Operation Bowline | |
---|---|
Information | |
Country | United States |
Test site |
|
Period | 1968–1969 |
Number of tests | 47 |
Test type | cratering, underground shaft, tunnel |
Max. yield | 1.2 megatonnes of TNT (5.0 PJ) |
Test series chronology | |
The United States's Bowline nuclear test series [1] was a group of 47 nuclear tests conducted in 1968–1969. These tests [note 1] followed the Operation Crosstie series and preceded the Operation Mandrel series.
Name [note 2] | Date time (UT) | Local time zone [note 3] [2] | Location [note 4] | Elevation + height [note 5] | Delivery [note 6] Purpose [note 7] | Device [note 8] | Yield [note 9] | Fallout [note 10] | References | Notes |
---|---|---|---|---|---|---|---|---|---|---|
Spud | July 17, 1968 14:00:00.04 | PST (–8 hrs) | NTS Area U3fy 37°00′03″N115°59′59″W / 37.00095°N 115.99962°W | 1,178 m (3,865 ft) – 240.29 m (788.4 ft) | underground shaft, weapons development | 1.5 kt | [1] [3] [4] [5] | |||
Tanya | July 30, 1968 13:00:00.0 | PST (–8 hrs) | NTS Area U2dt 37°07′59″N116°04′59″W / 37.13317°N 116.08312°W | 1,271 m (4,170 ft) – 381 m (1,250 ft) | underground shaft, weapons development | 20 kt | Venting detected, 140 Ci (5,200 GBq) | [1] [3] [4] [5] [6] [7] | ||
Imp | August 9, 1968 13:00:00.0 | PST (–8 hrs) | NTS Area U2bj 37°09′42″N116°04′41″W / 37.16176°N 116.07808°W | 1,314 m (4,311 ft) – 178.46 m (585.5 ft) | underground shaft, weapons development | 350 t | Venting detected on site, 4.2 kCi (160 TBq) | [1] [3] [4] [5] [6] [7] | ||
Rack | August 15, 1968 17:00:00.0 | PST (–8 hrs) | NTS Area U9ap 37°07′25″N116°02′57″W / 37.12373°N 116.0491°W | 1,254 m (4,114 ft) – 199.72 m (655.2 ft) | underground shaft, weapons development | 1 kt | Venting detected, 10 Ci (370 GBq) | [1] [3] [4] [5] [7] | ||
Diana Moon | August 27, 1968 16:30:00.04 | PST (–8 hrs) | NTS Area U11e 36°52′38″N115°55′55″W / 36.87718°N 115.93195°W | 1,004 m (3,294 ft) – 242.01 m (794.0 ft) | underground shaft, weapon effect | 9 kt | Venting detected on site, 12 kCi (440 TBq) | [1] [4] [5] [6] [7] [8] | ||
Sled | August 29, 1968 22:45:00.04 | PST (–8 hrs) | NTS Area U19j 37°15′01″N116°20′52″W / 37.25028°N 116.34777°W | 2,057 m (6,749 ft) – 728.88 m (2,391.3 ft) | underground shaft, weapons development | 200 kt | [1] [3] [4] [5] [9] | |||
Noggin | September 6, 1968 14:00:00.13 | PST (–8 hrs) | NTS Area U9bx 37°08′09″N116°02′54″W / 37.13597°N 116.04824°W | 1,259 m (4,131 ft) – 581.99 m (1,909.4 ft) | underground shaft, weapons development | 120 kt | Venting detected, 16 Ci (590 GBq) | [1] [4] [5] [6] [7] [8] | ||
Knife-A | September 12, 1968 14:00:00.04 | PST (–8 hrs) | NTS Area U3fb 37°01′54″N116°00′45″W / 37.03178°N 116.01237°W | 1,190 m (3,900 ft) – 331.8 m (1,089 ft) | underground shaft, weapons development | 20 kt | [1] [4] [5] | |||
Stoddard | September 17, 1968 14:00:00.04 | PST (–8 hrs) | NTS Area U2cms 37°07′11″N116°07′42″W / 37.11981°N 116.12835°W | 1,370 m (4,490 ft) – 467.87 m (1,535.0 ft) | underground shaft, peaceful research | 31 kt | Venting detected, 16 Ci (590 GBq) | [1] [4] [5] [6] [7] [8] | Project Plowshare – clean excavation device development. | |
