Most commercial flights fly at 38,000 feet, above the Class B maximum height and there is not a specific limit imposed. British Airways' Chief Pilot Captain Al Bridger told MailOnline Travel that aviation industry speed limits differ from aircraft to aircraft.
What Causes Seasons on Earth? Seasons happen because Earth's axis is tilted at an angle of about 23.4 degrees and different parts of Earth receive more solar energy than others. Earth's orbit around the Sun is elliptical. Seasons are caused by Earth's axial tilt and temperatures and nature's processes are affected. Because of Earth's axial tilt (obliquity), our planet orbits the Sun on a slant which means different areas of Earth point toward or away from the Sun at different times of the year. Around the June solstice, the North Pole is tilted toward the Sun and the Northern Hemisphere gets more of the Sun's direct rays.
Earth's orbit does not cause seasons. Many believe that the seasons on the Earth occur because of its elliptical orbit around the Sun, with winter occurring when the Earth is at the Aphelion, and summer when the Earth is at the Perihelion.This is not true.The Earthâs movement around the sun has very little effect on the onset of seasons at either hemisphere. In fact, the Earth is at the Perihelion or closest to the sun around the winter solstice, while the earth is farthest away from the sun or at the Aphelion around the summer solstice.his is not true. The Earthâs movement around the sun has very little effect on the onset of seasons at either hemisphere. In fact, the Earth is at the Perihelion or closest to the sun around the winter solstice, while the earth is farthest away from the sun or at the Aphelion around the summer solstice.