Since there doesnt seem to be info on this anywhere I wanted to start a thread with the torp layouts all nations ss. Please feel free to correct or add info. This is what I have played or been told from other SS drivers.
IJN
Tier 5 = 4 forward
Tier 7 = 4 forward 2 rear
Tier 8 = 6 forward
Tier 9 = 4 forward 2 rear
Tier 11 = 8 forward
KM
Tier 5 = 3 forward
Tier 6 = 4 forward 2 rear
Tier 7 = 4 forward 1 rear
Tier 8 = 4 forward 1 rear
Tier 9 = 4 forward 1 rear
Tier 10 = 4 forward 2 rear
Tier 11 = 6 forward
US
Tier 5 = 4 forward
Tier 7 = 4 forward 2 rear
Tier 8 = 4 forward 2 rear
Tier 9 = 4 forward 2 rear
Tier 11 = 6 forward 4 rear
UK
Tier 5 = 4 forward
Tier 7 = 6 forward
Tier 8 = 6 forward
Tier 9 = 6 forward 2 rear
Tier 11 = 6 forward 4 rear