Sounds like a real find. You'll definately want to try doppler effect amplification.

I have a Motion sound top rotor box which i use with a Hammond XP-2. I don't think they make them anymore. I has a moving horn and bottom simulator. It "ain't" a 147RV, but it is about the size of a small suitcase. Of course, when I can, I use a B-3 and a 147RV.


Have fun!

Russ