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Taxiing
Taxiing (rarely spelled taxying) is the movement of an aircraft on the ground, under its own power, in contrast to towing or pushback where the aircraft is moved by a tug. The aircraft usually moves on wheels, but the term also includes aircraft with skis or floats (for water-based travel).
An airplane uses taxiways to taxi from one place on an airport to another; for example, when moving from a hangar to the runway. The term "taxiing" is not used for the accelerating run along a runway prior to takeoff, or the decelerating run immediately after landing, which are called the takeoff roll and landing rollout, respectively; however, aircraft are considered to be taxiing when they leave the runway after landing to travel to a gate or remote stand for disembarkment.
As early as 1909 aviation journalists envisioned aeroplanes to replace the taxicab in traffic-congested cities.
Some aviators and some linguists report that around the year 1911 the slang word "taxi" was in use for an "airplane". They suggest that the way aircraft move under power before they take off or after they land reminded someone of the way taxicabs slowly drove around the block when looking for passengers.
Also by 1909, French aviation pioneers like Blériot, Farman and Voisin used the term "taxi" for a trainer aircraft, that was so constructed that a pupil would not accidentally get airborne.[citation needed]
Usage of the word for an airplane quickly disappeared again, but the verb "to taxi" stuck, and words like the "taxiway" were derived from it.
The thrust to propel the aircraft forward comes from its propellers or jet engines. Reverse thrust for backing up can be generated by thrust reversers such as on the Boeing C-17 Globemaster III, or reversible pitch propellers such as on the Lockheed C-130 Hercules, a rare procedure known as powerback. Most aircraft, however, are not designed to back up on their own and must be pushed back either by hand or by using an aircraft tug.
At low power settings, combustion aircraft engines operate at lower efficiency than at cruise power settings. A typical A320 spends an average of 3.5 hours a day taxiing, using 600 liters (160 U.S. gal) of fuel. Hybrid electrically driven nose gear are under development to allow high use aircraft to shut down the engines during taxi operations.
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Taxiing
Taxiing (rarely spelled taxying) is the movement of an aircraft on the ground, under its own power, in contrast to towing or pushback where the aircraft is moved by a tug. The aircraft usually moves on wheels, but the term also includes aircraft with skis or floats (for water-based travel).
An airplane uses taxiways to taxi from one place on an airport to another; for example, when moving from a hangar to the runway. The term "taxiing" is not used for the accelerating run along a runway prior to takeoff, or the decelerating run immediately after landing, which are called the takeoff roll and landing rollout, respectively; however, aircraft are considered to be taxiing when they leave the runway after landing to travel to a gate or remote stand for disembarkment.
As early as 1909 aviation journalists envisioned aeroplanes to replace the taxicab in traffic-congested cities.
Some aviators and some linguists report that around the year 1911 the slang word "taxi" was in use for an "airplane". They suggest that the way aircraft move under power before they take off or after they land reminded someone of the way taxicabs slowly drove around the block when looking for passengers.
Also by 1909, French aviation pioneers like Blériot, Farman and Voisin used the term "taxi" for a trainer aircraft, that was so constructed that a pupil would not accidentally get airborne.[citation needed]
Usage of the word for an airplane quickly disappeared again, but the verb "to taxi" stuck, and words like the "taxiway" were derived from it.
The thrust to propel the aircraft forward comes from its propellers or jet engines. Reverse thrust for backing up can be generated by thrust reversers such as on the Boeing C-17 Globemaster III, or reversible pitch propellers such as on the Lockheed C-130 Hercules, a rare procedure known as powerback. Most aircraft, however, are not designed to back up on their own and must be pushed back either by hand or by using an aircraft tug.
At low power settings, combustion aircraft engines operate at lower efficiency than at cruise power settings. A typical A320 spends an average of 3.5 hours a day taxiing, using 600 liters (160 U.S. gal) of fuel. Hybrid electrically driven nose gear are under development to allow high use aircraft to shut down the engines during taxi operations.
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