[Hondo314]

Originally Posted by Brag

All torps are mag torps, it's up to you to set how are they going to run and where they are going to explode, on impact or under the keel.

Granted, both impact and magnetic detonators are incorporated in each torpedo, but they are selectable. In game, the magnetic setting leaves both detonators enabled. Selecting the impact setting disables the magnetic detonator, leaving only the impact detonator enabled. When you say that premature detonation occurs when torpedos broach, are you suggesting that the impact of a wave against the nose of the torpedo is what triggers detonation?

I do not know the intricasies of magnetic detonators, but I imagine they work somewhat like a relay in which magnetic attraction between two contacts closes a switch to trigger detonation. Rather than an electricomaget in modern relays, the ferromagnetic metals of a ships hull disrupt the earth's magnetic field between two contacts to close the switch. Given the relative weakness of the earth's magnetic field at the surface, the contacts would have to be close to be sensitive enough. The vibrations resulting from a broaching torpedo might be enough to force the contacts to touch and close the circuit.

In summary, the forces involved with a broaching torpedo may conceivably trigger either detonator. Because both are enabled with the magnetic setting, the only way to test for sure is to send eels at shallow depths with both settings to see if there's a difference.