GBU-28
| Guided Bomb Unit‐28 (GBU‐28) | |
|---|---|
| Type | Laser-guided bunker busting bomb |
| Place of origin | United States |
| Service history | |
| In service | 1991–present |
| Used by |
|
| Wars | |
| Production history | |
| Designer | Albert L. Weimorts |
| Manufacturer | |
| Specifications | |
| Mass | 4,000–5,000 lb (1,800–2,300 kg) |
| Length |
|
| Diameter |
|
| Filling | Tritonal, AFX‐757 IM |
| Filling weight | 675 lb (306.2 kg) |
Detonation mechanism | Impact, time delay |
| References | Janes |
The GBU-28 (Guided Bomb Unit‐28) is a 4,000–5,000-pound (1,800–2,300 kg) class laser-guided "bunker busting" bomb produced originally by the Watervliet Arsenal, Watervliet, New York. It was designed, manufactured, and deployed in less than three weeks due to an urgent need during Operation Desert Storm to penetrate hardened Iraqi command centers located deep underground. Only two of the weapons were dropped in Desert Storm, both by F-111Fs. One GBU-28 was dropped during Operation Iraqi Freedom. It was designed by Albert L. Weimorts.
The Enhanced GBU-28 augments the laser-guidance with inertial navigation and GPS guidance systems.