Hudson Seal | September 24, 1968 17:05:01.09 | PST (–8 hrs) | NTS Area U12n.04 37°12′17″N116°12′26″W / 37.20473°N 116.20727°W | 2,168 m (7,113 ft) – 344.42 m (1,130.0 ft) | tunnel, weapon effect | 20 kt | [1] [3] [4] [5] [9] | |||
Welder | October 3, 1968 14:00:00.04 | PST (–8 hrs) | NTS Area U3fs 37°02′48″N116°01′50″W / 37.04665°N 116.03048°W | 1,199 m (3,934 ft) – 117.66 m (386.0 ft) | underground shaft, safety experiment | less than 20 kt | [1] [4] [5] | |||
Knife-C | October 3, 1968 14:29:00.04 | PST (–8 hrs) | NTS Area U3er 37°01′33″N115°59′38″W / 37.02591°N 115.99396°W | 1,201 m (3,940 ft) – 301.44 m (989.0 ft) | underground shaft, weapons development | 3 kt | [1] [3] [4] [5] [8] | |||
Vat | October 10, 1968 14:30:00.04 | PST (–8 hrs) | NTS Area U9cf 37°08′00″N116°02′35″W / 37.13327°N 116.04318°W | 1,256 m (4,121 ft) – 194.92 m (639.5 ft) | underground shaft, weapons development | 1 kt | [1] [3] [4] [5] | |||
Hula | October 29, 1968 15:36:00.09 | PST (–8 hrs) | NTS Area U9bu 37°06′48″N116°02′30″W / 37.11321°N 116.0418°W | 1,254 m (4,114 ft) – 198.46 m (651.1 ft) | underground shaft, weapons development | 250 t | Venting detected on site, 7 Ci (260 GBq) | [1] [3] [4] [5] [6] [7] | ||
Bit - 1 | October 31, 1968 18:30:00.04 | PST (–8 hrs) | NTS Area U3gt 37°02′49″N116°01′49″W / 37.04701°N 116.03021°W | 1,199 m (3,934 ft) – 148.31 m (486.6 ft) | underground shaft, safety experiment | 1 kt | [1] [3] [4] [5] | simultaneous, separate holes. | ||
Bit - 2 | October 31, 1968 18:30:00.04 | PST (–8 hrs) | NTS Area U3gt 37°02′49″N116°01′49″W / 37.04699°N 116.03034°W | 1,199 m (3,934 ft) + | underground shaft, safety experiment | less than 20 kt | [1] [4] [5] | simultaneous, separate holes. | ||
File | October 31, 1968 18:30:00.04 | PST (–8 hrs) | NTS Area U3gb 37°01′01″N116°02′11″W / 37.01708°N 116.03649°W | 1,185 m (3,888 ft) – 228.95 m (751.1 ft) | underground shaft, weapons development | 7 kt | [1] [4] [5] | |||
Crew - 1 | November 4, 1968 15:15:00.09 | PST (–8 hrs) | NTS Area U2db 37°07′50″N116°05′15″W / 37.13043°N 116.08738°W | 1,287 m (4,222 ft) – 603.5 m (1,980 ft) | underground shaft, weapons development | 22 kt | [1] [3] [4] [5] [8] | Simultaneous, same hole. | ||
Crew - 2 | November 4, 1968 15:16:00.09 | PST (–8 hrs) | NTS Area U2db 37°07′50″N116°05′15″W / 37.13042°N 116.08738°W | 1,287 m (4,222 ft) + | underground shaft, weapons development | less than 20 kt | [1] [4] [5] | Simultaneous, same hole. | ||
Crew - 3 | November 4, 1968 15:16:00.09 | PST (–8 hrs) | NTS Area U2db 37°07′50″N116°05′15″W / 37.13042°N 116.08738°W | 1,287 m (4,222 ft) + | underground shaft, weapons development | less than 20 kt | [1] [3] [4] [5] | Simultaneous, same hole. | ||
Auger | November 15, 1968 15:30:00.04 | PST (–8 hrs) | NTS Area U3fx 37°02′52″N116°00′02″W / 37.04765°N 116.00058°W | 1,222 m (4,009 ft) – 240.62 m (789.4 ft) | underground shaft, weapons development | 1 kt | [1] [3] [4] [5] | |||
Knife-B | November 15, 1968 15:45:00.04 | PST (–8 hrs) | NTS Area U3dz 37°01′34″N116°02′03″W / 37.02609°N 116.03412°W | 1,188 m (3,898 ft) – 362.94 m (1,190.7 ft) | underground shaft, weapons development | 8 kt | [1] [3] [4] [5] [8] | |||
