Speaking from an auto-targeting perspective, PK doesn't require a lock to shoot, only to initiate tracking. So if you Lock, turn the PK On, you can then drop your scope and close on the target more, and the PK/TDC will continue to "track" your target. You can move your boat and change speed, and the PK will update the "solution" in the TDC. But notice that you no longer have a Lock once you lower the scope. You can look at the Attack Map as you close, and watch the changes as they occur. If the "target" changes course, then the PK solution will be "off" by however much the targeting changed, which is why it is always a good idea to re-Lock / PK and update the TDC before shooting if doing this. Even still, you do not have to lock the target to update the solution or to initiate targeting. Just point at the target, and it could be bow, mast, stack, conn, aft, where ever, and click the PK to update the solution, and fire... In theory, your torpedo goes where the PK updated to. Watch the angle meters sometimes, and you'll see them update when you do this. If you Lock the target, you can use the torpedo angle spread meter instead to "aim" at different spots on the target. You do have to be aware of your range and angle spread when doing that though, because 1 degree at 600 yards is much much different than 1 degree at 2500 yards. What Revus suggests to Zero Niner would be the way to attack multiple targets. You can "mark" multiple targets on your NavMap, and decide which to attack first, but once you "Lock" on a targer and PK On, then that is where the torpedoes are going to go, unless you change the view of the scope (unLock) and update the PK. If you ever go to shoot at a couple of ships, and you shoot two torps, change the view and shoot two more, unless the PK is updated, all four will go to the first target - unless you're like me and miss most of what you shoot at, and accidentally hit something else...
- if you don't use the PK, then the torps go where the scope is looking.