At the risk of being got off the target, which of course we have been, you say you were 1/4 mile away from this Vulcan - so far away you could not actually count the number of men involved in the actions around it, yet you could clearly make out a five foot spherical object with coloured cables and pipework attached to it being unloaded partially behind a screen? Hmmm. That is not including the fact(?) that no Vulcan Squadrons were operating from there to the best of my limited research. I am not familiar with Farnborough so cannot comment on the actual distance from your tree line to the 'research centre' so I would be interested to hear any comments from anyone other than Andy on the quoted distance.