The Soviet-era FAB-500 bomb has evolved through nearly a century of military engineering.

Countries & Cities · Published 15 October 2026 Swipe more like this →

In short: Originally conceived in 1929, the FAB-500 series remains a staple of modern aerial warfare. From its early riveted construction to the recent integration of precision glide kits, this 500-kilogram class weapon has been continuously adapted to meet changing aerodynamic requirements and tactical needs across nearly a century of global conflicts.

The FAB-500, or 'high-capacity aerial bomb,' traces its origins to 1929, when development began alongside the smaller FAB-250. Initial testing in 1931 led to immediate series production. Throughout the 1930s, the design underwent iterative safety and structural refinements, including the introduction of retaining collars for lift eyelets and modifications to the tail cone joint. By 1935, engineers had successfully reduced the bomb's weight by approximately three kilograms, reflecting a period of rapid technical adjustment.

During World War II and the subsequent decades, the series branched into specialized variants. The 1943 FAB-500M-43 and 1944 FAB-500M-44 introduced different body lengths, while the 1954 M-54 model was specifically shaped for internal carriage in heavy bombers. By 1962, the M-62 model emerged as a low-drag design optimized for external hardpoints on fighter-bombers. These bombs have seen extensive service, from the Spanish Civil War and the 1980s conflict in Afghanistan to the Syrian civil war and the 2022 invasion of Ukraine.

The most significant recent shift involves the UMPK, a glide kit featuring pop-out wings. First identified on wreckage in March 2023, this system allows the bomb to achieve a stand-off range of up to 70 kilometers. By enabling aircraft to release munitions from a distance, the kit helps pilots avoid exposure to air defense systems. As of May 2023, these UMPK-equipped bombs have been deployed at rates of up to 20 per day, presenting a tactical challenge as they remain difficult for current air defenses to intercept.

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