The United States's Flintlock nuclear test series[1] was a group of 47 nuclear tests conducted in 1965–1966. These tests [note 1] followed the Operation Whetstone series and preceded the Operation Latchkey series.
| Operation Flintlock | |
|---|---|
 Flintlock Long Shot, 80kt. | |
| Information | |
| Country | United States |
| Test site |
|
| Period | 1965–1966 |
| Number of tests | 47 |
| Test type | underground shaft, tunnel |
| Max. yield | 365 kilotonnes of TNT (1,530 TJ) |
| Test series chronology | |
Nuclear tests
Duryea
Following emplacement of the Duryea nuclear device and stemming of the shot hole, several instrument cables failed and a plan was devised to repair them. A shaft designated U20a1 was drilled 18 metres (59 ft) southwest of the original emplacement hole designed U12a, to a depth of 149 metres (489 ft), and then a tunnel between U12a and U12a1 was constructed, allowing for repair of the cables.[2]
List of nuclear tests
| Name [note 2] | Date time (UT) | Local time zone[note 3][3] | Location[note 4] | Elevation + height [note 5] | Delivery [note 6] Purpose [note 7] | Device[note 8] | Yield[note 9] | Fallout[note 10] | References | Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| Izzer | July 16, 1965 13:04:24.1 | PST (–8 hrs) | NTS Area U9bp 37°06′54″N 116°01′59″W / 37.11495°N 116.03304°W | 1,273 m (4,177 ft) – 163.68 m (537.0 ft) | underground shaft, weapons development | less than 20 kt | Venting detected | [1][4][5][6] | ||
| Pongee | July 22, 1965 13:21:08.11 | PST (–8 hrs) | NTS Area U2ah 37°07′54″N 116°04′04″W / 37.13175°N 116.06773°W | 1,274 m (4,180 ft) – 135.03 m (443.0 ft) | underground shaft, weapons development | less than 20 kt | Venting detected on site, 6 Ci (220 GBq) | [1][4][5][6][7] | ||
| Bronze | July 23, 1965 17:00:00.04 | PST (–8 hrs) | NTS Area U7f 37°05′53″N 116°02′01″W / 37.09794°N 116.03374°W | 1,257 m (4,124 ft) – 530.96 m (1,742.0 ft) | underground shaft, weapons development | 67 kt | Venting detected, 1.7 kCi (63 TBq) | [1][4][5][6][7][8] | ||
| Mauve | August 6, 1965 17:23:30.04 | PST (–8 hrs) | NTS Area U3dp 37°01′04″N 116°02′27″W / 37.01771°N 116.04089°W | 1,185 m (3,888 ft) – 321 m (1,053 ft) | underground shaft, weapons development | 18 kt | [1][5][6][8][9] | |||
| Ticking | August 21, 1965 13:43:08.15 | PST (–8 hrs) | NTS Area U9bj 37°06′45″N 116°01′37″W / 37.11258°N 116.02689°W | 1,288 m (4,226 ft) – 210.31 m (690.0 ft) | underground shaft, weapons development | 250 t | Venting detected, 2.6 kCi (96 TBq) | [1][4][5][6][9] | ||
| Centaur | August 27, 1965 13:51:13.11 | PST (–8 hrs) | NTS Area U2ak 37°08′14″N 116°04′15″W / 37.13729°N 116.07097°W | 1,283 m (4,209 ft) – 171.91 m (564.0 ft) | underground shaft, weapons development | 1 kt | Venting detected on site, 57 Ci (2,100 GBq) | [1][4][5][6][7][10] | ||
