The purpose of this report is to present the results of a study of the accuracy and efficiency of "Staircase" methods of sensitivity testing when the probability-of-detonation curve is not normal. This report should be considered as supplementary to NAVORD Report 65-46* which deals with "Staircase" methods of sensitivity testing when the probability-of-detonation curve is normal.nThe investigation has been restricted to the seven recommended methods in NAVORD Report 65-46 for four non-normal distributions. A brief account of the nature of sensitivity testing and of "Staircase" methods is given in section 2. Section 3 contains an outline of the non-normality investigation. The computational procedures are discussed in section h. The results and conclusions are presented mainly in the form of graphs and tables and are discussed in section 5.
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