JSF-TC,
The names and contact details posts in this old thread (which I posted earlier on this thread) might help.
Blackburn Buccaneer - Aerodynamic parameters/Flight Test results
In particular:
“
The man you need to contact is John Cowper in the Brough Heritage Group. He was the aerodynamicist responsible for stability and control for many years. The group normally come in to Brough on a Thursday late morning/early afternoon and I still occasionally go and ask him questions (on Hawk) when I am really stuck for information.”