During a quick smoke CFF using shell smoke (HC), you continue to use HE in adjustment until which bracket is split?

In the context of a quick smoke call for fire (CFF) using shell smoke (HC), the procedure typically requires the observer to continue using high-explosive (HE) adjustments until a specific bracket is split. The correct answer highlights the significance of understanding how artillery adjustments are made during close air support or indirect fire missions.

When engaging targets under conditions requiring smoke, the primary goal is to obscure the enemy's observation capabilities without compromising the observer’s ability to adjust fire accurately. The bracket split is the point at which the adjustments have successfully moved into the correct range, allowing the observer to effectively establish a smoke screen.

Using HE rounds for adjustments allows the observer to determine the location of the target area more precisely. Specifically, continuing adjustments until the 200-meter bracket is split provides a sufficient margin of safety to determine the effectiveness of the adjustments made while transitioning to smoke rounds. It ensures that the fire mission does not inadvertently place friendly troops at risk by overshooting or undershooting the smoke target area.

Understanding the concept of brackets is crucial. Brackets are established based on the rounds fired and their impact points. Once the fire is effectively adjusted such that a bracket (in this case, 200 meters) has been split, it signals the observer to