So why aren't the high power amateur rocketry guys doing C3H8-N2O
rockets already?


We do, go to
http://www.hawkfeather.com/ratt/tribrid_tutorial.html
I use Ethel Alcohol Instead of propane.
Also more info at www.rattworks.com

Dave Griffith
~~~~~~~~~~~~~~~~~~~~~
Dave Griffith
TRA 7956
The R.A.T.T.-works
Monterey Machine Products
1504-A Industrial Park Street
Covina, CA 91722 U.S.A.
http://www.rattworks.com