1.2 TECHNICAL CONCLUSIONS ——- The technique of using vacuum pipes, as shown on Figure 18, in order to allow detailed studies of reaction characteristics is eminently satisfactory. The technique of using barges as zero positions, from which to detonate the devices, was practical and essential to the CASTLE Operation. It allowed great flexibility in the Operation, For instap e, the _jwas fired some ten miles from the : lanned position, and the was fired at Eniwetok instead of at Bikini. Neither change would havebeen possible with fixed land zero points. However, no attempt should be made to fire from a barge in the open ocean unless the problems of phenomenal waves produced by submarine earth movement (tsunami) are settled and the other operational problems are carefully studied, It can be concluded that CASTLE achieved the following: lennneemng 1, Established adequacyfor emergency capability on two weapons| pw 2. ~—-—ee- nh Peel! TERE va BOAMT Benita ye Demonstrated the practicability of using\ —— Provided experimental evaluation?_ _ Gave valuable experimental information which can be employed in the design of lighter thermonuclear weapons.