The plane you saw near Newbury was probably a 13Sqn GR4 from Marham involved in the Staff college demo between Everleigh and Netheravon on Salisbury plain. Jaguars and GR4s involved all day apparently. As were Helos yesterday (apaches, merlins etc) and C130s.
As for the F3s 'turning and burning' over Cheltenham ( i think?) area, there were a few 111Sqn F3s that turned up at that 'secret' airfield in Oxfordshire today, and tonight they were airborne, some routing east, while one routed to St Mawgan for a play.
Razor61
