Boris Johnson gave a firm warning to those in Government who want a third runway at Heathrow: "Forget it - it will not be built."
The Mayor of London, in his speech about the future of flying in the south east said said Heathrow was failing as a hub airport and Britain is 'losing out' as a result.
He claims the Governement has better options - to expand Stansted or to build a new airport in the Thames Estuary.
But what of the timings of this latest attack, coming so close to his party's annual conference? Our Political Correspondent Simon Harris reports.
Johnson on new hub: it is exactly what our Victorian ancestors would have done.@londontonight
Johnson believes the government has been "bewitched" by the case for a third runway. @londontonight
Johnson: Heathrow would have a viable future as a business and short-haul airport. @londontonight
Johnson: "I have listened to the roar and howl of the planes passing over where I live." @londontonight
Johnson: Of all the victims of aircraft noise in Europe, one third live around Heathrow. @londontonight
Johnson to third runway supporters: "Forget it, it will not be built." @londontonight
Johnson: Munich serves more international destinations than Heathrow. @londontonight
Johnson: "No European country is being so blind or complacent." @londontonight "