LOL… the Caboose is the last carriage in that video.
That train looks like it’s got a K3 or an M3 Airchime.
The “Caboose Trumpet” which hornblasters sells has got an audio clip on the product page
Sounds like a harmonica on steroids IMO.
you can hear the stuck caboose horn a few seconds in when the main horn stops. Just trying to find an example of the sound.
lol perfect