Unsure I like the idea of my aircraft going around the bend on trying to take off or land. I'll let them test out the idea on other test crash dummies first.
It said it was capable of doing the work of four standard runways and because the planes can come and go from any point around the circle there is less noise pollution for any one area. Surely it would mean that although the noise may be slightly less or less frequent for people, more people world be effected? Spread the misery rather than eliminate it.
What about when a heavy aircraft has major technical problems, needs to make an urgent emergency landing and may slide on landing - perhaps with a collapsed undercarriage?
Gromit,
There was a very interesting documentary about circular(and other bizarre) runway ideas some two years ago on BBC2. It came to the conclusion that they were interesting ideas,but would never work effectively.Given our present health and safety rules, it seems impossible that they would get the go ahead now.
As Hopkirk mentioned, an aircraft landing at say 120 knots with a collapsed undercarriage will travel in a straight line since Isaac Newton will now be in the left-hand seat.