Back on the old board, Adam has posted a thread of this name. It was talking about the Walkersville Rescue truck... I never got to post the link to this video becuase I kept forgetting. If you go here http://pumpfire.com/wst_page9.html and scroll down to the "Maytown, Pa Rescue Squad 7-9 Response" video... that is the next fire department down from mine and they have train horns on that piece. Not sure what kind they are supposed to sound like as I don't know train horns, but you can hear them quite well in this video. Sooo, if anybody knows what it is supposed to sound like... or just wants to comment on the video. Feel free!
If you look closely at the front bumper in this picture, you can see the horns under the bumper.
Dave Fritz