Wind turbine explodes and topples - GIF

[tonyfoale]

..... Third blade however launches good as vertical, not re-entering GIF frame til 3-4 seconds later. If the speed shown by the lower blades any indication, #3 near certainly flew up 1 blade length, because it appears to have flipped end for end! Holy Moley!
So Marv, what altitude can be calculated as attained?

I am not Marv but this is pretty elementary. The falling would have taken the same time as the time rising so if we say 2 secs to fall, the distance is 1/2 x a x t^2.
a = 9.807 so the altitude = 1/2 x 9.807 x 2^2 = 19.6 say 20 m. This ignores aerodynamic drag so if that is taken into account the height would be less.