AST355: BIRTH OF A SUPER TSR2?

摘要

As ever, as soon as an aircraft was under development to meet an Air Staff Requirement, its replacement was already being examined. This was the case with the TSR2/F-111K that were under development to meet ASR343 (issues 2 and 3 respectively). In mid-1961 a draft Air Staff Target, AST354, was being discussed for a follow-on to TSR2. To avoid confusion with AST345, for what became the Harrier, the designation was changed to AST355.