His work at this time on supersonic aircraft proved to be vital in the development of the joint French-UK project for the Concorde supersonic passenger aircraft.
Kanyang trabaho sa oras na ito sa supersonic sasakyang panghimpapawid proved na mahalaga sa pag-unlad ng pinagsamang French-UK proyekto para sa Concorde supersonic pasahero sasakyang panghimpapawid.