Thank's for your answer skwasjer.
I have work all this evening and I founded what I searched. Like you guessed, the start point of the torpedo is the position of the node of the torpedodoor number2. And the position of the camera is define in the evencamera.dat file that you have in the SH4\data\library.
Now, to finish the work on Akula, I try to modify the number of torpedo storage.
Again, thank's for your great tool.
Xavier PETIT