Why do windmills typically have 4 blades, yet all modern wind turbines have 3?

Question

Why do windmills typically have 4 blades, yet all modern wind turbines have 3?

In: 9124

Answer 1

3 blades done properly works best

4 blades that form a cross is easy to put together

People who built windmills were more inclined to go for the easy to build version, as they weren’t doing precision engineering.

Answer 2

3 blades done properly works best

4 blades that form a cross is easy to put together

People who built windmills were more inclined to go for the easy to build version, as they weren’t doing precision engineering.