Delft, The Netherlands,

Why do windmills have three blades?

60 seconds video lecture

This video is about the number of blades on wind turbines. Traditional Dutch windmills used to have four blades, so why do modern turbines have three? Watch this video to learn the answer to this question and more!

We are pleased to present to you this new 60 second video lecture: 'Why do windmills have three blades?' It is the second one in a series of concise video lectures on offshore energy. At DOB-Academy we have a passion for sharing knowledge and that is why we created this series. Easy to understand yet interesting for anyone from high school student to industry expert. Is there a subject you would like to learn more about in 60 seconds? Please let us know at and we will consider adding it to our series.