Why can jets and helicopters do a midair refuel with their engines running while cars and trucks are supposed to turn their engines off when getting gas or diesel?

Question

Why can jets and helicopters do a midair refuel with their engines running while cars and trucks are supposed to turn their engines off when getting gas or diesel?

In: Other

Answer 1

There isn’t much to explain here. All vehicles can do it. Out of an abundance of caution we don’t do it with road cars but race cars do it all the time.