RDS-9 explained

The RDS-9 was part of a string of Nuclear weapon testing by the Soviet Union. It was tested on October 19, 1954.[1] This test was the first failure in the RDS series of tests. It was developed originally for the T-5 torpedo. The weapon was modified and retested in 1955.

References

  1. Book: Bukharin, Oleg. 978-0262162029. Kadyshev. Timur. Miaskinov. Eugene. Sutyagin. Igor. Tarasenko. Maxim. Zhelezov. Boris. 2001. Podvig. Pavel. Russian Strategic Nuclear Forces. Cambridge, Massachusetts. The MIT Press.