ELI5: Explain Like I'm 5

Minimum safe altitude warning

When an airplane is flying in the sky, it needs to stay a certain distance away from the ground, mountains, and other things that could get in the way. This distance is called the altitude. The minimum safe altitude warning is like a loud, buzzing alarm that tells the pilot when they are getting too close to the ground or other things.

It's kind of like how your mom reminds you to stay away from the hot stove because you could get burned. The minimum safe altitude warning is like a mom for the airplane, reminding the pilot to stay up high enough to be safe.

The warning uses special technology to figure out how far the airplane is from the ground, mountains, or other obstacles. If the airplane gets too close, the warning goes off and alerts the pilot to change their altitude and fly higher.

This is very important because airplanes need to be careful and avoid crashing into anything on the ground. So, the minimum safe altitude warning helps keep us all safe while we fly in the sky.