I have often used wind turbines for wind reference. The vast majority of them are “facing” into the wind. And even if I should stumble upon one of those with the blades one the back of the nacelle – I don’t think that it will lead me to believe that there has been a 180 degrees change of wind.
That said, in low winds (>5kts) they tend to get confused and end up facing in random directions.
Speechless Two; I know that you wrote it tongue-in-cheek, but I have to comment that when hoisting to a wind turbine the blades are locked in position and cannot suddenly spin themselves to destruction.
By the way, I took that first picture of yours – funny to see it appear here. Not that I mind at all.
Regarding track and balance: They are balanced by adding weights at the blade root – not flimsy weights like in the helicopter business but weights of many kilos. They are not adjusted for tracking as such.
One way they show the actual wind is, when they are on fire
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When thinking about it – you can say the same about helicopters…
RD
