Another thing to be considered is the size of the raba (which isn't bad when vertical strafing), the fact that the bretonian Gunboat is a brick, and the fact that the raba has 600 b/b and the Bretonian has 400 b/b. On top of that, the Raba can fire their stuff longer than the bretonian can fire their weapons.
Oh, another interesting fact, the Raba turns faster than the Salvager (I believe).:D
I'm sure things like this could be tested in-game. (I sold my raba though)
