Do Iron typically have atmospheric speed ratings in Iron Empires cannon? I’ve never read the graphic novels but several pictures depict characters wearing Iron flying while curled up in a ball/fetal position.
If this is already covered in the rules of Iron I must apologize because I missed it.
Note that the grav packs (both in the comic and in the game) are basically high-tech parachutes for Iron, though: Those guys in the pictures aren’t flying, they’re falling.