Abstract: A jet type engine includes a rotor through which air is drawn and compressed by centrifugal force with the air thus heated and compressed being mixed at the periphery of the rotor with fuel to ignite the same and establish a jet which causes the rotor to rotate. In some cases the air may be precompressed prior to its delivery to a hollow shaft from which it travels radially outwardly through hollow spokes for compression and heating prior to its mixture with fuel that is introduced through a small tube extending through a corresponding one of such hollow spokes. The resulting combustion gases are directed through guides onto turbine buckets on a second rotor which rotates in a direction opposite to that of the air and fuel conducting rotor and the exhaust gases are discharged in a direction extending parallel to the axis of rotation, i.e., sideways. A common output shaft is coupled to these two oppositely rotating rotors for powering, for example, an automobile with energy derived from both such rotors.