i think its time that we all started looking at the STT concept again. It is not so magical and distant - we've had daily supersonic flights a couple of decades now. So, when and how will the next supersonic transport prensent itself to the world. I personally think that the aircraft should only be used for long range flights. Nothing say, under a minium of something between 7-10 hours flight time by existing jets. For two reasons, but we don't need that sort of speed advantage on domestic flights or intra europain or North American etc, and to try and keep noise to a minium. But on routes like Sydney to LA, or Europe to Australia, or USA To Europe it would be nice. Mostly trans oceanic flights - that way no body is disturbed and we might be able to get away with not meating stage 3. It doesn't have to be as fast as Concode - 1500 kmh, or say something like mach 1.5 should still make a big time saving. But if we can go mach 2 lets do it. If its done on a larger scale, i am sure that economy supersonic class, would be more popular than business class on subsonic jets. If its at the right price! What does everybody else think? Is it time to think supersonic once more?