thread71-72284 DEAR SIRS, I SAW THAT TOMSETTER? MENTIONED NACA/NASA. I WAS WONDERING IF ANYONE HAS USED DILUTED HYDRAZINE OR HYPERGOL ROCKET FUEL IN THEIR WATER INJECTION? IT IS SUPPOSED TO BE STABLE HYDRAZINE WHEN AT LEAST 28% HYDRATED AND IT CAN BE FLAME IGNITED RATHER THAN THE ME163...