The Kaplan turbine was developed for low head sites from 1.5 to 6 meter head. The Kaplan turbine is able to extract power from the full head (water to water) of a site which makes it more efficient than a Cross Flow turbine. Technical Documentation (2.4 MB) NTNU Project Thesis, Efficiency Test (5.4 MB) NTNU Master Report, Efficiency Test (8.2 MB) NTNU Master Report, Turbine Flow and Efficiency Measurement (22MB) Kaplan Drawings (You will be asked to register first)