The real reason planes fly at high altitude

Added: 2026-05-16

[00:00:00]Airplanes fly much higher than most people think. And it's all about efficiency.

[00:00:05]At higher altitudes, the air is thinner.

[00:00:08]That means less drag pushing against the plane.

[00:00:11]Less drag means less fuel [music] needed to maintain speed. But there's a limit.

[00:00:16]Too high and the engine stop working efficiently because there isn't enough oxygen. [music] So pilots fly in the sweet spot between drag and engine performance. [music] And that balance saves huge amounts of fuel on every single flight.

[00:00:31]Follow for more simple engineering.