GBU-39 Small Diameter Bomb
From Citizendium, the Citizens' Compendium
The GBU-39 Small Diameter Bomb has the same guidance and ballistics of larger bombs equipped with the last Joint Direct Action Munition guidance strap-on kit, but offers other advantages.[1] Especially with new explosives,[2] it is exceptionally destructive to a small area, but produces much less damage outside that area. Its lower weight also provides greater range for the same number of bombs, considered especially important by the Israelis. [3]
Three GBU-39s nominally fit into a single mounting position for a Mk. 84 2000 pound bomb, but can be launched separately, in a Triple Ejector Rack on wings or in a rotary launcher.