| Moa - 1 (with Screamer) | September 1, 1965 20:08:00.04 | PST (–8 hrs) | NTS Area U3ed 37°02′14″N 116°00′53″W / 37.0373°N 116.01472°W | 1,194 m (3,917 ft) + N/A | underground shaft, weapons development | 2.5 kt | Venting detected on site | [1][5][6] | simultaneous, separate. | |
| Screamer - 2 (with Moa) | September 1, 1965 20:08:00.04 | PST (–8 hrs) | NTS Area U3dg 37°01′23″N 116°00′36″W / 37.02292°N 116.00987°W | 1,184 m (3,885 ft) – 301.9 m (990 ft) | underground shaft, weapon effect | 9 kt | Venting detected on site, 63 kCi (2,300 TBq) | [1][4][5][6][7][8] | simultaneous, separate. | |
| Elkhart | September 17, 1965 15:08:23.1 | PST (–8 hrs) | NTS Area U9bs 37°06′40″N 116°02′08″W / 37.11098°N 116.03548°W | 1,267 m (4,157 ft) – 219.46 m (720.0 ft) | underground shaft, weapons development | 6 kt | Venting detected, 560 Ci (21,000 GBq) | [1][4][5][6][7][8] | ||
| Long Shot | October 29, 1965 21:00:00.08 | NST (–11 hrs) | Amchitka Island, Alaska 51°26′14″N 179°10′49″E / 51.43709°N 179.18032°E | 42 m (138 ft) – 700 m (2,300 ft) | underground shaft, joint verification | 80 kt | [1][6] | Designed to test detection of underground nuclear tests; see Vela Uniform. | ||
| Sepia | November 12, 1965 18:00:00.05 | PST (–8 hrs) | NTS Area U3en 37°03′00″N 116°01′22″W / 37.04996°N 116.02282°W | 1,202 m (3,944 ft) – 241.19 m (791.3 ft) | underground shaft, weapons development | 7 kt | I-131 venting detected, 0.0011 Ci (0.041 GBq) | [1][4][5][6][7][8] | ||
| Kermet | November 23, 1965 18:17:32.1 | PST (–8 hrs) | NTS Area U2c 37°09′43″N 116°04′18″W / 37.16187°N 116.0718°W | 1,304 m (4,278 ft) – 198.12 m (650.0 ft) | underground shaft, weapons development | 500 t | Venting detected on site, 18 Ci (670 GBq) | [1][4][5][6][7][9] | ||
| Corduroy | December 3, 1965 15:13:02.1 | PST (–8 hrs) | NTS Area U10k 37°09′53″N 116°03′11″W / 37.1646°N 116.05319°W | 1,275 m (4,183 ft) – 681.53 m (2,236.0 ft) | underground shaft, weapons development | 120 kt | Venting detected, 1.2 kCi (44 TBq) | [1][4][5][6][7][8] | ||
| Emerson | December 16, 1965 15:39:18.15 | PST (–8 hrs) | NTS Area U2al 37°08′27″N 116°03′51″W / 37.14079°N 116.06405°W | 1,280 m (4,200 ft) – 259.87 m (852.6 ft) | underground shaft, weapons development | 3 kt | Venting detected on site, 0.6 Ci (22 GBq) | [1][4][5][6][7][8] | ||
| Buff | December 16, 1965 19:15:00.04 | PST (–8 hrs) | NTS Area U3dh 37°04′21″N 116°01′48″W / 37.07251°N 116.02998°W | 1,223 m (4,012 ft) – 500.41 m (1,641.8 ft) | underground shaft, weapons development | 51 kt | [1][5][6][8][11] | |||
| Maxwell | January 13, 1966 15:37:43.1 | PST (–8 hrs) | NTS Area U9br 37°06′58″N 116°01′42″W / 37.11617°N 116.0284°W | 1,283 m (4,209 ft) – 183.09 m (600.7 ft) | underground shaft, weapons development | less than 20 kt | Venting detected, 3 Ci (110 GBq) | [1][4][5][6][7] | ||
| Lampblack | January 18, 1966 18:35:00.04 | PST (–8 hrs) | NTS Area U7i 37°05′30″N 116°01′10″W / 37.09165°N 116.01956°W | 1,267 m (4,157 ft) – 561.48 m (1,842.1 ft) | underground shaft, weapons development | 38 kt | [1][5][6][11] | |||
