GBU-3/B / CBU-74 cluster bomb
The CBU-74 cluster bomb was a cluster bomb, consisting of a SUU-51/B dispenser filled with 48 BLU-87/B anti-personnel fragmentation 6.1 kg (13.4 lb) cluster submunitions. When fitted with a KMU-422/B Paveway laser guidance kit, the CBU-74/B became the GBU-3/B guided bomb.
First proposed in 1963, the concept for the creation of a guided bomb with a semi-active laser guidance on the basis of regular aerial bombs was chosen by the US Air Force Armaments Directorate in 1965 as the main one and given priority development. The program "Pave Way" demonstrated amazing vitality and fully justified itself. The PGMs created by these programs are structurally similar in layou. The front compartment has a standard laser weathervane target coordinator, an aiming unit, a control unit with a power source, rudders and a rudder drive. The tail part has aerodynamic surfaces of the structural elements, mated with the bomb body. All other elements of the system are identical.
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