U.S. Patent Specifications

A power unit for aircraft and the like comprising, an internal combustion engine, a variable pitch propeller, a supercharger for said engine, a compressor, a series of combustion chambers surrounding said compressor and connected to be supplied by said compressor, each of said combustion chambers terminating rearwardly in a propulsion jet, means for clutching said propeller to be driven by said engine, and drive means connecting said engine to the drive shafts of said supercharger and said compressor.