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Identify this structure

Post-War Discuss Identify this structure in the Other Eras forums; Evans is correct. I'm still investigating what bomb test gouged out the crater in the reef....


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Old 09-16-2006, 02:07 PM   #16
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Evans is correct.

I'm still investigating what bomb test gouged out the crater in the reef.
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Old 09-16-2006, 02:17 PM   #17
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I initially thout it was from another test. It looks like it was from Ivy King, the largest non-hydrogen explosion. It was 500 kilotons. Still looking, but Ivy King was 2000 feet north of Runit, so that is most likely it.
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Old 09-16-2006, 04:19 PM   #18
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Quote:
Originally Posted by evangilder
I initially thout it was from another test. It looks like it was from Ivy King, the largest non-hydrogen explosion. It was 500 kilotons. Still looking, but Ivy King was 2000 feet north of Runit, so that is most likely it.
I dont believe it was Ivy King. 2000 ft away is far from the island.
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Old 09-16-2006, 07:09 PM   #19
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2000 feet is less than half a mile. Looks about right judging by the picture.
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Old 09-16-2006, 07:26 PM   #20
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It may be LaCrosse after all. I was looking into that one earlier and just read this:
Test: Lacrosse
Time: 18:25 4 May 1956 (GMT)
06:25 5 May 1956 (local)
Location: Platform on reef off Runit (Yvonne) Island, Enewetak Atoll
Test Height and Type: 8 feet above platform, 17 feet above reef, surface burst
Yield: 40 kt

LASL test of an externally initiated boosted primary in a thermonuclear system mockup for the TX-39 (a redesign of the Mk-15). The overall device was 34.5 inches in diameter and 100 inches long, weight was 8386 lb., the primary system was 583 lb. Predicted yield was 25-50 kt. This primary was similar to the all oralloy device safety tested in Project 56 #1. This primary was used in the Redwing Apache thermonuclear shot, and was similar to the device later fired in Plumbbob Priscilla.

Crater dimensions were 400 feet wide, 55 feet deep.
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Old 09-16-2006, 07:28 PM   #21
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One more piece pointing to LaCrosse:
Test: Cactus
Time: 18:15 5 May 1958 (GMT)
06:15 6 May 1958 (local)
Location: Runit (Yvonne) Island, Enewetak Atoll
Test Height and Type: Surface, 3 feet off shot building floor
Yield: 18 kt

LASL test of a MK-43 primary in a thermonuclear system mockup. Similar to to the Elder device. Predicted yield 13-14 kt. The Cactus device primary weighed 110.3 lb (50 kg). The over all device weighed 1432 lb. and had a width of 18 inches and a length of 69 inches.

The device was detonated 596 feet southwest of the Redwing Lacrosse crater. The Cactus crater had a diameter of 346 feet, and a maximum depth of 37.2 feet (with a 8-14 foot lip). In 1979-1980 this crater was used as a burial pit to inter 110,000 cubic yards of radioactive soil scraped from the various contaminated Enewetak Atoll islands.
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Old 09-16-2006, 10:46 PM   #22
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Evansglider, I believe youre right.

I suspected it was Lacrosse, but I wanted to look at the test data more closely.
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Old 09-17-2006, 02:11 AM   #23
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The reason I think it was Lacrosse now is because I would think a 500 kiloton yield from Ivy King would have made a larger crater than the one seen in the picture. The 2 craters look similar in size and the dimensions are close.
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Old 09-17-2006, 04:23 AM   #24
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here's a pic of the "dome"
Attached Images
File Type: jpg concrete_dome_web.jpg (14.9 KB, 22 views)
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Old 09-17-2006, 02:48 PM   #25
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Thats pretty ****ing cool!
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Old 09-17-2006, 04:34 PM   #26
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Quote:
Originally Posted by DerAdlerIstGelandet
Thats pretty ****ing cool!
since its radioactive, maybe the term is "its pretty hot!"

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