FAB-5000 bomb

The FAB-5000NG (Russian: ФАБ-5000НГ, where NG stands for its inventor, Nison Ilicz Gelperin) was a 5,000 kilogram (11,000 lb) large air-dropped, thin cased, high explosive demolition bomb used by the Soviet Air Forces during World War II. The device was the most powerful aerial bomb in the wartime Soviet inventory (until the FAB-9000 demolition bomb was developed during the Cold War as part of the M-46 series).