I was in school at Shoreham Grammar in the early 1950 s when the Vulcan flew over with the 4 Deltas in formation 3 red 707 A s and 1 blue 707 B . A truly awesome sight which I have never forgot as I believe they were on there way to the Farnborough Air show which attended a few years later and saw the Victor and Valiant as well as the Olympus Vulcan.