Declassified U.S. Nuclear Test Film #26

0800026 - Operation Hardtack, Military Effects Studies, Part 4 - Sub-Kiloton Effects (Operation Hardtack II) - 1958 - 23:50 - Black&White - Operation Hardtack II was a 37-test continental series conducted from September 12 to October 30, 1958, at the Nevada Test Site. Addressing the concerns about fallout from atmospheric tests, more than a third of the Hardtack II tests were conducted underground and had yields that did not exceed 22 kilotons.

When the Hardtack series concluded, test ban negotiations between the United States and the Soviet Union were underway in Geneva. These negotiations resulted in a testing moratorium from late 1958 until September 1961.

Hardtack II personnel tested nuclear devices for possible inclusion in the nuclear stockpile; evaluated safety features of nuclear devices; and evaluated containment techniques for underground detonations. The safety experiments were designed to determine the stability of nuclear devices during transportation and storage.

The tests comprising the 1958 Operation Hardtack II were as follows:

OTERO, September 12, shaft, safety experiment, 38 tons
BERNALILLO, September 17, shaft, safety experiment, 15 tons
EDDY, September 19, balloon, weapons related, 83 tons
LUNA, September 21, shaft, safety experiment, 1.5 tons
MERCURY, September 23, tunnel, safety experiment, slight yield
VALENCIA, September 26, shaft, safety experiment, 2 tons
MARS, September 28, tunnel, safety experiment, 13 tons
MORA, September 29, balloon, weapons related, 2 kilotons (kt)
COLFAX, October 5, shaft, safety experiment, 5.5 tons
HIDALGO, October 5, balloon, safety experiment, 77 tons
TAMALPAIS, October 8, tunnel, weapons related, 72 tons
QUAY, October 10, tower, weapons related, 79 tons
LEA, October 13, balloon, weapons related, 1.4 kt
NEPTUNE, October 14, tunnel, safety experiment, 115 tons
HAMILTON, October 15, tower, weapons related, 1.2 tons
LOGAN, October 16, tunnel, weapons related, 5 kt
DONA ANA, October 16, balloon, weapons related, 37 tons
VESTA, October 17, surface, safety experiment, 24 tons
RIO ARRIBA, October 18, tower, weapons related, 90 tons
SAN JUAN, October 20, shaft, safety experiment, zero yield
SOCORRO, October 22, balloon, weapons related, 6 kt
WRANGELL, October 22, balloon, weapons related, 115 tons
RUSHMORE, October 22, balloon, weapons related, 188 tons
OBERON, October 22, tower, safety experiment, zero yield
CATRON, October 24, tower, safety experiment, 21 tons
JUNO, October 24, surface, safety experiment, 1.7 tons
CERES, October 26, tower, safety experiment, 0.7 tons
SANFORD, October 26, balloon, weapons related, 4.9 kt
DE BACA, October 26, balloon, weapons related, 2.2 kt
CHAVEZ, October 27, tower, safety experiment, 0.6 tons
EVANS, October 29, tunnel, weapons related, 55 tons
HUMBOLDT, October 29, tower, weapons related, 7.8 tons
MAZAMA, October 29, tower, weapons related, zero yield
SANTA FE, October 30, balloon, weapons related, 1.3 kt
BLANCA, October 30, tunnel, weapons related, 22 kt
GANYMEDE, October 30, surface, safety experiment, zero yield
TITANIA, October 30, tower, safety experiment, 0.2 tons

Category:

News & Politics

Tags:

• Nukes
• Nuclear
• weapons
• WMD
• radiation
• radioactive
• testing
• warhead
• downwinders
• atomic
• cancer

[F1brawfa]

What the fuck

[Pirlinetor]

Should someone wonder what "REP" (at 8:11 and later) means, it is the acronym of Roentgen Equivalent Physical (which, according to The Free Dictionary, is "an unofficial unit of radiation equivalent to the absorption of 93 ergs per gram of water or soft tissue. An equivalent dose of ionizing radiation as that delivered to tissues by 1 roentgen of x-radiation.")

[iguire]

@Obfuscationist stfu already!! lol

[Obfuscationist]

Since the OP didn't bother . . .

4/4 on the 1958 Hardtack series. Effects tests of sub-kT detonations. Still a sensitive subject, all soundtrack save the intro has been sanitized. Nevertheless, graphical presentation allow some info to be gleaned on cratering, thermal effects, fallout, prompt neutron and gamma rates. Seems to confirm idea that radiation is primary kill mechanism in this range.