| Sienna | January 18, 1966 18:35:00.04 | PST (–8 hrs) | NTS Area U3cj 37°02′14″N 116°01′09″W / 37.03726°N 116.01922°W | 1,193 m (3,914 ft) – 275.01 m (902.3 ft) | underground shaft, weapons development | 4 kt | Venting detected | [1][4][5][6][10] | ||
| Dovekie | January 21, 1966 18:28:00.04 | PST (–8 hrs) | NTS Area U3cd 37°01′54″N 116°00′59″W / 37.0318°N 116.01649°W | 1,189 m (3,901 ft) – 333.05 m (1,092.7 ft) | underground shaft, weapons development | 7 kt | [1][5][6][8] | |||
| Reo | January 22, 1966 15:17:19.1 | PST (–8 hrs) | NTS Area U10m 37°09′26″N 116°02′23″W / 37.15718°N 116.03959°W | 1,283 m (4,209 ft) – 213.36 m (700.0 ft) | underground shaft, weapons development | 150 t | Venting detected on site, 10 Ci (370 GBq) | [1][4][5][6][7][9] | ||
| Plaid 2 | February 3, 1966 18:17:37.1 | PST (–8 hrs) | NTS Area U2r 37°07′35″N 116°04′13″W / 37.12626°N 116.07034°W | 1,272 m (4,173 ft) – 270.05 m (886.0 ft) | underground shaft, weapons development | 3.5 kt | Venting detected on site, 7 Ci (260 GBq) | [1][4][5][6][7][8] | ||
| Rex | February 24, 1966 15:55:07.04 | PST (–8 hrs) | NTS Area U20h(e) 37°16′18″N 116°26′05″W / 37.27178°N 116.43472°W | 1,971 m (6,467 ft) – 671.69 m (2,203.7 ft) | underground shaft, weapons development | 19 kt | Venting detected, 310 Ci (11,000 GBq) | [1][4][5][6][7] | ||
| Red Hot | March 5, 1966 18:15:00.1 | PST (–8 hrs) | NTS Area U12g.06 37°10′28″N 116°12′33″W / 37.17445°N 116.20924°W | 2,299 m (7,543 ft) – 405.38 m (1,330.0 ft) | tunnel, weapon effect | 2 kt | Venting detected off site, 1 MCi (37 PBq) | [1][4][5][6][7] | ||
| Cinnamon - 2 (with Finfoot) | March 7, 1966 18:41:00.04 | PST (–8 hrs) | NTS Area U3dm 37°02′05″N 116°01′54″W / 37.03461°N 116.03166°W | 1,192 m (3,911 ft) + N/A | underground shaft, safety experiment | less than 20 kt | Venting detected on site | [1][5][6] | simultaneous, separate. | |
| Finfoot - 1 (with Cinnamon) | March 7, 1966 18:41:00.07 | PST (–8 hrs) | NTS Area U3du 37°02′14″N 116°01′49″W / 37.03736°N 116.03014°W | 1,193 m (3,914 ft) – 195.54 m (641.5 ft) | underground shaft, weapons development | 5 kt | I-131 venting detected, 0 | [1][4][5][6][7][8] | simultaneous, separate. | |
| Clymer | March 12, 1966 18:04:13.11 | PST (–8 hrs) | NTS Area U9ce 37°08′37″N 116°03′12″W / 37.14362°N 116.0534°W | 1,266 m (4,154 ft) – 397.09 m (1,302.8 ft) | underground shaft, weapons development | 3 kt | Venting detected, 450 Ci (17,000 GBq) | [1][4][5][6][7][8] | ||
| Purple | March 18, 1966 19:00:00.04 | PST (–8 hrs) | NTS Area U3ds 37°00′33″N 116°00′36″W / 37.0092°N 116.00996°W | 1,180 m (3,870 ft) – 332.79 m (1,091.8 ft) | underground shaft, weapons development | 7 kt | [1][5][6][8] | |||
| Templar | March 24, 1966 14:55:28.14 | PST (–8 hrs) | NTS Area U9bt 37°06′48″N 116°01′56″W / 37.11329°N 116.03223°W | 1,275 m (4,183 ft) – 151 m (495 ft) | underground shaft, peaceful research | 370 t | I-131 venting detected, 0 | [1][4][5][6][7] | Plowshare – excavation device development. | |
