This is a test of a Zinc/Sulfur rocket engine, using acetone as a binding agent. It was not baked in a kiln, just left overnight to dry, so the power output is low. But the fuel/oxidizer/binder ratio appears to be pretty good. The fuel grain was hard and tight. The next step is to use a mold and bake it in a kiln.
looks like a blow torch
MegaRocketLaunch 7 months ago
What ratio did you use? (By mass)
AstroOwl 8 months ago