Eli5 Why do people leave doors open in helicopters?

Question

I don’t even like having my car windows open past 40 mph, but helicopters go way faster. Isn’t that an assault on the senses (ears, eyes especially)?

In: 21

Answer 1

Many helicopters lack air conditioning. For one, it takes power from the engine, which can be a Bad Thing™. Combine that with large Plexiglas windows and it gets really hot inside.

Obviously, for military helicopters, you sometimes want to shoot out of the doors. And egress faster when you need to.