Bunker Buster

The new EGBU-28 (the “E” being for enhanced) replaces the GBU-37. This latest version of the “bunker buster” uses the Global Positioning System for guidance so that it can be dropped with accuracy at higher altitudes in foul weather. The amount of rock and concrete that the EGBU-28 can penetrate is classified, but Major Dick Wright, who was the weapon’s test manager in 1991, said that the older version “went through 20 feet of concrete like butter” and when dropped onto hard ground, penetrated down to 100 feet. Global Security

SPECS:

Mission Offensive counter air, close air support, interdiction
Targets Fixed hard
penetration capability of over 20 feet of concrete
penetration capability of over 100 feet of earth

Class 4,000 lb. Penetrator, Blast/Fragmentation
Service Air Force
Contractor Lockheed (BLU-113/B)
National Forge (BLU-113A/B)
Program status Production
First capability 1991
Weight (lbs.) 4,414
Length (in.) 153 bomb body, 223 overall
Diameter (in.) 14.5 bomb body
Explosive 6471bs. Tritonal
Fuze FMU-143 Series
Stabilizer Air Foil Group (Fins)
Guidance method Laser (man-in-the-loop)
Range Greater than 5 nautical miles
Development cost Development cost is not applicable to this munition.
Production cost $18.2 million
Total cost $18.2 million
Acquisition unit cost $145,600
Production unit cost $145,600
Quantity 125 plus additional production
Platforms F-15E F-111F

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