That was the first thing I thought when I saw these choppers cross over. They were huge and made a great sound/noise. Quiete heavy.
I am not sure for which reason the flew by, I guess a practice or surveillance action but it was a great view.
@s3rg3 and 
@exyle, who are witness with their developer group 
@blockbrothers for the Steem blockchain. If you want to support them, they would appreciate your vote here.