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  1. The Okie Corral
    The captions are all in Russian, so I can't make them out. But I imagine it's probably a mine ventilation fan of some sort. Or maybe a smoke exhaust fan for a subway? I would love to know what airspeeds are clocking out of that thing. Here's a couple of "smaller" ones, but no less powerful...
  2. The Okie Corral
    I've never seen a non-wind-tunnel fan this powerful before in my life. It's so powerful, that it sucks the dust from the neighboring fan shafts out, and actually sucks air to the point where the other propellers turn. Anyone know what airport these are at? I don't even want to know what the...