The RHL Cross Flow turbine is the main type of turbine used in Afghansitan.  RHL uses 3 classes of cross flow turbines. TMT:   Traditional mill turbine. This is a light duty turbine HKT:   Hindu Kush turbine. This is a medium duty turbine PT:      Pamir turbine.  This is a heavy duty turbine Technical documentation(3MB) Laboratory test anouncement NTNU research paper about RHL 79% efficiency Crossflow turbine NTNU Project Thesis, Efficiency Test (4.9 MB) NTNU Master Report, Investigation of Flow through the Turbine (19MB) NTNU Thesis, Strenght of cross flow turbine shaft(18 MB) RHL/IAM Cross Flow turbine drawings (You will be asked to register first) Disclaimer / User responsibility