ANALYSIS OF SONIC BOOM MEASUREMENTS NEAR SHOCK WAVE EXTREMITIES FOR FLIGHT NEAR MACH 1. 0 AND FOR AIRPLANE ACCELERATIONS.

The sonic boom flight test program conducted by the NASA Langley Research Center over the instrumented Bren tower during the summer and fall of 1970 has provided unique data on sonic boom characteristics near the shock wave extremity. Initial analyses of these data were conducted by NASA Langley personnel and a more detailed analysis by the Boeing Company. This report presents the results of a further in-depth study of selected flights. The goals of this analysis were to define more exactly the sonic boom characteristics for each flight condition and to provide information that may be necessary to avoid objectionable sonic boom noise during future airplane operations.