Ming Vase | November 20, 1968 18:00:00.03 | PST (–8 hrs) | NTS Area U16a.04 37°00′35″N116°12′26″W / 37.00973°N 116.2072°W | 1,931 m (6,335 ft) – 307.94 m (1,010.3 ft) | tunnel, weapon effect | 16 kt | [1] [3] [4] [5] [9] | |||
Tinderbox | November 22, 1968 16:19:00.04 | PST (–8 hrs) | NTS Area U9az 37°08′24″N116°02′35″W / 37.13987°N 116.04312°W | 1,261 m (4,137 ft) – 439.52 m (1,442.0 ft) | underground shaft, weapons development | 3 kt | Venting detected, 2 Ci (74 GBq) | [1] [3] [4] [5] [6] [7] | ||
Schooner | December 8, 1968 16:00:00.14 | PST (–8 hrs) | NTS Area U20u 37°20′36″N116°34′00″W / 37.34326°N 116.56661°W | 1,668 m (5,472 ft) – 111.22 m (364.9 ft) | cratering, peaceful research | 30 kt | Venting detected off site, 3.7 MCi (140 PBq) | [1] [4] [5] [6] [7] [10] | Plowshare – excavation experiment in hard, dry rock. | |
Bay Leaf | December 12, 1968 15:00:00.04 | PST (–8 hrs) | NTS Area U3gq 37°02′49″N116°01′52″W / 37.04702°N 116.03104°W | 1,199 m (3,934 ft) – 130.16 m (427.0 ft) | underground shaft, safety experiment | less than 20 kt | [1] [4] [5] | simultaneous, separate holes. | ||
Tyg - 1 | December 12, 1968 15:10:00.08 | PST (–8 hrs) | NTS Area U2dc1e 37°07′15″N116°04′53″W / 37.1209°N 116.08145°W | 1,273 m (4,177 ft) – 228.3 m (749 ft) | underground shaft, weapons development | 20 kt | Venting detected on site, 6.8 kCi (250 TBq) | [1] [3] [4] [5] [6] [7] | ||
Tyg - 2 | December 12, 1968 15:10:00.08 | PST (–8 hrs) | NTS Area U2dc2d 37°07′03″N116°04′49″W / 37.11758°N 116.08035°W | 1,270 m (4,170 ft) – 251 m (823 ft) | underground shaft, weapons development | 3 kt | Venting detected on site | [1] [4] [5] [6] [7] [11] | ||
Tyg - 3 | December 12, 1968 15:10:00.08 | PST (–8 hrs) | NTS Area U2dc3c 37°07′05″N116°04′40″W / 37.11804°N 116.07788°W | 1,268 m (4,160 ft) – 228.3 m (749 ft) | underground shaft, weapons development | 2 kt | Venting detected on site | [1] [4] [5] [6] [7] [11] | ||
Tyg - 4 | December 12, 1968 15:10:00.08 | PST (–8 hrs) | NTS Area U2dc4a 37°07′16″N116°04′45″W / 37.12124°N 116.0791°W | 1,272 m (4,173 ft) + | underground shaft, weapons development | 1 kt | Venting detected on site | [1] [4] [5] [6] | ||
Tyg - 5 | December 12, 1968 15:10:00.08 | PST (–8 hrs) | NTS Area U2dc5b 37°07′11″N116°04′39″W / 37.11985°N 116.07744°W | 1,270 m (4,170 ft) + | underground shaft, weapons development | 3 kt | Venting detected on site | [1] [4] [5] [6] | ||
Tyg - 6 | December 12, 1968 15:10:00.08 | PST (–8 hrs) | NTS Area U2dc6f 37°07′08″N116°04′58″W / 37.11879°N 116.08278°W | 1,273 m (4,177 ft) + | underground shaft, weapons development | 4 kt | Venting detected on site | [1] [4] [5] [6] | ||
Scissors | December 12, 1968 15:20:00.04 | PST (–8 hrs) | NTS Area U3gh 37°00′14″N116°02′24″W / 37.00391°N 116.04°W | 1,181 m (3,875 ft) – 240.58 m (789.3 ft) | underground shaft, weapons development | 1 kt | Venting detected on site | [1] [3] [4] [5] [6] [7] | ||
Benham | December 19, 1968 16:30:00.04 | PST (–8 hrs) | NTS Area U20c - 37°13′53″N116°28′28″W / 37.23142°N 116.47448°W | 1,887 m (6,191 ft) – 1,402.08 m (4,600.0 ft) | underground shaft, weapons development | 1.2 Mt | [1] [4] [5] | |||
