ELI5: Explain Like I'm 5

ETOPS/LROPS

Okay kiddo, so ETOPS and LROPS are two very big and complicated words that grown-ups use when they talk about airplanes.

ETOPS stands for "Extended-range Twin-engine Operational Performance Standards" and LROPS stands for "Long-range Operational Performance Standards." They are both rules that say how far a certain type of airplane can fly without stopping for gas or other things.

You know how sometimes when we take a long car trip, we have to stop at a gas station to refill the gas tank? Well, airplanes need to do that too, but they can't just stop anywhere they want.

So, ETOPS and LROPS rules are like a map that tells pilots which areas they are allowed to fly over if their plane has only two engines or if they are going to fly for a very long time without stopping.

The rules are very strict and planes have to be designed and tested to make sure they can handle flying that far without stopping. This is important because if something goes wrong with the engines or other important parts of the plane, there may not be a place to land for a long time.

But, because these rules are in place and the planes are designed to follow them, it allows us to take long trips on airplanes safely and efficiently. So now you know what ETOPS and LROPS mean, and why they are important for airplanes to follow.