C CHAPTER 17 that have been held, and at only 8 of the “water surface" (barge ) shots, although 35 barge test shote have been detonated. Table 17-2, Water shots for which nuclear-radiation data are available, United States | Operation Water- Surface Bursts Shot 2 (Romeo) Castle C TMD) 3/1954 11 2ho 5/1954 13.5 250 4 (Union) 4/1954 6 (Nectar) 5/1954 5 (Yankee) Flathead Dakota Redwing Date Navajo Tewa = areal 7 260 1.7 120 (in Ivy-Mike crater) eee 195 115, ud 7/1956 25 7/1956 215 “Shot Dakota occurred later at the same location eas Shot Flat- head, but no depth measurements were made after Shot Flathead. Underwater Bursts Operation Crossroads Hardtack Shot Date Baker 7/1946 Wahoo 4/1958 Umbrella Wigwam Yield (KT) 6/1958 5/1955 Burst Depth (Ft) Water Depth (Ft) 90 180 500 3000 150 32 150 2000 15000 Great Britain Operation Shot C: Date % aay Location 17-17 _— - arene ee we re He Py Gr Se RR mn + ote