Ballistic Fire Control Computer
The M1 Abrams contain a ballistic fire-control computer that incorporates both user and system-supplied data. This data comes from various sources to determine and present the three mechanisms of a ballistic solution: lead angle, ammunition category, and range to target. Some of the sources utilized, to just name a few, include air temperature, a crosswind sensor, a laser rangefinder, a muzzle reference system (MRS), and a pendulum static cant sensor.