For all the angles of attack tested, surface fences are effective in reducing the spectral peak intensity. At the reported maximum tail buffet angle of attack, 22°, over 60% reduction in peak spectral intensity is achieved. Effectiveness is approximately linearly decreasing with angle of attack, with the exception of at 24° and 26°. This sharp decrease in effectiveness at these angles is due to a change in the spectral characteristics. Examining the spectra at these angles, the dominant peak nature is seen to be reduced and a dramatic rise in broad-band turbulence occurs. At 28°, the peak nature returns to the spectra. Surface fences are seen to be primarily effective at reducing the peak nature to the spectra and less effective at reducing the broad-band turbulence.