I have been listening to the sweet sounds of Merlins and Allisons overhead the last week. Right now DM AFB is doing the annual certification for formation flights (heritage flights) for WW2 warbirds and current AF planes. So far there have been several 'stangs, one P40, a P38 flying with A10's, F22'2, F15's, F16's. Here in the RV camp on base they fly right overhead as they make a pass over what would be the crowd location.