The Paveway III guidance kit is more expensive, however, making the GBU-24 suitable against well-defended, high-value targets.
This weapon is in service with the USAF, US Navy, US Marine Corps, and various NATO air forces.
After release from the delivery aircraft, the thermal battery for the Guidance Computer Group fires to supply power; the arming wire for the fuze is withdrawn; the wings are released; and depending on the configuration, either the turbine generator or the safety switch (to power the fuze) is activated.
If the laser illumination is lost, the bomb stops guiding and follows a roughly ballistic path, although interference from the guidance kit can lead to the weapon wandering off course.
The GBU-24 is precise enough to be able to fly down ventilation shafts into hardened targets, although accuracy is usually dependent on the ability to point the laser correctly rather than the bomb's ability to hit the impact point.