thx for the link! just spent the last hr reading about windmills. and although I live in a country full of them I've often wondered, but never really paused to ponder about the intricacies that go into windmill design. fascinating stuff!
the general acceptable rule is half your age +7 years. so 24+7 = 31no I didn't make this "rule", but it is generally accepted in society. but of course every place is different and has different norms.
this guy?