Originally Posted by
chevvron
I believe there was a 10 cm Plessey AR15 at Luton which wouldn't interface with other LATCC radars so it was just switched off and left there.
There was, god bless its valves. I held the first UK validation on an AR15 in 1974. The antenna was on a small tower but we were already over 500ft up so the antenna was angled half a degree down. Fantastic low level coverage. Great radar. We were the second airfield in the country, after Heathrow, to get SSR.