UFO sighting eyewitness report: Found this rare footage in Grandads loft after he died. He told me about this when I was a child, filmed in 1972 in Burgley park, Stamford, Lincolnshire in summer 1972. 1 mile away from RAF Wittering base! Was an old camera so unfortunately no audio. Is this a ufo, sky serpent or test flight for new military vehicle?