Profile: CJR Propulsion Ltd. specializes in propeller and stern gear systems. Our products include stern tubes, P brackets, shafts, CJR propellers, rudders, and auxiliary equipment. We provide accurate design tools and propeller & stern gear technology for improved performance, fuel efficiency, longevity & reduced vibration, using computational fluid dynamics. We provide manufacturing, pattern making, casting, machining, and finishing services. We have equipment, CAD/CAM software & 3D modeling systems. Our marching services include CNC shaft machining, rudder machining, and axis P-bracket machining services.