Break away cabs on EMD E and F units?

Bob no ideas come to mind on that gentleman's name.My dad might remember.I'll ask him when i talk to him.As for the E and F units i don't know why they did that.My guess is that there was a flaw in the design of the cab.Possibly the wider body(covered wagon style)allowed the car body to move too far in the event of blunt trauma before it hit the engine block.Then it just sheared it off.That's purely a guess on my part.As for torpedoes we don't use them anymore.I haven't seen a torpedo on an engine(or anywhere else)in years.As with many things on the railroad the pinhead lawyers got involved and decided we were just too stupid to be in possession of explosive devices lol.