Operation mandrel

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Nuclear test
Operation mandrel
nation United StatesUnited States United States
Test location Nevada Test Site /
Amchitka, Alaska /
Grand Valley, Colorado
Period 1969-1970
Number of tests 53
Test type Underground tests
Max. Explosive force 1 MT
navigation
Previous test Operation Bowline
Next test Operation Emery

The operation mandrel was a series of 53 US nuclear weapons testing , the 1969 and 1970 mainly on the Site Nevada Test in Nevada was conducted. Only the Rulison and Milrow tests took place in Amchitka, Alaska and Grand Valley, Colorado, respectively.

The individual tests of the mandrel series

# bomb Date / Time
( GMT )
Proving Ground Test type Explosive power Remarks
1 Ildrim July 16, 1969
1:02 pm
Area 2au Manhole 20 to 200 kT
2 Hutch July 16, 1969
2:55 pm
Area 2df Manhole 20 to 200 kT
3 Spider-A
Spider-B
August 14, 1969
2:30 p.m.
Area 2bp1
Area 2bp2
Shaft
shaft
<20 kT
<20 kT
Simultaneous detonation of different bombs in different shafts
4th Pliers August 27, 1969
1:45 p.m.
Area 3gn Manhole <20 kT
5 Horehound August 27, 1969
1:45 p.m.
Area 3gm Manhole <20 kT
6th Rulison September 10, 1969
9:00 p.m.
Grand Valley Manhole 40 kT Test as part of Operation Plowshare
7th Minute steak September 12, 1969
6:02 p.m.
Area 11f Manhole <20 kT
8th Jorum September 16, 1969
2:30 p.m.
Area 20e Manhole <1 MT
9 Kyack-A
Kyack-B
September 20, 1969
2:30 p.m.
Area 2bq1
Area 2bq2
Shaft
shaft
<20 kT
<20 kT
Simultaneous detonation of different bombs in different shafts
10 Seaweed-C
Seaweed-D
Seaweed-E
October 1, 1969
2:30 p.m.
Area 3hke
Area 3hkf
Area 3hkc
Shaft
shaft
shaft
<20 kT
<20 kT
<20 kT
Simultaneous detonation of different bombs in different shafts
11 Milrow October 2, 1969
10:06 pm
Amchitka , Alaska Manhole approx. 1 MT
12 Pipkin October 8, 1969
2:30 p.m.
Area 20b Manhole 200 to 1000 kT
13 Seaweed B October 16, 1969
2 p.m.
Area 3hkd Manhole <20 kT
14th Cruet October 29, 1969
7:30 p.m.
Area 2cn Manhole 11 kT
15th Pod-A
Pod-B
Pod-C
Pod-D
October 29, 1969
8:00 p.m.
Area 2ch
Area 2ci
Area 2cj
Area 2ck
Shaft
shaft
shaft
shaft
16.7 kT
(total)
Simultaneous detonation of different bombs in different shafts
16 Calabash October 29, 1969
10:01 pm
Area 2av Manhole 110 kT
17th Scuttle November 13, 1969
3:15 p.m.
Area 2bh Manhole 1.7 kT
18th Piccalilli November 21, 1969
2:52 pm
Area 3fc Manhole 20 to 200 kT
19th planner November 21, 1969
2:52 pm
Area 3el Manhole <20 kT
20th Diesel Train December 5, 1969
5:00 p.m.
Area 12e.11 tunnel <20 kT
21st Culantro-A
Culantro-B
December 10, 1969
3:00 p.m.
Area 3hia
Area 3hib
Shaft
shaft
<20 kT
<20 kT
Simultaneous detonation of different bombs in different shafts
22nd Do-A
Do-B
Do-C
Do-D
December 10, 1969
3:30 p.m.
Area 10am1
Area 10am2
Area 10am3
Area 10am4
Shaft
shaft
shaft
shaft
<20 kT
<20 kT
<20 kT
<20 kT
Simultaneous detonation of different bombs in different shafts
23 Grape A December 17, 1969
3 p.m.
Area 7s Manhole 20 to 200 kT
24 Lovage December 17, 1969
3:15 p.m.
Area 3fe Manhole <20 kT
25th Terrine-White
Terrine-Yellow
December 18, 1969
