Concorde FBW
Salute!
Not sure how much "backup" the Concorde had, but it sure as hell had a lotta FBW concepts implemented.
Our Viper had ZERO mechancial connections of any kind to the flight control surfaces.
Pprune has a great thread about the Concorde, including engineers and at least two pilots contributing.
Thanks for calling me out, Tofeez.
old Viper pilot sends....