What component of the M777A2 provides information for targeting decisions?

The Integrated Weapon Elevation and Azimuth System is crucial for targeting decisions in the M777A2 Howitzer. This system accurately measures the elevation and azimuth angles of the weapon, allowing artillery personnel to determine precise aiming information. By integrating data from various sensors and computing the optimal angle for firing, it enhances the accuracy and effectiveness of artillery fire.

While other systems like the GPS can provide location data, and the sighting system helps in visual targeting, the Integrated Weapon Elevation and Azimuth System directly supports the artillery crew's ability to adjust and aim the weapon correctly for successful engagements. The loading mechanism, on the other hand, focuses primarily on the operational aspect of artillery firing rather than targeting.