7:00 p.m.
Area 9bi1
Area 9bi2
Shaft
shaft
20 to 200 kT
20 to 200 kT
Simultaneous detonation of different bombs in different shafts
26th Fob-Green
Fob-Red
Fob-Blue
January 23, 1970
4:30 p.m.
Area 9iv27
Area 9iv24
Area 9iy27
Shaft
shaft
shaft
<20 kT
<20 kT
<20 kT
Simultaneous detonation of different bombs in different shafts
27 Ajo January 30, 1970
5:00 p.m.
Area 3gd Manhole <20 kT
28 Grape B February 4, 1970
5:00 p.m.
Area 7v Manhole 20 to 200 kT
29 Belen February 4, 1970
5:00 p.m.
Area 3br Manhole 20 to 200 kT
30th Labis February 5, 1970
3:00 p.m.
Area 10an Manhole 25 kT
31 Diana crap February 11, 1970
7:15 pm
Area 12n.06 tunnel <20 kT
32 Coumarin February 25, 1970
2:28 pm
Area 3gz Manhole 20 to 200 kT
33 Yannigan-Red
Yannigan-Blue
Yannigan-White
February 26, 1970
3:30 p.m.
Area 2ay1
Area 2ay3
Area 2ay2
Shaft
shaft
shaft
20 to 200 kT
20 to 200 kT
20 to 200 kT
Simultaneous detonation of different bombs in different shafts
34 Cyathus March 6, 1970
2:24 p.m.
Area 8b Manhole 8.7 kT
35 Arabis-Red
Arabis-Green
Arabis-Blue
March 6, 1970
3:00 p.m.
Area 9itsv26
Area 9itsx28
Area 9itsz26
Shaft
shaft
shaft
<20 kT
<20 kT
<20 kT
Simultaneous detonation of different bombs in different shafts
36 Jal March 19, 1970
2:03 p.m.
Area 3hh Manhole <20 kT
37 Shaper March 23, 1970
11:05 pm
Area 7r Manhole 20 to 200 kT
38 Handley March 26, 1970
7:00 p.m.
Area 20m Manhole > 1 MT
39 Snubber April 21, 1970
2:30 p.m.
Area 3ev2s Manhole 12.7 kT
40 Can-Green
Can-Red
April 21, 1970
3:00 p.m.
Area 2dd1
Area 2dd4
Shaft
shaft
20 to 200 kT
20 to 200 kT
Simultaneous detonation of different bombs in different shafts
41 Beebalm May 1, 1970
2:13 pm
Area 3fn Manhole <20 kT
42 Hod-A (Green)
Hod-B (Red)
May 1, 1970
2:40 p.m.
Area 9itsx23
Area 9itsx20
Shaft
shaft
<20 kT
<20 kT
Simultaneous detonation of different bombs in different shafts
43 Hod-C (Blue) May 1, 1970
2:25 pm
Area 9iz25 Manhole <20 kT
44 Mint leaf May 5, 1970
3:30 p.m.
Area 12t.01 tunnel <20 kT
45 Diamond dust May 12, 1970
2:00 p.m.
Area 16a.05 tunnel <20 kT
46 Cornice-Yellow
Cornice-Green
May 15, 1970
1:30 p.m.
Area 10ap1
Area 10ap3
Shaft
shaft
20 to 200 kT
20 to 200 kT
Simultaneous detonation of different bombs in different shafts
47 Manzanas May 21, 1970
2:00 p.m.
Area 3gr Manhole <20 kT
48 Morrones May 21, 1970
2:15 p.m.
Area 3ei Manhole 20 to 200 kT
49 Hudson Moon May 26, 1970
2:16 p.m.
Area 12e.12 tunnel <20 kT
50 Flask-Green
Flask-Yellow
Flask-Red
May 26, 1970
3:00 p.m.
Area 2az1
Area 2az2
Area 2az3
Shaft
shaft
shaft
105 kT
90 T
35 T
Simultaneous ignition of different bombs in different shafts; Test as part of Operation Plowshare
51 Piton-C May 28, 1970
11:45 a.m.
Area 9itsaa25 Manhole <20 kT
52 Piton-A
Piton-B
May 28, 1970
12:00 p.m.
Area 9itsy30
Area 9itsx27
Shaft
shaft
<20 kT
<20 kT
Simultaneous detonation of different bombs in different shafts
53 Arnica-Yellow
Arnica-Violet
June 26, 1970
1:00 p.m.
Area 2dd2
Area 2dd3
Shaft
shaft
<20 kT
<20 kT
Simultaneous detonation of different bombs in different shafts

Web links

Commons : Operation Mandrel  - collection of images, videos and audio files