I live under the flightpath to the BAE plant at Warton in Lancashire, and about 2 weeks back there were two small corporate type jets doing circuits. One however seem to be carrying quite a bit of underwing ordenance. Both were definately doing laps into Warton, and after seeing another post about the radar calibration aircraft seen out and about it seemed they were of a similar type, but these definately had me stumped. The planes were black with red piping IIRC and were present for a couple of hours. Very stange, as I'm used to seeing all inds of weird and wonderful things going in and out of Warton, but I've never seen these before. Anyone any idea what they were and what they were doing?