Just an aside, but when I were a young lad, the air traffickers at Cairns were pretty good at doing the impossible all day long in very busy airspace before they got radar, but if overseas controllers say it's impossible it must be.
And before you say it's outdated 30 year old blah blah, you posed the question in those terms Dick. No, but hang on, it was unproven and experimental, so it can't have worked successfully then ...
