Felix's notes: I do not know the actual date of this or who took the photographs.
We were clearly using stepped line lengths so the fourth flier was out of shot in the stack image! The lines are visible and the edge of a shadow.
It looks as if the kites are being flown in a fairly strong breeze give the postures of the fliers.
The kites were the Tim Benson Phantoms that the team acquired after meeting him at an event at Birmingham in 1989.