ARC-1979-AC76-0002-52 Lockheed YO-3A (USA 69-18010 NASA 718) TEST FLIGHT AT EDWARDS AIRFORCE BASE (FLIGHT RESEARCH CENTER). Rotorcraft Research. Acoustics Research Team from left to right: Don Boxwell, Fred Schmitz, Bob Williams, Lee Jones, Bob George, Vance Duffy. NASA SP Flight Research at Ames: 57 Years of Development and Validation of Aeronautical Technology Fig. 142