Spath Engineering conducts empirical investigations of aerospace propulsion systems.  Projects have included firings of LOX / hydrocarbon hybrids and simulated hypersonic testing of LOX enriched turbine engines. Owner Terry Spath graduated from the University of Washington in Aeronautics and Astronautics in 1974, and has participated in numerous aerospace development and test programs.  Notable past projects include aircraft flight tests at Learjet and liquid bi-propellant rocket development work as a contractor to the Air Force Research Laboratory.  Spath Engineering contracted with the Defense Advanced Research Projects Agency (DARPA) for jet engine research. Terry Spath holds an FAA ATP and A&P with Inspection Authorization.
Video showing a 6 inch sub-scale Oxygen / Hydrocarbon vortex flow hybrid motor under development