S (stall place): in this issue the turbine velocity is zero plus the impeller is rotating; the effectiveness inside the stall stage is minimum amount, all over 50%, which suggests that half of the ability coming from the engine is shed as a result of friction and dissipated as heat; https://torque-converter-clutch08528.ezblogz.com/65868887/not-known-factual-statements-about-torque-converter-clutch