GBU-32 JDAM

Defense Systems Full Specifications

GBU-32 JDAM: Precision 1,000-lb Guided Bomb Kit

The GBU-32 represents a cornerstone of American precision strike capability within the Joint Direct Attack Munition (JDAM) family. This guided bomb transforms unguided 1,000-pound general-purpose bombs into accurate, all-weather smart munitions through the addition of a GPS-aided inertial navigation system (INS) tail kit. Developed to meet the demands of post-Cold War conflicts requiring reduced collateral damage and high first-pass accuracy, the GBU-32 enables U.S. forces to engage fixed and mobile targets effectively from medium to high altitudes.

Manufacturer

Boeing Defense, Space & Security serves as the primary contractor for the JDAM program, building on initial development work by McDonnell Douglas. The GBU-32 integrates with Mk 83 or BLU-110 warheads, with production supporting U.S. Air Force and Navy requirements.

Speed and Range

Released from aircraft at high altitudes, the GBU-32 achieves standoff ranges of up to 15 miles (24 km), depending on release altitude and speed. It supports delivery from platforms operating above 45,000 feet. While not a powered munition with sustained supersonic speed, it maintains high subsonic velocities during glide, prioritizing precision over raw velocity.

Cost/Price

The unit cost for a JDAM tail kit, including the GBU-32 configuration, is approximately $22,000–$25,000 (adjusted for various fiscal years), making it a cost-effective precision upgrade compared to legacy guided weapons. Full munition costs vary with the warhead.

The GBU-32 has seen extensive operational use since its introduction in the late 1990s, proving its value in operations such as those in Iraq and Afghanistan. Its GPS/INS guidance provides a Circular Error Probable (CEP) of about 16 feet under GPS conditions, offering exceptional reliability even in GPS-denied environments via INS backup. This combination of accuracy, affordability, and compatibility with a wide range of U.S. combat aircraft—including the F-15E, F-16, F-22, and bombers—ensures it remains a staple in the U.S. inventory for close air support, interdiction, and strategic strikes.