GBU-39
Type: system
Definition
GBU-39/B (Small Diameter Bomb, SDB I) is a 250-pound-class, precision-guided air-delivered munition designed to give aircraft an all-weather, day/night standoff strike option while reducing the risk of collateral damage through its smaller size and accuracy. It uses GPS-based guidance to navigate to its aimpoint, and its compact form factor lets many aircraft carry more weapons per sortie (often via a multi-store carriage rack such as the BRU-61/A), improving target coverage without increasing aircraft load as dramatically as larger bombs.
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