Water salute
Encyclopedia
A water salute occurs for ceremonial purposes when a vehicle
Vehicle
A vehicle is a device that is designed or used to transport people or cargo. Most often vehicles are manufactured, such as bicycles, cars, motorcycles, trains, ships, boats, and aircraft....

 travels under plumes
Plume (hydrodynamics)
In hydrodynamics, a plume is a column of one fluid or gas moving through another. Several effects control the motion of the fluid, including momentum, diffusion, and buoyancy...

 of water
Water
Water is a chemical substance with the chemical formula H2O. A water molecule contains one oxygen and two hydrogen atoms connected by covalent bonds. Water is a liquid at ambient conditions, but it often co-exists on Earth with its solid state, ice, and gaseous state . Water also exists in a...

 expelled by two or more fire fighting vehicles.

At an airport, typically an even number of vehicles will line up perpendicular on the sides of the taxiway
Taxiway
A taxiway is a path on an airport connecting runways with ramps, hangars, terminals and other facilities. They mostly have hard surface such as asphalt or concrete, although smaller airports sometimes use gravel or grass....

 or apron
Airport ramp
The airport ramp or apron is part of an airport. It is usually the area where aircraft are parked, unloaded or loaded, refueled or boarded. Although the use of the apron is covered by regulations, such as lighting on vehicles, it is typically more accessible to users than the runway or taxiway...

, and the plumes of water will form a series of arches. Symbolically the procession would look similar to a bridal party walking under a wedding arch or the Arch of Sabres at a military wedding.

Water salutes are also used for ships and other watercraft, with water being delivered by fireboat
Fireboat
A fireboat is a specialized watercraft and with pumps and nozzles designed for fighting shoreline and shipboard fires. The first fireboats, dating to the late 18th century, were tugboats, retrofitted with firefighting equipment....

s.

Water salutes have been used to mark the retirement of a senior pilot, air traffic controller or the first or last flight of an airline to an airport, or for other notable events. When the Concorde
Concorde
Aérospatiale-BAC Concorde was a turbojet-powered supersonic passenger airliner, a supersonic transport . It was a product of an Anglo-French government treaty, combining the manufacturing efforts of Aérospatiale and the British Aircraft Corporation...

 flew its last flight from John F. Kennedy International Airport
John F. Kennedy International Airport
John F. Kennedy International Airport is an international airport located in the borough of Queens in New York City, about southeast of Lower Manhattan. It is the busiest international air passenger gateway to the United States, handling more international traffic than any other airport in North...

 blue, white and red
Tricolour
A tricolour is a flag or banner more-or-less equally divided into three bands of differing colours...

coloured plumes were used.
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