Aerodynamic prediction accuracy for a missile configuration with elliptical cross section

Experimental data from a wind tunnel test are examined to determine the unique aerodynamic characteristics of a missile body with elliptic cross section and are compared with results from aerodynamic prediction codes to establish the prediction accuracy of these codes with regard to alternate missile body cross sections. Data were collected at Mach numbers from 0.5 to 1.4 and angles of attack up to 20.0 deg. Measurements were made using a 6 component main balance. Analyses indicate significant variations in aerodynamic coefficients with regard to missile roll angle. Comparisons between experimental data and theoretical predictions are provided to illustrate the accuracy of the aerodynamic prediction programs Missile DATCOM and the WIND.