CBU-58

Cluster Bomb Unit

The CBU-58 is loaded with 650 bomblets. These bomblets contain 5-gram titanium pellets, making them incendiary and useful against flammable targets.

The CBU-52, -58 and -71 all use SUU-30 dispensers, a metal cylinder divided longitudinally. One-half contains a strong back section that provides for forced ejection and sway-bracing. The two halves lock together. Four cast aluminum fins are attached at a 9~degree angle to the aft end of the dispenser and are canted 1.25 degrees to impart spin-stabilized flight. When released from the aircraft, the arming wire/lanyard initiates the fuze arming and delay cycle. At fuze function, the fuze booster ignites and unlocks the forward end of the dispenser. Ram air action on the dispenser forces the two halves apart, instantaneously dispensing the payload and allowing the bomblets to spin-arm and self-dispense. A total of 17,831 were expended during the Gulf War.

STATISTICS

Mission

Free-fall cluster munition

Developed by

USA

Deployed by

USA

Service

USAF, USN, USMC

Development Year

 

Deployment Year

 

Targets

Soft targets such as vehicles

Platform

All NATO Aircraft

Number Built

 

Number Deployed

17,831 during the Gulf War

Contractor

 

SPECIFICATION / PERFORMANCE

Length

7 ft. 9 in.

Body Diameter

1 ft. 1.4 in.

Wing/Fin Span

 

Launch Weight

800 lbs.

Range

 

Speed

625 kts.

SUBSYSTEMS

Propulsion

none

Engine

none

Payload

650 Bomblets

Warhead

BLU-63A/B anti-materiel / anti-personnel bomblet submunitions

Fuzing

M339, FMU-56, FMU-11, FMU-26, M907