It's a runner but it's obvious that the design wasn't intended for people with small compressors. I get just about a minute on on tank of air and if I open the whistle my little 3 gallon compressor can't keep up. On the plus side the design gives it a pleasant sounding chuff when it's running. Here are some pics.
Here is a video of it running. (Please excuse the focus issues)
Now I need to figure out what build next. I'm currently leaning towards doing Elmer's Scottie.
Till next time.
Tony