PRESSURE DATA FOR FOUR ANALYTICALLY DEFINED ARROW WINGS IN SUPERSONIC FLOW.

To provide experimental data for comparison with newly developed finite-difference methods for computing supersonic flows over aircraft configurations, wind-tunnel tests were conducted on four arrow-wing models. The models were machined under numeric control to precisely duplicate analytically defined shapes. They were heavily instrumented with pressure orifices at several cross sections ahead of and in the region where there is a gap between the body and the wing trailing edge. The test Mach numbers were 2. 36, 2. 96, and 4. 63. Tabulated pressure data for the complete test series are presented along with selected oil-flow photographs. Comparisons of some preliminary numerical results at zero angle of attack show good to excellent agreement with the experimental pressure distributions.