Well me being a newbie I have been working on various horns for Railworks. I've created a fair share of sounds from MSTS to trainz and for railworks but I have never released anything before for RailSimulator at all. But I cut the chase and get right to it.
I have created a AEM-7 K5LA for Railworks and I think this is the 3rd or 4th time I have made a attempt on changing the horn for the AEM-7. But this time I think I got it down for the first time. I'll post a link below for a audio sample as well if you want you can browse through my other sound projects for MSTS if you like. But please give me some feed and I will try to get this out to you guys asap.

Audio Sample:
https://soundcloud.com/tyrone-kunta-jackson/railworks-aem-7-k5la-wip
Thanks,
-Ryan R.