NEPTUNE12 N-325 departed 12:27 back home, the BPO341 arrived around 12:30. Just before 11:45 NAF44 performed a low pass, visual Apache Q-17 - not visible on ADS-B somehow.
When I left at 11:45 there was not much activity by the American helicopters. I don't think they will leave today due to the weather here and in Germany.