serving over 24 million passengers in 2025.
STOL
STOL, or short takeoff and landing, describes fixed-wing aircraft that take off and land on runways far shorter than conventional airplanes of comparable size require.
StormShroud
StormShroud is an electronic warfare uncrewed aircraft of the British Royal Air Force, pairing the Tekever AR3 airframe with Leonardo's BriteStorm jammer and entering service in May 2025.
Strafing
Strafing is the delivery of automatic weapons fire by aircraft against ground targets, a tactic dating to World War I and still among the most dangerous for fighter pilots.
Strategic Air Command (film)
Strategic Air Command (1955) is a Paramount VistaVision drama directed by Anthony Mann, starring James Stewart as recalled baseball player Dutch Holland, with June Allyson; made with Air Force cooperation, featuring B-36 and B-47 footage.