Just imagine an airplane like a Boeing or an Airbus, if you add them an extra antena or something in the outside of the ship. Im pretty sure because of that the cargo hold won´t be affected...
It just does not make any sense the equipment occupying cargo hold space...:wacko:
Not an antenna perhaps, but if you mount an enormous torpedo launcher and stock it with lots of torpedoes that's less weight you can carry because you had to give some up for all of that. It makes perfect sense if you think about it, these are shields and scanning devices and energy weapons and each one is a little more that you have to carry.
Remember, the Enola Gay had to be stripped of practically all non-essential hardware just so it could handle the weight of the A-Bomb. By the time they were done with it, it was useless for anything but flying and dropping that bomb.