[I'm goin' down]

I downloaded and ran the dick o'kane mission yesterday. I hit the tanker with all six shots. Shots nos. 5 and 6 were slow speed torpedoes. I assume the TDC automatically adjusts the lead angle when you switch from a fast torpedoes to a slow one? Or, when the speed of the torpedo is different do you have resend the range before firing?

Also, O'Kane, being a rule of thumb, becomes less accurate at long ranges. For example, you describe a scenario at 8 kts. where impact occurs at a bearing of 359 degrees. The lead angle is 9 degrees and firing point under O'Kane is when the target crosses the 350 degree bearing. Let's accept that it works at 1,000 yds. (practice verifies it does). It might not hit the target at 2,000 yds., since the firing point(a bearing of 350 degrees) is not when the target crosses a bearing of 351 degrees. The difference of one degree in the firing point (351 degrees [precise firing point] - 350 [Dick O'Kane firing point] = 1 degree.) when the range is 2,000 yds. rather than 1,000 yds. could result in the torpedo arriving at the impact point (359 degrees) before the target does. RR pointed this out in one his posts a long time ago, and, as I recall, the safest ranges for OKane are 800 (?) - 1,500 yds.

And, don't forget:

For the long distance shot, Rock n Shoals constant bearing method or gutted's chart diplayed above or gutted's Solution Solver program are good ways to go. The Solution Solver is pretty amazing.

And, for the angled shots, Cromwell or gutted Solution Solver program or manual targeting using the Easy Aob mod (PK activated) are tried and true techniques.

And my favorite: close your eyes, push all the buttons, and pray.