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.

Oct 12, 2021 · The GBU-28/B is a 5,000-pound-class precision-guided bunker-buster that uses a Paveway-series laser guidance system and that first entered Air Force service in 1991. These weapons were originally developed due to concerns about the ability of the BLU-109/B to reach certain deeply-buried targets in Iraq in the lead up to the first Gulf War.

Guided Bomb Unit-28 (GBU-28) BLU-113 Penetrator For a visual depiction of how the GBU-28 works view the grapic produced by Bob Sherman and USA Today on-line.

Oct 12, 2021 · Research on the 5,000-pound weapon began in 2017.

GBU-28 variants are large 5,000-lb class air-to-ground penetrators initially developed for use against Iraq’s deeply buried, hardened C2 facilities. The GBU-28B adds GPS/INS guidance to the existing laser seeker for all-weather targeting.

With a pinpoint accurate proportional navigation Paveway III seeker, and a hardened steel casing containing over 600 lb of Tritonal explosive, the GBU-28 is the most destructive precision non-nuclear weapon in operational service at this time.

Mar 7, 2024 · In tests, the GBU-28 has penetrated 100 feet (30.5 meters) of earth or 20 feet (6 meters) of concrete. In a typical mission, intelligence sources or aerial/satellite images reveal the location of the bunker. A GBU-28 is loaded into a B2 Stealth bomber, an F-111 or similar aircraft.

The Guided Bomb Unit 28 (GBU-28) is a 5,000-pound (2,268 kg) laser-guided "bunker busting" bomb nicknamed "Deep Throat" produced originally by the Watervliet Arsenal, Watervliet, New York.

Feb 16, 2009 · The GBU-28 is a laser-guided bomb built by the United States for use against hardened targets (such as bunker s) during the first Gulf War. It is sometimes referred to as a bunker buster.

Jul 7, 2011 · Guided Bomb Unit-28 (GBU-28) BLU-113 PenetratorNEWSLETTER