Which method involves using an aiming stake aligned with the target when firing without an FDC?

The method that involves using an aiming stake aligned with the target when firing without a Fire Direction Center (FDC) is correctly identified as direct alignment. In this technique, the crew sets up an aiming stake at the intended impact point, facilitating a clear visual reference to ensure the mortar is correctly aligned with the target. This method is particularly useful in situations where communication with an FDC is not available, allowing the gun crew to accurately adjust their fire based on the established point.

Using direct alignment helps to maintain precision in the aiming process and ensures that the rounds land where intended. It emphasizes the importance of visual cues and physical markers in the absence of external guidance, enhancing the effectiveness of the mortar team in the field. The focus on aligning the mortar with a specific stake illustrates the hands-on approach needed for accurate artillery fire when more sophisticated systems are unavailable.