Ship draft is still available just presented differently now, it requires that you identify the target type, you will see a small tick box to the right of the small icons beneath the ship type display, click this to confirm the ship type when you believe you have identified it correctly, this places a green check mark on the ships graphic and updates the ship name in your list of observations sent to the xo.
Next if you look at the torp window, there is a small button that presents a drop down view allowing you to set depth and switch between contact and mag detonator, in this view you are shown an outline of the targets hull based on your ship selection at the scope, and can see exactly where your torp should strike in relation to its hull and allows you to set the torp depth precisely.
