This is a Internal Combustion Rotary Engine. Completely rotary with all parts rotating from a central axis. The ME2a, unlike all reciprocating piston engines, maximizes torque output for the duration of its power stroke. This gives it superior power and efficiency. The ME2a will replace all reciprocating piston engines. Made from ceramic material, no cooling system, no fluid lubrication. Very compact, light weight, efficient and powerful.