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The GBU-39/B Small Diameter Bomb (SDB) is a 250-pound (110 kg) precision-guided glide bomb that is intended to allow aircraft to carry a greater number of smaller, more accurate bombs. Most US Air Force aircraft will be able to carry (using the BRU-61/A rack [ 16 ] ) a pack of four SDBs in place of a single 2,000-pound (910 kg) Mark 84 bomb .
The GBU-53/B StormBreaker, previously known as the Small Diameter Bomb II, is an American air-launched, precision-guided glide bomb. [8]Development was started in 2006 for a 250 pounds (113 kg) class bomb that can identify and strike mobile targets from standoff distances in all weather conditions.
The air dropped Small Diameter Bomb "has proved resilient to jamming” and has a “nearly 90 percent" accuracy rate. Previously Ukraine had operated the GLSDB ground launched version of the Small Diameter Bomb which was regarded "ineffective" due to Russian jamming. They are also harder to intercept due to their small size. [50]
The missile's folding fins allow it to be launched from a 5.5 in (140 mm) tube. It can be set to engage the target with height of burst, point detonation or fuze delay. The U.S. Navy has tested the Griffin as a shipboard missile guided by laser at fast-moving small boats; they planned to use it on the Littoral Combat Ships. [9]
Dimensions [ edit ] The W80 is physically quite small: the physics package itself is about the size of a conventional Mk.81 250-pound (110 kg) bomb, 11.8 inches (30 cm) in diameter and 31.4 inches (80 cm) long, and only slightly heavier at about 290 pounds (130 kg).
Development of a precision guided variant of the Mk 81 bomb (GBU-29) was started due to its potential to reduce collateral damage compared to larger bombs, but this program has now been cancelled [1] in favor of the Small Diameter Bomb.
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A B-2 Spirit dropping Mk82 bombs into the Pacific Ocean in a 1994 training exercise off Point Mugu, California.. With a nominal weight of 500 lb (230 kg), it is one of the smallest bombs in current service, and one of the most common air-dropped weapons in the world.