Packard | January 15, 1969 19:00:00.07 | PST (–8 hrs) | NTS Area U2u 37°08′52″N116°04′00″W / 37.14787°N 116.06654°W | 1,288 m (4,226 ft) – 246.89 m (810.0 ft) | underground shaft, weapon effect | 10 kt | Venting detected on site, 7 Ci (260 GBq) | [1] [4] [5] [6] [7] [8] | ||
Wineskin | January 15, 1969 19:30:00.04 | PST (–8 hrs) | NTS Area U12r 37°12′33″N116°13′35″W / 37.20909°N 116.22627°W | 2,263 m (7,425 ft) – 518.16 m (1,700.0 ft) | underground shaft, weapons development | 40 kt | [1] [3] [4] [5] [9] | |||
Shave | January 22, 1969 15:00:00.04 | PST (–8 hrs) | NTS Area U3gk 37°00′56″N115°59′43″W / 37.01544°N 115.99516°W | 1,191 m (3,907 ft) – 240.75 m (789.9 ft) | underground shaft, weapons development | 2 kt | [1] [3] [4] [5] | |||
Vise | January 30, 1969 15:00:00.038 | PST (–8 hrs) | NTS Area U3ej 37°03′12″N116°01′48″W / 37.0533°N 116.02998°W | 1,204 m (3,950 ft) – 454.06 m (1,489.7 ft) | underground shaft, weapons development | 20 kt | [1] [4] [5] [8] [9] | |||
Biggin | January 30, 1969 15:17:00.12 | PST (–8 hrs) | NTS Area U9bz 37°08′00″N116°02′28″W / 37.13326°N 116.04113°W | 1,257 m (4,124 ft) – 242.32 m (795.0 ft) | underground shaft, weapons development | less than 20 kt | [1] [4] [5] | |||
Nipper | February 4, 1969 15:00:00.04 | PST (–8 hrs) | NTS Area U3gl 37°00′09″N116°00′36″W / 37.00262°N 116.01°W | 1,178 m (3,865 ft) – 240.73 m (789.8 ft) | underground shaft, weapons development | less than 20 kt | [1] [4] [5] | |||
Winch | February 4, 1969 15:00:00.04 | PST (–8 hrs) | NTS Area U3gf 37°00′34″N116°02′35″W / 37.00941°N 116.04304°W | 1,185 m (3,888 ft) – 240.63 m (789.5 ft) | underground shaft, weapons development | 600 t | [1] [3] [4] [5] | |||
Cypress | February 12, 1969 16:18:20.88 | PST (–8 hrs) | NTS Area U12g.09 37°10′08″N116°12′42″W / 37.16901°N 116.2116°W | 2,265 m (7,431 ft) – 359.66 m (1,180.0 ft) | tunnel, weapon effect | 15 kt | [1] [3] [4] [5] [9] | |||
Valise | March 18, 1969 14:30:00.12 | PST (–8 hrs) | NTS Area U9by 37°08′21″N116°02′30″W / 37.13909°N 116.04171°W | 1,261 m (4,137 ft) – 90.25 m (296.1 ft) | underground shaft, safety experiment | less than 20 kt | Venting detected | [1] [4] [5] [7] | ||
Chatty | March 18, 1969 14:40:00.43 | PST (–8 hrs) | NTS Area U2bn 37°09′44″N116°04′36″W / 37.16224°N 116.07679°W | 1,312 m (4,304 ft) – 194.77 m (639.0 ft) | underground shaft, weapons development | 800 t | Venting detected, 0.7 Ci (26 GBq) | [1] [3] [4] [5] [7] | ||
Barsac | March 20, 1969 18:12:00.04 | PST (–8 hrs) | NTS Area U3gc 37°01′19″N116°01′52″W / 37.02203°N 116.03098°W | 1,187 m (3,894 ft) – 304.13 m (997.8 ft) | underground shaft, weapons development | 10 kt | Venting detected on site, 43 Ci (1,600 GBq) | [1] [3] [4] [5] [6] [8] | ||
Coffer | March 21, 1969 14:30:00.41 | PST (–8 hrs) | NTS Area U2de 37°08′00″N116°05′15″W / 37.13325°N 116.0876°W | 1,291 m (4,236 ft) – 464.82 m (1,525.0 ft) | underground shaft, weapons development | 26 kt | Venting detected, 10 Ci (370 GBq) | [1] [3] [4] [5] [6] [7] | ||
