Abstract: A radial Combustion motor is provided that includes a compression section, or a combustion section, or both. Each of the combustion section and the compression section includes a cylindrical rotor that rotates in a cylindrical chamber. An inner wall of each chamber includes multiple ridges such that a rotor, when positioned in the rotor's respective chamber, divides the chamber into multiple sub-chambers in conjunction with each of the multiple ridges. Each rotor includes multiple sealing blade slots that each extend the length of the rotor and that each slidably receive one of multiple sealing blades. Rotation of each rotor causes the sealing blades disposed in the sealing blades slots of the rotor to slide outward until an outer edge of each sealing blade slidably engages the inner wall of the associated chamber and to remain engaged with the inner wall for so long as the rotor rotates.