“While occasionally this phenomenon can be explained away, sometimes the facts can't be denied that jet black, unmarked helicopters are seen in relation to some rather unusual occurences. The incident at Marland Acre farms was followed with sightings of such an aircraft…”
“The phantom helicopter of Walderslade, Kent, is another such incidence. The authorities, in all these cases, denied knowledge of such an aircraft, as did local air traffic control, stating that the reason it was seen flying so low to ground level may have been to keep under their radar…”
Black, unmarked helicopters are a constant source of rumour and discussion.