The physics of why your flight stays above the clouds
In short: Commercial flights typically cruise at 35,000 feet for reasons that balance engineering efficiency with passenger safety. This video explains how high-altitude conditions optimize jet performance while providing a smoother journey.
Flying at high altitudes allows airplanes to take advantage of thinner air, which significantly reduces aerodynamic drag. Additionally, jet engines are designed to operate more efficiently in these conditions, making the journey faster and more fuel-efficient.
Beyond mechanics, cruising altitude serves practical purposes: it helps aircraft avoid most turbulent weather systems and utilizes jet streams for speed. To make this environment habitable, modern aviation relies on pressurized cabins to maintain passenger comfort.
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Sources
- Summary by Intellect · source: Why Airplanes Fly at 35,000 Feet
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