Colonel William A. Phillips

The RDS-2 (Russian: РДС-2) was the second atomic bomb developed by the Soviet Union as an improved version of the RDS-1. It included new explosive lenses along with a new core design to decrease the probability of pre-detonation or 'fizzle'.[1] The RDS-2 weighed approximately 3,200 kilograms (7,055 lb) and had a diameter of 1.25 m.[a][2] The RDS-2 was tested on September 24, 1951 and produced a 38.3 kiloton yield. It was detonated from the top of a tower thirty meters high. The detonation was controlled by a bomber flying over the testing site instead of the detonation being controlled by a ground control center.

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Notes

  1. ^ RDS-2 and RDS-3 differed only in nuclear core, hence similar weight and diameter

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