Setting up for a wedding gig, I saw one coming across Chesapeake Bay towards Kent Island -- a lot smaller than that one, F0...maybe even F1. However, I remember the sound -- like a train, just like everyone said it would be. Also there was a flock of seagulls caught up in the wind field. Looked like a bunch of confetti. I had to take cover as it was headed our way. I ended up helping the venue escort guests to a safe area.