Gourd-Amber - 1 | April 24, 1969 13:04:00.14 | PST (–8 hrs) | NTS Area U2bf 37°09′50″N116°04′50″W / 37.16393°N 116.08061°W | 1,320 m (4,330 ft) – 181.3 m (595 ft) | underground shaft, weapons development | 800 t | [1] [3] [4] [5] [11] | simultaneous, separate holes. | ||
Gourd-Brown - 2 | April 24, 1969 13:04:00.14 | PST (–8 hrs) | NTS Area U2bl 37°09′36″N116°04′55″W / 37.15998°N 116.08186°W | 1,317 m (4,321 ft) + | underground shaft, weapons development | less than 20 kt | [1] [4] [5] | simultaneous, separate holes. | ||
Blenton | April 30, 1969 17:00:00.04 | PST (–8 hrs) | NTS Area U7p 37°04′53″N116°00′53″W / 37.08145°N 116.01481°W | 1,255 m (4,117 ft) – 557.73 m (1,829.8 ft) | underground shaft, weapons development | 51 kt | Venting detected on site | [1] [4] [5] [6] [7] [9] | ||
Thistle | April 30, 1969 17:00:00.04 | PST (–8 hrs) | NTS Area U7t 37°05′25″N116°00′23″W / 37.09023°N 116.00651°W | 1,281 m (4,203 ft) – 560.47 m (1,838.8 ft) | underground shaft, weapons development | 38 kt | [1] [4] [5] [9] | |||
Purse | May 7, 1969 13:45:00.04 | PST (–8 hrs) | NTS Area U20v 37°16′58″N116°30′06″W / 37.28283°N 116.50153°W | 1,828 m (5,997 ft) – 598.75 m (1,964.4 ft) | underground shaft, weapons development | 90 kt | [1] [3] [4] [5] [8] | |||
Aliment | May 15, 1969 18:00:00.04 | PST (–8 hrs) | NTS Area U2gj 37°00′43″N115°59′09″W / 37.01185°N 115.98583°W | 1,207 m (3,960 ft) – 240.51 m (789.1 ft) | underground shaft, weapons development | 2 kt | [1] [3] [4] [5] | |||
Ipecac - 1 | May 27, 1969 14:00:00.04 | PST (–8 hrs) | NTS Area U3hka 37°00′54″N116°00′11″W / 37.01498°N 116.00292°W | 1,181 m (3,875 ft) – 124.18 m (407.4 ft) | underground shaft, safety experiment | less than 20 kt | Venting detected on site | [1] [4] [5] [6] [7] | simultaneous, separate holes. | |
Ipecac - 2 | May 27, 1969 14:00:00.04 | PST (–8 hrs) | NTS Area U3hkb 37°00′53″N116°00′03″W / 37.01482°N 116.00086°W | 1,182 m (3,878 ft) + | underground shaft, safety experiment | less than 20 kt | Venting detected on site | [1] [4] [5] [6] | simultaneous, separate holes. | |
Torrido | May 27, 1969 14:15:00.04 | PST (–8 hrs) | NTS Area U7w 37°04′30″N115°59′46″W / 37.07506°N 115.99617°W | 1,270 m (4,170 ft) – 514.72 m (1,688.7 ft) | underground shaft, weapons development | 22 kt | [1] [4] [5] [8] [9] | |||
Tapper | June 12, 1969 14:00:00.04 | PST (–8 hrs) | NTS Area U3go 37°00′32″N116°01′52″W / 37.00879°N 116.03109°W | 1,181 m (3,875 ft) – 303 m (994 ft) | underground shaft, weapons development | 10 kt | Venting detected on site | [1] [3] [4] [5] [6] [8] | ||
Bowl - 1 | June 26, 1969 16:00:00.13 | PST (–8 hrs) | NTS Area U2bo1 37°09′45″N116°04′46″W / 37.16244°N 116.07949°W | 1,316 m (4,318 ft) – 198.12 m (650.0 ft) | underground shaft, weapons development | 2 kt | [1] [3] [4] [5] | simultaneous, separate holes. | ||
Bowl - 2 | June 26, 1969 16:00:00.13 | PST (–8 hrs) | NTS Area U2bo2 37°09′39″N116°04′48″W / 37.16072°N 116.0801°W | 1,315 m (4,314 ft) + | underground shaft, weapons development | 3 kt | [1] [4] [5] | simultaneous, separate holes. |
Operation Tinderbox was a series of 14 nuclear tests conducted by the United States in 1979–1980 at the Nevada Test Site. These tests followed the Operation Quicksilver series and preceded the Operation Guardian series.
