The tail of a Lufthansa airliner (Airbus A319) in flight, showing the horizontal and vertical stabilizer

Mathematics: see Group action. Download high resolution version (600x684, 89 KB)The tail of a Lufthansa Airbus A319 in flight. ... Download high resolution version (600x684, 89 KB)The tail of a Lufthansa Airbus A319 in flight. ... In mathematics, groups are often used to describe symmetries of objects. ...

In food or chemicals, a stabilizer is a substance added to prevent or retard an unwanted change in physical state.

For aircraft, the horizontal stabilizer is a fixed or adjustable surface from which an elevator may be hinged, while a vertical stabilizer (also called a fin) is fixed to the aircraft and supports the rudder. For aircraft with a v-tail each stablizer/fin will support a "ruddervator", combining the functions of the rudder and the elevator. For other meanings of elevator see Elevator (disambiguation). ... A fin is a surface used to produce lift and thrust or to steer while traveling in water, air, or other fluid media. ... A rudder is a device used to steer a ship or other watercraft. ... The V-tail of a Belgian Air Force Fouga Magister In aircraft, a V-tail (sometimes called a butterfly tail) is an unconventional arrangement of the tail control surfaces that replaces the traditional fin and horizontal surfaces with two surfaces set in a V-shaped configuration when viewed from the...

Bicycle stabilizers (called training wheels in the USA) are an additional wheel or wheels mounted parallel to the rear wheel and which assist learners until they have developed a usable sense of balance on the bicycle. Typically stabilizers will be used in teaching very young children to ride a bike. Training wheels are a colloquial term for stabilizers used on bicycles. ... This racing bicycle is built using lightweight, shaped aluminum tubing and carbon fiber stays and forks. ...

Ship stabilizers are fins mounted beneath the waterline and emerging laterally; in contemporary vessels, they may be gyroscopically controlled active fins, which have the capacity to change their angle of attack to counteract roll caused by wind of waves acting on the ship. Acrobatic bicycle is possible thanks to gyroscopic effects A gyroscope is a device which demonstrates the principle of conservation of angular momentum, in physics this is also known as gyroscopic inertia or rigidity in space. ... In this diagram, the black arrow represents the direction of the wind. ...

External links

• Sperry Marine - manufacturers of ship stabilizers.