RDS-37

RDS-37
RDS-37 in testing (1955)
Information
CountrySoviet Union
Test siteSemipalatinsk Test Site, Kazakh SSR
PeriodNovember 1955
Number of tests1
Test typeAtmospheric test
Device typeFusion
Max. yieldTotal yield 1.6 megatons of TNT (6.7 PJ)
Test chronology

RDS-37 (Russian: РДС-37) was the Soviet Union's first two-stage hydrogen bomb, first tested on 22 November 1955. The weapon had a nominal yield of approximately 3 megatons. It was scaled down to 1.6 megatons for the live test.