If I set-up a test mission with something that doesn't shoot back at them, that is what the Betty normally does, but when there is heavy AA fire, they shy away and won't attack "normally" like that... sigh. It makes filming an epic FotRSU intro movie a bit of a bother... lol - If you can get close enough to the plane when it drops, the bomb bay doors do not open, and the torp just appears from nowhere. Kind of like if you happen to catch a bomb drop from a plane, you'll see the bombs just materialize below the plane, and the bomb(s) you see attached on center- or wing-points stay. One of the vagaries of the game. "Secondary actions" is what they are. We're not supposed to be looking at all the pretty scenery up top anyway - we're translucent-skinned submarine skippers!