Did a quick test with torps by drawing a 1km line and a 2km line, time results with game chrono were 37 and 75 seconds. So s=v/t gave 26.3 m/s and 26.6 m/s.
1kt being 0.5144 m/s gave the speed of 51.8 kts so obviously if the TDC don't add the speed bonus you'll have a hard time hitting anything from far...
Seems quite a radical speed, could some one else test this too, I'm too tired atm to think anything anymore
