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Operation First Lightning (RDS-1) Nuclear Test

Sector: Government • Location: Semipalatinsk, Soviet Union

Source: TheCollector

Project
Completed

The Soviet Union's first nuclear test conducted on August 29, 1949, at the Semipalatinsk Test Site in Kazakhstan. The device, code-named 'First Lightning' or RDS-1, was a plutonium implosion bomb similar in design to the Manhattan Project's 'Fat Man' device. The test produced an explosion equivalent to approximately 22 kilotons of TNT, comparable to the bombs dropped by the United States on Hirosh

Status
Closed
Sector
Government, Nuclear
Location
Semipalatinsk, Russia
Updated
22 Jul 2026
Source
TheCollector

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The project “Operation First Lightning (RDS-1) Nuclear Test” is an infrastructure initiative in the Government sector, located in Semipalatinsk, Soviet Union. Taiyo aggregates data on it from TheCollector.

Participants

Not available for this record.

Status

Original status

completed

Taiyo status

Closed

Taiyo last update

2026-07-22

Contact

Not available for this record.

Description

Description

The Soviet Union's first nuclear test conducted on August 29, 1949, at the Semipalatinsk Test Site in Kazakhstan. The device, code-named 'First Lightning' or RDS-1, was a plutonium implosion bomb similar in design to the Manhattan Project's 'Fat Man' device. The test produced an explosion equivalent to approximately 22 kilotons of TNT, comparable to the bombs dropped by the United States on Hiroshima and Nagasaki.

Original sector

Military

Location

Country

Russia

City

Semipalatinsk

Source

Source

TheCollector

URL

More Details

Record type

Project

Sector

Government, Nuclear

Article published date

2026-05-09

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