A recent video released by the Ukrainian military on X showcases the integration of GBU-39 Small Diameter Bombs on a Su-27 Flanker, marking a significant advancement in Ukraine’s precision strike capabilities. This development, following sightings of MiG-29 Fulcrums equipped with the same bombs, highlights the adaptability of Ukraine’s fighter fleet in response to the Russian invasion.
The video reveals the loading of GBU-39 bombs on a Su-27 using the BRU-61 quadruple rack with a custom adapter, along with the first appearance of AIM-9X missiles in Ukraine’s arsenal, enhancing Kyiv’s air combat capabilities.
The GBU-39B Small Diameter Bomb (SDB) is a 250-pound, precision-guided munition designed for long-range strikes in all weather conditions. Using the Global Positioning System (GPS) for target navigation, the bomb can reach over 40 nautical miles (approximately 74 km) when dropped from altitude. Its compact size allows aircraft to carry multiple SDBs in one sortie, maximizing strike capacity while reducing collateral damage. Thanks to the BRU-61 rack, which holds up to four bombs, it significantly enhances aircraft payload and sortie efficiency.
The video also shows the loading of GBU-39 bombs using the BRU-61 quadruple rack mounted on a custom adapter under the Su-27’s original pylon, as well as the first sighting of AIM-9X missiles in Ukraine’s arsenal, broadening Kyiv’s air combat capabilities. AIM-9X missiles are also used in the NASAMS air defense system and by Ukraine’s F-16s, though in their earlier AIM-9L(M) versions.