Henri Marie Coandă (Romanian pronunciation: [ɑ̃ˈri ˈko̯andə]; 7 June 1886 – 25 November 1972) was a Romanian inventor, aerodynamics pioneer and builder of an experimental aircraft, the Coandă-1910 described by Coandă in the mid-1950s as the world's first jet, a controversial claim disputed by some and supported by others. He invented a great number of devices, designed a "flying saucer" and discovered the Coandă effect of fluid dynamics.