Abstract
A High Speed Civil Transport configuration was tested in the National Transonic Facility at the NASA Langley Research Center as part of NASA''s High Speed Research Program. The primary purposes of the tests were to assess Reynolds number scale effects and high Reynolds number aerodynamic characteristics of a realistic, second generation supersonic transport while providing data for the assessment of computational methods. The tests included longitudinal and lateral/directions studies at transonic and low-speed, high-lift conditions across a range of Reynolds numbers from available in conventional wind tunnels to near flight conditions. Results are presented which focus on Reynolds number and static aeroelastic sensitivities of longitudinal characteristics at Mach 0.30 for a configuration without an empennage. A between Reynolds numbers of 30 to 40 millions, which is characterized by significantly earlier inboard leading-edge separation at the high Reynolds numbers. Force and moment levels changes but Reynolds number trends are consistent between the two states.
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