Does speed increase with altitude?

As well as wind, temperature, and altitude also impact true airspeed. When altitude or air temperature increases, the density of air decreases and the true airspeed increases. This is because there is less air to put up resistance against the aircraft moving forward, so the aircraft moves faster through the air.



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An analysis of these data has indicated that for the higher altitudes (50,000 to 75,000 feet), turbulence is both less frequent and less severe than for the lower altitudes (20,000 to 50,000 feet). Turbulence appears to be present at the high altitudes (60,000 to 75,000 feet) less than 1 percent of the time.

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The reason planes cruise at high altitudes is that they burn less fuel and can fly faster, as the air is less dense. At 30,000 feet and higher, it is also possible for aircraft to avoid weather systems, making it more comfortable onboard.

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Whether flying at night or during the day, pilots need to see some kind of horizon. They use this to determine the airplane's attitude. At night pilots will turn their gaze from outside to inside and use the artificial horizon. The artificial horizon is normally a simply globe split into two hemispheres.

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Pilots know that flying safely in threatening turbulence requires slowing to VA, the maneuvering speed. This assures that the airplane will stall before its limit load factor can be exceeded. Such a stall is momentary and protects the structure against damaging loads.

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Yes, an aircraft can stay in the air without going forward if the oncoming wind, called headwinds are equal or greater than th minimum speed of that aircraft. This principle is used in the wind tunnels to experiment the flight characteristics by blowing the wind to the aerofoil and assess the aerodynamic changes.

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Air itself is constantly in motion; it will often rise toward the sky. But, any air that rises will expand and cool, as it encounters progressively lower atmospheric pressure (explained further in the next section). The upshot is that the air outside a plane will be much colder than at ground level.

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In jet aircraft, an overspeed results when the axial compressor exceeds its maximal operating rotational speed. This often leads to the mechanical failure of turbine blades, flameout and total destruction of the engine.

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