Aircraft was a Tornado GR4 from one of the squadrons in Scotland - it was doing a low-level fly past at the Defence Fuels Group West Moors (about 4 nm N of EGHH) for the summer cocktail party and sunset ceremony - initial fly past at 2000L exactly as the Union Jack was being lowered.
It flew past once, turned around, flew over again and as it passed overhead went vertical up to 20,000ft +.
It was followed a bit later by a low level fly past from a C130J which was going to drop the Falcons - except for the 700ft low cloud which kept interfering!
It looked pretty impressive from the ground!
TZ