Two quotes from the link you provided. > In total, both the French and UK governments put in $1.44bn to get Concorde off the ground. $2.8bn went into realizing

Two quotes from the link you provided. > In total, both the French and UK governments put in $1.44bn to get Concorde off the ground. $2.8bn went into realizing the world's first mass supersonic transport. > At the end of it all, British Airways had gained £1.75bn in revenue with the Concorde against an operating cost of £1bn.