Hi guys, Great forum. I'm a frequent reader and first time poster. I'm having a great deal of difficulty getting my head around something I have been researching. If you have a wind turbine that is powered by wind (obviously) and causes the rotor with blades to spin at a constant 16.7rpm (which in turn turns the shaft), which is directly connected to a gear. The gear is then connected to another gear and they have a 1:100.5 ratio. The power output is then 2MW (with the final shaft spinning at around 1680rpm). How would you calculate the torque at the main shaft where the rotor is? I came to this value, but I have no idea whether it's correct or not. It just seems like a lot for something that's only initially turning at 16.7rpm (by virtue of around 18m/s of wind). Code (Text): Torque [Nm] = ( 9549 * Power [kW] ) / rpm T = ( 9549 * 2000 ) / 1680 = 11367.86Nm Then I multiplied 11367.86 * 100.5 (gear ratio) = 1.142MN Any help would be appreciate to preserve my sanity!