Designed, developed and tested several new rocket engine designs.Developed high-performance composite structures for launch vehicles, aircraft, and energy markets.Invented new devices for aero-propulsion and aerodynamic controls.Designed and built high strength-to-weight ratio aircraft structures.Developed various filament-wound tanks, pressure vessels, and rocket motorcases from concept through qualification testing.Generally working to advance the state-of-the-art in aerospace vehicles through the implementation of new ideas and devices to attain high levels of energy efficiency.Specialties: Filament-wound composite tanks & pressure vessels.Self-cooled ablative rocket chambers & nozzles.Composite tanks for cryogenic liquid propellants.Liquid rocket propulsion system design.Aerodynamic and structural design of aircraft.Forced-circulation devices for aerodynamic lift-propulsion-control.Novel propellers and aerodynamic control surfaces.Active boundary layer control devices.