Ivett A. Leyva is a senior aerospace engineer in the Aerophysics Branch of the Space and Missile Propulsion Division of the Air Force Research Laboratory. There she focuses on the design of liquid rocket engines. She is an experimentalist, and currently she studies the effects of acoustic fields on coaxial jets. She also works in the area of hypersonic boundary layer transition. Previously, she was a senior aerodynamicist at Microcosm, Inc. where she was responsible for the development of ablative chambers and also performed numerical/analytical studies of Microcosm’s launch vehicles’ subcomponents. Prior to Microcosm she was employed at General Electric’s (GE’s) Global Research Center where she led the design, development, and testing of several pulse detonation concepts. There, she coordinated joint projects with scientists from the former Soviet Union. Dr. Leyva holds several patents in the U.S. and Europe in the area of propulsion. She served on the NRC Committee on Air Force/Department of Defense Aerospace Propulsion and the Steering Committee on Decadal Survey of Civil Aeronautics.