Nothing more substantial than artists' impressions - this, the 250-seat European PERS - are available to illustrate a second-generation supersonic transport 30 years after Concorde's maiden flight. Development of a potential US replacement has just been delayed by 10 years (1999)

Common configuration agreed by Aerospatiale, BAe and DaimlerChrysler Aerospace for the European Supersonic Research Programme (ESRP) advanced supersonic transport (1994)