Yes, it was done on a fast track schedule.
In January, 1965 I wrote the first LSR proposal, "Development of a Land Speed Record Vehicle of Mach One Capability".
July, 1966 the X-1 rocket dragster was tested at the Great Lakes Dragway in Union Grove, Wisconsin.
February, 1968 I wrote the 2nd proposal, "LNG Goes Supersonic" to the American Gas Association for sponsorship.
July 30, 1968, IGT authorized sponsorship of The Blue Flame LSR project.
September, 1968 Dr. T. Paul Torda and Dr. Carl Uzgiris, professors of Mechanical and Aerospace Engineering at IIT in Chicago agreed to consult on The Blue Flame Design with engineering students working on Masters Degrees.
January, 1969 wind tunnel testing of scale models at Ohio State University commenced.
March, 1969 fabrication of The Blue Flame began in Milwaukee, Wisconsin.
July 27, 1970 final static testing of The Blue Flame at Great Lakes Dragway.
September 12, 1970 The Blue Flame and crew depart Milwaukee for Bonneville Salt Flats.
October 23, 1970 The Blue Flame set the absolute world land speed record 630.388mph in the flying start kilometer on the 25th run. Snowed the next day.