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Originally Posted by Marcus
Yeah, but how do you work out the solution to the gyroangle of the shot using specific speed for torps to interceptcourse once you get course and AoB? That's the easy part.
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The TDC does the solution with the gyroangle. You only need to input two things correctly:
1) AOB and 2) the target's speed.
The AOB can only 0° to 180° (Green) Starboard side showing or (Red) Port side showing.
The best way to judge AOB is by observing the squareness of the superstructure. It's just a square box on top of the main deck. When the AOB is 45°, the forward bulkhead and the adjoining side will appear to have the same length. Pretty simple.
It's not important to have the range at all. Many times I've left it where it sets naturally.
Once the AOB and Speed are input, the torpedo will pretty much strike where it's aimed at the moment of shot.
Richard "Killer" O'Kane practiced viewing target AOB by looking at a ship model thru a binocular turned backward for distance effect, from across the mess deck of the Wahoo. He was never off by more than 2 degrees.