File:James Doolittle and Frederick Crawford Tour Lewis (GRC-1958-C-48117).jpg

English: National Advisory Committee for Aeronautics (NACA) Chairman James Doolittle and Thompson Products Chairman of the Board Frederick Crawford receive a tour of the Lewis Flight Propulsion Laboratory during the last few months of the NACA. Lewis mechanic Leonard Tesar demonstrates the machining of a 20,000-pound thrust rocket engine for the group in the Fabrication Shop. From left to right, Associate Director Eugene Manganiello, researcher Edward Baehr, Doolittle, NACA Executive Secretary John Victory, Crawford, Tesar, Lewis Director Raymond Sharp, and mechanic Curtis Strawn. Doolittle began his career as a test pilot and air racer. In 1942 he famously flew a B-25 Mitchell on a daring raid over Tokyo. Doolittle also worked with the aviation industry on the development of aircraft fuels and instrumentation. After the war he served as vice president of Shell Oil and as a key government advisor. In this capacity he also served on the NACA’s Executive Committee for a number of years and served as its Chairman in 1957 and 1958. Tesar was a supervisor at the Sheet Metal Shop in the Fabrication Building. He joined the laboratory in 1948 and enrolled in their Apprentice Program. He graduated from the school three years later as an aviation metalsmith. The Fabrication Branch created a wide variety of hardware for the laboratory’s research projects. Requests from research divisions ranged from sheetmetal manufacturing for aircraft to fabrication of rocket engines. Tesar retired in 1982 after 37 years of service.