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Yaw and roll
A one-eighteenth scale model of an Air Force tailless aircraft recently underwent aerodynamic testing in Arnold Engineering Development Center’s four-foot transonic wind tunnel. The test was a technology demonstration entry in which conventional methods and Pressure Sensitive Paint were used to compare the effectiveness of a jet effects spoiler with a solid spoiler in yaw and roll control and stability of the aircraft. (Photos by Rick Goodfriend)

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Tags: Aerodynamics
Photo by: Rick Goodfriend  |  VIRIN: 080401-F-9114G-030.JPG