PMN,ref OAC all hydrulic fluids,oils,and fuel were drained along with escape slides removed.The aircraft will never run on ground power as the gppu (ground power protection unit) was removed by BA.None of the aircraft’s systems are allowed to be reactivated ie using the original hydrulic/eletrical systems for health and safety.What must be remembered is BA still own all of their Concorde’s and are all loaned to the various museums with clauses on what can and cant be done to them.

Just as an example Concorde’s hydrulic system runs at 4,000psi all other subsonic aircraft run at 3,000psi.

I realise fully it would never happen, I was just interested to find out whether it were technically possible and whether all the relevent bits were still there. To be honest it never actually occurred to me that BA still owned them. Interesting!

Thanks for the info anyway. I was hoping you’d see this thread and respond! 🙂

Paul