Small Diameter Bomb Increment II (SDB II)

The GBU-53/B SDB II is an air-launched, precision-strike standoff weapon that will enable the warfighter to defeat moving and fixed targets in adverse weather conditions. Using a GPS/INS system to guide to the vicinity of a moving target, the weapon has the capability to receive updated target coordinates mid-flight via two-way datalink (Link-16 or UHF) communications.  Using these network options, SDB II allows airborne or ground controllers the ability to send in-flight target updates and the capability to abort a mission post-release.


Primary function: All-weather, through-the-weather attack moving and stationary targets

Contractor: Raytheon Co.

Threshold Platforms: F-15E (USAF) F/A-18E/F, F-35B/C (DoN)

Guidance: Imaging infrared, millimeter waver radar, digital semi-active laser

Class: 250-pound class munition

Weight: 208 pounds

Length: 70 inches

Diameter: 7 inches