HH, was not the Frightening the result of pressing an experimental airframe in to service post-Sandys missile-fest?
While it survived into the late '80s it should really have been replaced by the F4 from the early '70s if the F4 hadn't been used to replace the F111 which should have replaced the TSR2 which should have replaced the Canberra until the AFVG didn't.
Or something like that