Bullshit. It's ITAR, they don't want parts floating around in the world that can make a dead nuts accurate INS - inertial navigation system, as this enables wea

Bullshit. It's ITAR, they don't want parts floating around in the world that can make a dead nuts accurate INS - inertial navigation system, as this enables weapons we don't want in the wild. You can stabilize out everything and account for the rotation by simply watching the vector of gravity over time.