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Originally Posted by CapnScurvy
That's exactly right. The Attack Data Tool sends the AoB and target Speed, and these set the gyro angle for the torpedos (the Spread Angle will also, but I'm assuming it's set to zero). If you watch the small white arrow on the Position Keeper you'll see it move port or starboard with the AoB or Speed input.
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For any target whose AoB is not 0º or 180º, the American TDC needs three parameters to complete a solution: target speed, AoB or target course AND target bearing/range. If you want to be picky (bearing and range are sent with the same input through direct input from the periscope when you press the range/bearing send button) you can separate range and bearing as I do with the Dick O'Kane technique, but we're talking textbook TDC technique here.
Angle on the Bow and speed are useless by themselves because the torpedo must be fired along a bearing line to the target. The gyro angle is the difference between the sub's heading and that bearing line. Now the torpedo track will also be corrected from that bearing line because of target speed and range in order to properly lead the target so torpedo and target attempt to accupy the same space at the end of the run and we get a kaboom.
So under no circumstances is Angle on the Bow and target speed enough data to shoot. In fact your TDC will tell you there is no solution for torpedo #x if you push the fire button.
Rather than confuse you I'm recommending you to the WernerSobe Advanced School of Submarine Attack Tactics (WASSAAT). I'm sending you to my links in Werner's thread because at last report Werner's quit working. These are still HIS videos, not mine. They're the best you will find.
http://www.subsim.com/radioroom/show...0&postcount=82.
Classes begin when you arrive (you're a VERY important person). While you're there, visit my seminar on the Dick O'Kane attack method, which simplifies technique a bit and allows you to aim each torpedo for a specific spot on the target.
http://www.subsim.com/radioroom/show...6&postcount=67. Time spent reading posts in Werner's thread will make you a great sub skipper.
Enjoy, then hide, hunt and kill!
