The same photo of the "aircraft" (named, it was the "Scott Furlong Predator") suspended by cables from a crane appeared in Flight magazine of the time, along with some accompanying notes
1964 | 2616 | Flight Archive
I'll be there were some suckings of breath in various drawing offices in Weybridge, Hatfield, Woodford, Filton, etc the day that came out in 1964.