Operation Guardian was a series of 14 nuclear tests conducted by the United States in 1980–1981 at the Nevada Test Site. These tests followed the Operation Tinderbox series and preceded the Operation Praetorian series.
Operation Storax was a series of 47 nuclear tests conducted by the United States in 1962–1963 at the Nevada Test Site. These tests followed the Operation Fishbowl series and preceded the Operation Roller Coaster series.
The United States's Niblick nuclear test series was a group of 41 nuclear tests conducted in 1963–1964. These tests followed the Operation Roller Coaster series and preceded the Operation Whetstone series.
The United States's Mandrel nuclear test series was a group of 52 nuclear tests conducted in 1969–1970. These tests followed the Operation Bowline series and preceded the Operation Emery series.
The United States's Emery nuclear test series was a group of 16 nuclear weapons tests conducted in 1970 and 1971. These tests followed the Operation Mandrel series and preceded the Operation Grommet series.
Operation Quicksilver was a series of 16 nuclear tests conducted by the United States in 1978–1979 at the Nevada Test Site. These tests followed the Operation Cresset series and preceded the Operation Tinderbox series.
Operation Sunbeam was a series of four nuclear tests conducted at the United States's Nevada Test Site in 1962. Operation Sunbeam tested tactical nuclear warheads; the most notable was the Davy Crockett.
The United States's Praetorian nuclear test series was a group of 19 nuclear tests conducted in 1981–1982. These tests followed the Operation Guardian series and preceded the Operation Phalanx series.
Operation Fusileer was a series of 16 nuclear tests conducted by the United States in 1983–1984 at the Nevada Test Site. These tests followed the Operation Phalanx series and preceded the Operation Grenadier series.
Operation Grenadier was a series of 16 nuclear tests conducted by the United States in 1984–1985 at the Nevada Test Site. These tests followed the Operation Fusileer series and preceded the Operation Charioteer series.
Operation Charioteer was a series of 16 nuclear tests conducted by the United States in 1985–1986 at the Nevada Test Site. These tests followed the Operation Grenadier series and preceded the Operation Musketeer series.
The United States's Musketeer nuclear test series was a group of 14 nuclear tests conducted in 1986–1987. These tests followed the Operation Charioteer series and preceded the Operation Touchstone series.
The United States's Touchstone nuclear test series was a group of 13 nuclear tests conducted in 1987–1988. These tests followed the Operation Musketeer series and preceded the Operation Cornerstone series.
The United States's Cornerstone nuclear test series was a group of 11 nuclear tests conducted in 1988–1989. These tests followed the Operation Touchstone series and preceded the Operation Aqueduct series.
The United States's Grommet nuclear test series was a group of 34 nuclear tests conducted in 1971–1972. These tests followed the Operation Emery series and preceded the Operation Toggle series.
The United States's Arbor nuclear test series was a group of 18 nuclear tests conducted in 1973–1974. These tests followed the Operation Toggle series and preceded the Operation Bedrock series.
The United States's Bedrock nuclear test series was a group of 27 nuclear tests conducted in 1974–1975. These tests followed the Operation Arbor series and preceded the Operation Anvil series.
Operation Anvil was a series of 21 nuclear tests conducted by the United States in 1975–1976 at the Nevada Test Site. These tests followed the Operation Bedrock series and preceded the Operation Fulcrum series.
Operation Roller Coaster was a series of four nuclear tests conducted jointly by the United States and the United Kingdom in 1963, at the Nevada Test Site. The tests did not involve the detonation of any nuclear weapons. Instead, their purpose was to evaluate the distribution of radioactive particles in a "dirty bomb" scenario, or an inadvertent, non-nuclear detonation of a nuclear weapon, as well as to evaluate the effectiveness of storage structures in containing the explosion and the particles released. The tests followed the Operation Storax series and preceded the Operation Niblick series.