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Originally Posted by jazman
That's another annoying thing with that stadimeter. I mean, why would anyone want to set a range arbitrarily on empty ocean air?
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Setting the range lets you see a projected torpedo on the attack map screen. It really doesn't matter what the range is, although I usually set for about 1000 yards. With the Dick O'Kane attack method you set your torpedo bearing a long time before you ever see a ship. You check that by looking on the attack screen and seeing if the torpedo is going to head out in the correct direction.
Let's say the target is making 7 knots and is approaching from the left. We're at right angles to the track. We'll set up the speed on the TDC for 7 knots. Then we'll set the periscope at the bearing where we want to shoot, in this case the lead angle will be just under 10º, so we'll set up our aiming angle to 350º. Aim the perisocope to that bearing. Then go to the TDC and manually set a range (1000 yards seems like a fine number!). Press the send range/bearing button. Now you can check the attack screen and see the torpedo track going out at about 358º. That's what we want, a right angle track to the target, which is the most error tolerant track. We're ready to shoot and haven't seen the ship yet except on radar!
Now all we have to do is get a decent distance from the track and point the periscope at 350º. When the juicy parts of the ship go by the crosshairs, press the trigger. That spot on the boat is exactly where the torpedoes will hit.
See the whole seminar complete with screenshots at
http://www.subsim.com/radioroom/show...6&postcount=67.
So, why would you ever want to set range manually at a spot in the empty ocean? To sink the enemy!