| Lime | April 1, 1966 18:40:00.04 | PST (–8 hrs) | NTS Area U7j 37°06′10″N 116°01′15″W / 37.10265°N 116.02081°W | 1,291 m (4,236 ft) – 561.44 m (1,842.0 ft) | underground shaft, weapons development | less than 20 kt | [1][5][6] | |||
| Stutz | April 6, 1966 13:57:17.1 | PST (–8 hrs) | NTS Area U2ca 37°08′22″N 116°08′31″W / 37.13941°N 116.14203°W | 1,458 m (4,783 ft) – 225.34 m (739.3 ft) | underground shaft, weapons development | 5 kt | Venting detected, 1 Ci (37 GBq) | [1][5][6][7][8][9] | ||
| Tomato | April 7, 1966 22:27:30.04 | PST (–8 hrs) | NTS Area U3ek 37°01′03″N 115°59′35″W / 37.01737°N 115.99309°W | 1,195 m (3,921 ft) – 226.31 m (742.5 ft) | underground shaft, weapons development | 6 kt | [1][5][6][8] | |||
| Duryea | April 14, 1966 14:13:43.1 | PST (–8 hrs) | NTS Area U20a 37°14′33″N 116°25′55″W / 37.2425°N 116.43192°W | 1,960 m (6,430 ft) – 544.25 m (1,785.6 ft) | underground shaft, weapons development | 70 kt | Venting detected, 2 Ci (74 GBq) | [1][4][5][6][7] | ||
| Fenton | April 23, 1966 14:55:26.14 | PST (–8 hrs) | NTS Area U2m1 37°09′38″N 116°05′02″W / 37.16052°N 116.08381°W | 1,321 m (4,334 ft) – 167.64 m (550.0 ft) | underground shaft, weapons development | 1.4 kt | Venting detected off site, 1.7 kCi (63 TBq) | [1][4][5][6][7][9] | ||
| Pin Stripe | April 25, 1966 18:38:00.14 | PST (–8 hrs) | NTS Area U11b 36°53′15″N 115°56′30″W / 36.8874°N 115.94159°W | 1,066 m (3,497 ft) – 295.66 m (970.0 ft) | underground shaft, weapon effect | 5 kt | Venting detected off site, 210 kCi (7,800 TBq) | [1][4][5][6][7][11] | ||
| Ochre | April 29, 1966 13:33:00.04 | PST (–8 hrs) | NTS Area U3ec 37°02′37″N 116°01′24″W / 37.04364°N 116.02323°W | 1,196 m (3,924 ft) – 126.14 m (413.8 ft) | underground shaft, safety experiment | less than 20 kt | [1][5][6] | |||
| Traveler | May 4, 1966 13:32:17.09 | PST (–8 hrs) | NTS Area U2cd 37°08′13″N 116°08′17″W / 37.13705°N 116.13807°W | 1,430 m (4,690 ft) – 196.76 m (645.5 ft) | underground shaft, weapons development | 20 kt | Venting detected, 170 Ci (6,300 GBq) | [1][4][5][6][7][8] | ||
| Cyclamen | May 5, 1966 14:00:00.04 | PST (–8 hrs) | NTS Area U3cx 37°03′02″N 116°02′19″W / 37.05056°N 116.03873°W | 1,203 m (3,947 ft) – 304.97 m (1,000.6 ft) | underground shaft, weapons development | 12 kt | [1][5][6][8] | included heavy element experiment. | ||
| Chartreuse | May 6, 1966 15:00:00.08 | PST (–8 hrs) | NTS Area U19d 37°20′53″N 116°19′22″W / 37.34795°N 116.32283°W | 2,064 m (6,772 ft) – 666.75 m (2,187.5 ft) | underground shaft, weapons development | 73 kt | [1][5][6] | |||
| Tapestry | May 12, 1966 19:37:26.2 | PST (–8 hrs) | NTS Area U2an 37°08′03″N 116°04′19″W / 37.13423°N 116.07198°W | 1,281 m (4,203 ft) – 247.19 m (811.0 ft) | underground shaft, weapons effects | 10 kt | Venting detected on site, 8.6 kCi (320 TBq) | [1][5][6][7][8][9] | Objects exposed to the device's effects included Mk2 reentry bodies for the Polaris program and Mk12 reentry bodies for the Minuteman program.[12] | |
