ascertain whether or not the precursor will enhance damage. In view of the development of high-yield weapons, it is desirable to know the effect on damage of the positive duration so that the present damage criteria can be extended for range of weapons approximately from 0.1 KT up to and including 10 MI. There is no experimental data available beyond a yield of approximately 60 KT or below 1 KT. The study undertaken at Ballistic Research Laboratories iadicated that as the yield of weapon increases the pressure level for specific damage decreases for drag sensitive targets. 14

Select target paragraph3