Rolled out at BAC Filton in March, the Concorde 01, G-AXDN, is to pre-production standard, with a lengthened forward fuselage, revised visor and other significant internal changes, hut without some of the modifications planned for the production aircraft.

This model of Concorde, displayed at the Paris Air Show, clearly illustrates the revised arrangement of transparencies in the droop nose of the production version.

The major structural breakdown of the production-model Concorde

The production configuration of the Concorde is shown here, with the lengthened front and rear fuselage, TRA nozzles and small changes in the wing tips and leading edges.

The Bristol 223 in 1961 and (below) the Sud Super Caravelle of about the same date. The striking similarity of these two independent designs, which were merged to become Concorde, is obvious.

The final configuration of the Bristol Type 198 featured a low-mounted narrow-delta wing and six engines in two underwing groups.

Another Type 198 configuration studied in 1959, with six engines, a Gothic wing and no foreplane.

The final configuration of the Bristol Type 198 featured a low-mounted narrow-delta wing and six engines in two underwing groups.

The Type 198 of October 1958, with eight engines, a high-mounted slender delta wing and a two-piece foreplane of Gothic planform.

One of the earliest project studies in the Bristol 198 series was this medium-range SST with a modified M-wing, investigated as part of the work done for the Supersonic Transport Aircraft Committee during 1957.