I think your mental model of wind turbine sizes is a bit off: the rotation speed is basically dictated by the need to keep blade tips moving slower than the spe

I think your mental model of wind turbine sizes is a bit off: the rotation speed is basically dictated by the need to keep blade tips moving slower than the speed of sound, which is why you see newer/larger turbines going slower than older/smaller turbines. Most modern turbines operate with tip speeds around 200m/s, corresponding to around 450 mph.