Good morning all I have two Athearn GP15s that I am very happy with except for the horns. I would like to replace them with regular detail parts but I'm a bit confused. I realize that RR constantly changed and moved appliances but I've seen pictures with a 5 chime horn with all bells facing forward and others with 3 forward two facing back, what horns did the Frisco use on there GP15s please? I also want to download the correct sound for the proper horn. Thank you much!
What road numbers do you have? The archive is always a good place to start. http://frisco.org/mainline/?s=Gp15-1&submit=Search You can search by the particular road numbers you have and see what the prototypes used. The Frisco mostly used Leslie RS5 horns on their locomotives. The 3 forward 2 reverse was most common, but some units had an all 5 forward version.
Here's a picture I took of the very first GP15 to arrive in Fort Smith, AR. I am going to venture to say that every one of them came with all the chimes facing forward. Any alteration to any particular unit was made sometime after delivery.