Didn't General Chang's BoP fire a torpedo (Or disrupter blast) that cut through the saucer, entering the ventral surface and exploding out the dorsal side? Yes, I know the shields were collapsing. If it could explode through however many decks the saucer has, then it is conceivable that a torpedo or two or three could rip through one side of an unshielded hull and the explosion exit the other. If the right area is hit, a bridge, no matter how deep in the bowels of a ship, is vulnerable.
Which is why the point I was making referred
specifically to the damage a ship takes when it still has full or at least partial shields (before the point where they are "collapsing", let alone gone). There IS bleed through damage that can cause small to moderate hull breaches; if one such hull breach occured on deck 1, the bridge would instantly have a hole out into space (see: Nemesis). If the bridge were deep in the ship, this would not happen.
Once the shields are down, starship hulls generally do not do too well against weapons in Trek, as has been mentioned often in this thread, but I was referring to damage that gets through when shields are still up.
Since all of the terminals in the bridge explode every time the shields get hit anyway, does it really make that much difference where it is in the ship?
Since starship bridges can be swapped out and replaced at will, perhaps they're on the top of the hull just to make this process easier.
True, I recall that as well (as
Vanyel suggested, I think it was the TNG tech manual). While that would be
handy, I don't think it's worth exposing the bridge to damage like that. Assuming, of course, that one acknowledges the problem at all, in-universe, which I still say is a bad idea. In this case, mentioning the easy-swap as being the reason why the bridge is on top is also ill-advised, because it still calls attention to the bridge's location.
^ Maybe not, but I still think I'd generally use the battle bridge if I were commanding a starship that had one to avoid giving an enemy an easy kill.
Interseting thing about the battle bridge on the Enterprise Dee is that if there is a saucer separation, where then is the battle bridge?
It on the very top of the stump of the dorsal neck! Not any better protected that the main bridge .



A good point, really. And frankly, I think the term "battle bridge" doesn't work anymore. It worked initially, when the idea was that the preferred MO for the Ent-D was to seperate whenever major trouble was expected, sending only the engineering section into combat. But, they ultimately didn't do that - thank goodness, since the engineering section on its own looks ridiculous, and the whole concept is dodgy. That said, if it's no longer a "combat" maneuver, but pretty much ONLY an emergency maneuver (i.e. Generations), it shouldn't be called the "battle bridge" (nor should the engineering section be called the "battle section").