Funnily enough, the first google hit on AST was this forum thread-- D**n Nimble Bots !!
Wiki had... { disclaimer: your mileage may vary }
http://en.wikipedia.org/wiki/Supersonic_transport
:
Current research and development
In April 1994, Aerospatiale, British Aerospace and Deutsche Aerospace AG (DASA) created the European Supersonic Research Program (ESRP) with plans for a second-generation Concorde to enter service in 2010. The plane was to be called the Avion de Transport Supersonique Futur. In parallel, SNECMA, Rolls-Royce, MTU München and Fiat started working together in 1991 on the development of a new engine. Investing no more than US$12 million per year, mainly company funded, the research program covers materials, aerodynamics, systems and engine integration for a reference configuration. The ESRP exploratory study is based on a Mach 2, 250-seat, 5,500 nautical mile-range (10,186 km) aircraft, with the baseline design looking very much like an enlarged Concorde with canards.
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