Smith) (born July 2, 1911 – May 1, 1997) was an important figure in the aerodynamics field at Douglas Aircraft from 1938 to 1975 and an early pioneer in the area of computational fluid dynamics.

While at Caltech, he built and tested a number of rockets with Professor Theodore von Kármán's students Frank Malina, Edward Forman, Jack Parsons and Tsien Hsue-shen.

During his time there, he worked on aerodynamic and preliminary design problems of the DC-5, SBD Dauntless, DB-7 Boston, A-20 Havoc and A-26 Invader.

He was responsible for the detailed aerodynamic design of the D-558-I Skystreak, which for a period held the world speed record.

For a period, the F4D-1 held six FAI World Records, including absolute speed and climb performance.

In this period, he oversaw development of practical methods of analyzing laminar and turbulent boundary layer flow, new and improved static pressure probes, the hydrogen bubble technique of flow visualization, potential flow analysis, analysis of stability and transition of boundary layers and the en method of predicting boundary layer transition.