| Piranha | May 13, 1966 13:30:00.04 | PST (–8 hrs) | NTS Area U7e 37°05′13″N 116°02′04″W / 37.08681°N 116.03431°W | 1,237 m (4,058 ft) – 548.72 m (1,800.3 ft) | underground shaft, weapons development | 120 kt | [1][5][6][8][11] | |||
| Dumont | May 19, 1966 13:56:28.14 | PST (–8 hrs) | NTS Area U2t 37°06′40″N 116°03′32″W / 37.11109°N 116.05879°W | 1,252 m (4,108 ft) – 670.77 m (2,200.7 ft) | underground shaft, weapons development | 200 kt | Venting detected, 35 Ci (1,300 GBq) | [1][4][5][6][7][8] | ||
| Discus Thrower | May 27, 1966 20:00:00.04 | PST (–8 hrs) | NTS Area U8a 37°10′42″N 116°05′55″W / 37.17834°N 116.09862°W | 1,380 m (4,530 ft) – 337.06 m (1,105.8 ft) | underground shaft, weapon effect | 22 kt | [1][5][6][8] | |||
| Pile Driver | June 2, 1966 15:30:00.09 | PST (–8 hrs) | NTS Area U15a.01 37°13′37″N 116°03′23″W / 37.22701°N 116.0564°W | 1,525 m (5,003 ft) – 462.69 m (1,518.0 ft) | underground shaft, weapon effect | 62 kt | Venting detected on site, 37 kCi (1,400 TBq) | [1][4][5][6][7][11] | Investigate the simulated effects of a nuclear surface detonation on a deeply buried, superhard command and control center in a granite rock formation. | |
| Tan | June 3, 1966 14:00:00.04 | PST (–8 hrs) | NTS Area U7k 37°04′06″N 116°02′10″W / 37.06843°N 116.03606°W | 1,213 m (3,980 ft) – 560.68 m (1,839.5 ft) | underground shaft, weapons development | 160 kt | [1][5][6][8][11] | |||
| Puce | June 10, 1966 14:30:00.04 | PST (–8 hrs) | NTS Area U3bs 37°03′34″N 116°02′23″W / 37.05937°N 116.03967°W | 1,208 m (3,963 ft) – 485.55 m (1,593.0 ft) | underground shaft, weapons development | less than 20 kt | [1][5][6] | |||
| Double Play | June 15, 1966 17:00:00.04 | PST (–8 hrs) | NTS Area U16a.03 37°00′35″N 116°12′14″W / 37.00959°N 116.20382°W | 1,954 m (6,411 ft) – 327.7 m (1,075 ft) | underground shaft, weapon effect | less than 20 kt | Venting detected off site, 840 kCi (31,000 TBq) | [1][4][5][6][7] | ||
| Kankakee | June 15, 1966 18:02:47.13 | PST (–8 hrs) | NTS Area U10p 37°10′17″N 116°02′59″W / 37.17148°N 116.04973°W | 1,281 m (4,203 ft) – 455.25 m (1,493.6 ft) | underground shaft, weapons development | 200 kt | Venting detected, 160 Ci (5,900 GBq) | [1][4][5][6][7][8] | ||
| Vulcan | June 25, 1966 17:13:00.07 | PST (–8 hrs) | NTS Area U2bd 37°09′19″N 116°04′23″W / 37.15535°N 116.07312°W | 1,300 m (4,300 ft) – 322.11 m (1,056.8 ft) | underground shaft, peaceful research | 25 kt | Venting detected, 250 Ci (9,200 GBq) | [1][4][5][6][7][8] | Project Plowshare - Device development, heavy element production. | |
| Halfbeak | June 30, 1966 22:15:00.07 | PST (–8 hrs) | NTS Area U19b 37°18′57″N 116°17′59″W / 37.31575°N 116.29985°W | 2,043 m (6,703 ft) – 819.3 m (2,688 ft) | underground shaft, weapons development | 365 kt | [1][5][6][8] |
References
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