BLU-109 vs GBU-28

The BLU-109 is a United States penetrator bomb introduced in 1985, featuring a thick steel casing designed to breach reinforced concrete structures before detonation.
Origin πŸ‡ΊπŸ‡Έ United States
Category Penetration Bomb
Type Hardened penetration bomb
Manufacturer Lockheed Martin
Service year 1985
Number produced 30,000 units
Estimated unit price NA
The GBU-28 is a 5,000 lb laser-guided bomb designed to destroy deeply buried, hardened targets. It was developed for use during Operation Desert Storm.
Origin πŸ‡ΊπŸ‡Έ United States
Category Penetration Bomb
Type Laser-guided bunker-busting bomb
Manufacturer Watervliet Arsenal
Service year 1991
Number produced -- units
Estimated unit price NA
Weight 874 kg β—‰
Warhead 250.0 kg β—‰
Length 2.39 m β—‰
Diameter 370 mm β—‰
Guidance --
Warhead type Tritonal
Weight 2,268 kg β—‰
Warhead 286.0 kg β—‰
Length 5.82 m β—‰
Diameter 203 mm β—‰
Guidance Laser, Inertial, GPS
Warhead type Tritonal or AFX-757 explosive