for later utilization. See also Draft tube Evolution from Francis turbine to Kaplan turbine Hydropower Jonval turbine Kaplan turbine Pelton wheel Sensor fish, a device used to study the impact of fish travelling through Francis and Kaplan turbines Citations General bibliography Layton, Edwin T. From Rule of Thumb to Scientific Engineering: James B. Francis and the Invention of the Francis Turbine. NLA Monograph Series. Stony Brook, NY: Research Foundation of the State University of New York, 1992. . S. M. Yahya, page number 13, fig. 1.14. Water turbines English inventions American inventions