Quote:
Originally Posted by ColBosch
I suspect that ballast tanks would be too vulnerable to overpressure from enemy munitions. Remember that we're talking about nuclear weapons here. Also, Ogres weigh a LOT; I don't know if they even have enough internal volume to support tanks physically big enough.
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Railguns, the drive train, and the nuclear plant sink, but BPC floats. Even without air-filled ballast tanks like in a sub, the designers could choose density.