[TorpX]

The diving/depth performance is at least partly a function of the sub's mass. I was fooling around with the sim file of the S-18, mainly trying to figure out how to dampen the acceleration of it and generally figure out the physics of this game. Since nothing else worked, I put in a figure of 1,000 tons mass for the boat. This was not an enormous increase, but I was hoping the inputting a figure would change the way it worked. Well it did slow down the boat quite a bit. It also dived very quickly to periscope depth....... and kept right on going, down to the bottom. For laughs, I increased it to about double, to see if it could stay on the surface. No dice - it dropped like an anchor, straight down, the second the mission started.