Buccaneer as TSR 2 replacement
"Blackburns themselves were convinced that what they had appeared to be an almost ready-made replacement for the TSR2: an aircraft that was well beyond its basic development stage and needing only limited funds in order to take it to the next phase of development.
Although this was an admirable attempt by Blackburns to compete with BAC aircraft, it seemed that what was actually put forward appeared to be little more than an optimistic sales campaign and was never going to be technically feasible, So many radical design changes would have been required to give it both the necessary speed and range that ultimately it would have resulted in a Buccaneer that bore little resemblance to the original submission."
from TSR-2 F Barnett-Jones