Fascinating stuff reading about the British certification of the 707. I wonder how this would go these days with TTIP? I wonder if the manufacturer would be suing the CAA for something or other because US certification criteria was not quietly and immediately accepted?
As an aside, I far prefer gas guzzling, noisy, smoke belching aeroplanes which looked good and went fast. Far more character than the insipid crap that staggers about at .78 and flies itself you get today. Yes I know.