Reply To: Mark 8** Torpedo
Best port of call is what everyone still calls the RN Submarine Museum [at Gosport near Portsmouth], although after a re-arrangement of the deck-chairs it is now offially part of the National Museum of the Royal Navy. Website:
You will need the servicing manual for the weapon for the period in which you are interested as it will have been amended at various times in the long life of the Mk 8. For one thing I know that the warhead was updated to [contain] more modern explosives.
This manual is probably split into different parts (pistol, warhead, motor, etc.) and may give manufacturers’ names.
The Museum should also be able to point you in the right direction for all your other queries even if they do not hold the information themselves. The email contact is: