Prototype 125 hp Engine RadMax™ Engine Description Cylindrical rotor with integrated drive shaft Axial vanes move sinusoidally Cams on each end of the rotor guide the axial vanes Major moving parts: rotor and 12 axial vanes Symmetric design forms 24 combustion chambers RadMax™ implementation of Otto 4-cycle engine: On the right is a schematic diagram of the rotor "unwrapped" illustrating the 24 power strokes every revolution, 12 on upper side of rotor, and 12 on lower side of rotor. Prototype 42 hp Engine 6 inches dia. 6 inches long 42 hp at 7000 rpm 40lbs. Tested at NAVAIR PSEF Oct. 2003 Improvements Since 1st Prototype Build and Test Integrated Sleeves and Rotor to eliminate leak paths Surveyed similar COTS engines to derive seal technology Designed for Maintainability Eliminated all corners and edges to facilitate seal technology Dynamic Seals Allow Increased Running Clearances