How big of a role is inertia going to play in this game? I'm not talking about surface level stuff like "big ship moves slower," I'm talking about digging deep into the physics engine. For example: Are long, skinny ships going to able to barrel roll quickly, but flip end for end much slower?asked by AFKeefer

Real inertia is used for all the calculations - the ship's computer is calculating the needed thrust based on the ship's current moment of inertia - which is re-calculated anytime the ship has a part added or taken away. So yes longer skinnier ships should roll quicker (assuming the same powered maneuvering thrusters)