U2 @ Akrotiri
Whilst servicing a 56 F6 in a certain hangar at Akers in `74, I and my mates noticed a large black balloon at the other end, unattended.
Being curious we all had a good look around it inc. the basket.
Outside were several burly Americans in civilian clothing they had not noticed us go in! We completed the service and left, the look on their faces was a picture!
The balloon had two large gas tanks which could be mistaken for engines!