Interesting seeing the Lockheed 12 G-AGTL on that page, this was originally registered by Sidney Cotton for his, um, perfectly innocent flights over pre-war Germany. I remember seeing it at Yeovilton 40+ years ago as F-BJJY (and I think also at Gatwick at some point around then) and these days its better known as F-AZLL having been owned for a while by Bernard Chabbert.