FDC General Knowledge For Fire Control Specialist (13J) Practice Test

Fuse and charge are chosen as part of the firing solution that begins with aiming the gun. You first determine the target’s position in space by setting elevation (the vertical angle) and deflection (the horizontal aim) so the round reaches the intended range and line of fire. Once you have that aiming solution, you select the fuse setting and the propellant charge to match the range, target height, and desired detonation effect (for example, an airburst, delayed fuzing, or impact). The fuse controls when the round detonates, and the charge controls how far and with what velocity the round travels to reach the target, so they must be coordinated with the elevation and deflection. Choices like map color, headlines, or ammo availability don’t influence the timing and detonation plan, so they’re not part of the fuse and charge decision.