What does the white line (skunk line) on the 120 mortar need to match with?

The correct association for the white line, often referred to as the skunk line, on the 120 mm mortar is with the firing pin. This line is an important feature in achieving correct alignment for firing the mortar. The skunk line must be aligned with the firing pin to ensure that the round will travel accurately when discharged.

When the mortar is set up, correctly aligning the skunk line with the firing pin establishes the proper orientation of the tube in relation to the target. This ensures that the round is fired in the intended direction and maintains the firing accuracy needed for effective engagement of targets. Proper alignment is crucial for the mortar's operation, as any misalignment can lead to a deviation in the projectile's trajectory, potentially resulting in a miss or hitting unintended targets.

While the elevation marker, azimuth scale, and baseplate indicator all play significant roles in the setup and operation of the mortar, they do not have the same direct connection to the firing mechanism as the skunk line does with the firing pin. Each of these components contributes to overall accuracy and functionality but does not serve the same specific purpose as the alignment with the firing pin. Therefore, recognizing the skunk line's relevance in this context is essential for effective mortar operation.