This report describes the results of 42 tests involving direct impacts on the head, performed on fresh, unembalmed, perfused cadavers, helmeted or not helmeted, by means of a free-fall procedure.
Three main kinds of impact were investigated: frontal, temporal-parietal, and frontal-facial.
The results yield a typology of lesions (associated with various test conditions) that differs from the one described in earlier, similar reports published by A.M. Nahum and R.L. Stalnaker.
The measurements confirm a tolerance level of HIC>1500 in the case involving skull impacts under the conditions specified in the text.