Things I've Learned From Action Films

[Cod]

If you're the good guy. A leg over is guaranteed.

[Gawdzilla Sama]

You can totally fire an RPG from the inside of a helicopter without the backblast fucking up your world.

Well, actually you can.  With some.

Modern RPGs are typically designed to be able to be fired from inside a small confined space.

They usually use a small explosive charge to throw the rocket clear of the firer and firing space before the rocket motor ignites.  The back blast from the rocket is safe when the rocket motor ignites.

The explosive charge does vent backward as rocket is thrown forwards, but it’s effects are mitigated because the charge is small, and some soft frangible substance like styrofoam is often used to muffle the effect the back blast from the charge.

One of the training modules with the bazooka was teaching men that there would be no rocket blast in their face when the round exited the tube. Soviet RPG rounds don't have a tube that long and the gunners have the same lesson to learn.