Operation TUMBLER-SNAPPER, Nevada Proving Grounds, April-June 1952, Project 1.13 Measurement of Air Blast Pressure VERSUS Time

摘要

Ground level air blast pressures were measured by the David Taylor Model Basin on the main blast line and in aircraftf parking areas for Shots 2, 3, and 4. The purpose of these measurements was two-fold: (a) to provide blastpressure data at specific locations of especial interest to Program 3 in correlating damage to aircraft on the ground and (b) to provide blast pressure data suitable for a check of azimuth symmetry and for comparison with data obtained by other activities participating in the TUMBLER-SNAPPER series of tests. Eight interferometer (Buck) gages and eight David Taylor Model Basin capacitance gages were used in the operation. Reproductions of the recorded pressure-time curves are placed in the main body of the report. In addition, peak pressure values, positive and negative phase durations, and positive and negative impulse values are tabulated for each shot. Self-contained gage stations were used to make these measurements, i.e., recordings were made at each gage locaton rather than at a central recording station. This technique appears to be quite successful and requires no costly cable trenches. The development of more compact appratus specifically designed for mounting in a small cylindrical housing underground is desirable(Author)