R-Jet Engineering is the developer of the Orbiting Combustion Nozzle (OCN) gas turbine engine. The OCN rotates the air and hot gases in the combustor with the compressor and turbine, eliminating the need for two sets of static blades. As a result, an OCN engine can be built at half the size of a conventional jet of similar power, with fewer components and at a lower cost. In addition, the OCN engine uses at least 25% less fuel than conventional engines, and its emissions of carbon dioxide and nitrogen oxide can be cut by three-quarters because of its ignition properties.