If the military tried it I suspect it was on a very very small scale and they concreted over the grass in the centre and landed Harriers on it.
As for the EU link i suspect that is in the straight bananas category of Daily Mail lies or that it got mentioned in a few lines in a much wider study.
If they were that stupid how come so many of their members have better highways, railways, airports, education, health , standard of living etc etc etc than we do in the UK-sorry for the thread drift but I didnt start it.
I love the mental image 747 driver paints and would like to add the idea of Boeing having to make the proposed T7 stretch as an articultated version to make it work on such a layout