FIGURE 9: There are 4 data files in this subdirectory. The files are named DBAS10F.DAT, DLE10D10.DAT, DBAS20F.DAT, and DLE10D20.DAT. The BAS files contain the equilibrium wall pressure autospectra in dimensional form, at 10 and 20 ft/sec free stream velocities. The LE files contain the perturbed autospectra at the two velocities with the LEBU located 10delta upstream. First column is dimensional frequency, second column is dimensional spectral level in dB.